I'm trying to get contact details of a contact that the user picks from the contacts list in Android using Intent as the following code:
Intent Intent = new Intent(Intent.ActionPick, ContactsContract.Contacts.ContentUri);
Intent.SetType(ContactsContract.Contacts.ContentType);
StartActivityForResult(Intent, 3);
Now on the Intent results I run the following code to get specific contact information:
public override void OnActivityResult(int requestCode, int resultCode, Intent data)
{
if (requestCode == 3 && resultCode == -1 && data != null) //result code -1 means OK 0 Means cancelled Result.Ok
{
var ContactData = data.Data;
string ID = "";
string name = "";
string address = "";
byte[] picture = new byte[0];
List<string> numbers = new List<string>();
List<string> emails = new List<string>();
string mobile = "";
string email = "";
string selectionString = "id = ?";
string[] columnsNames = new string[] {
ContactsContract.Contacts.InterfaceConsts.Id,
ContactsContract.Contacts.InterfaceConsts.DisplayName,
ContactsContract.Contacts.InterfaceConsts.PhotoUri
};
var loader = new CursorLoader(Statics.mainActivity, ContactData, null, null, null, null);
var cursor = (ICursor)loader.LoadInBackground();
if (cursor.MoveToFirst())
{
ID = cursor.GetString(cursor.GetColumnIndex(columnsNames[0]));
name = cursor.GetString(cursor.GetColumnIndex(columnsNames[1]));
picture = cursor.GetBlob(cursor.GetColumnIndex(columnsNames[2]));
}
//Store Contact ID
string[] selectionStringArgs = new string[] { ID };
//Phone Numbers
string[] columnsNames2 = new string[] {
ContactsContract.CommonDataKinds.Phone.Number
};
var loader2 = new CursorLoader(Statics.mainActivity, ContactsContract.CommonDataKinds.Phone.ContentUri, columnsNames2, selectionString, selectionStringArgs, null);
var cursor2 = (ICursor)loader2.LoadInBackground();
while (cursor2.MoveToNext())
{
numbers.Add(cursor2.GetString(cursor2.GetColumnIndex(columnsNames2[0])));
}
//Email Address
string[] columnsNames3 = new string[] {
ContactsContract.CommonDataKinds.Email.Address
};
var loader3 = new CursorLoader(Statics.mainActivity, ContactsContract.CommonDataKinds.Email.ContentUri, columnsNames3, selectionString, selectionStringArgs, null);
var cursor3 = (ICursor)loader3.LoadInBackground();
while (cursor3.MoveToNext())
{
emails.Add(cursor3.GetString(cursor3.GetColumnIndex(columnsNames3[0])));
}
int TempRecepitntID = 0;
EmployeesViewModel tempRecipent = new EmployeesViewModel();
TempRecepitntID = Statics.mainActivity.currentViewModel.SelectedChat.ReceiverEmployee;
foreach (EmployeesViewModel evm in Statics.mainActivity.currentViewModel.Employees)
{
if (evm.ID == TempRecepitntID)
tempRecipent = evm;
}
new Android.Support.V7.App.AlertDialog.Builder(Statics.mainActivity)
.SetPositiveButton("Yes", (sender1, args) =>
{
Statics.mainActivity.currentViewModel.AddMessage(picture, tempRecipent, Statics.mainActivity.currentViewModel.SelectedChat.ID, "contact", 0, "", name, numbers[0], mobile, email, address);
})
.SetNegativeButton("No", (sender1, args) =>
{
// cancel
})
.SetMessage("Are you shure you want to send?")
.SetTitle("System Message")
.Show();
}
}
The problem is I want to retrieve only the information of the contact that the user selected but what I get is all other contacts data is retrieved so I tried to use the selection and selectionargs parameters of CursorLoader by setting string selectionString = "id = ?"; and selectionArgs to string[] selectionStringArgs = new string[] { ID }; the ID value is retrieved from the following code :
if (cursor.MoveToFirst())
{
ID = cursor.GetString(cursor.GetColumnIndex(columnsNames[0]));
name = cursor.GetString(cursor.GetColumnIndex(columnsNames[1]));
picture = cursor.GetBlob(cursor.GetColumnIndex(columnsNames[2]));
}
//Store Contact ID
string[] selectionStringArgs = new string[] { ID };
//Phone Numbers
string[] columnsNames2 = new string[] {
ContactsContract.CommonDataKinds.Phone.Number
};
But now it returns 0 results, I couldn't find anything on the internet that applies to Xamarin android, Please help.
Thanks,
Finally I found the solution, I used the following string in the selection parameter of the cursorloader method:
string selectionString = ContactsContract.CommonDataKinds.Phone.InterfaceConsts.ContactId + "=" + ID;
and now only the selected contact numbers are retrieved.
I hope this will help someone else.
In additional information of #TMSL, I add the code afer this bloque
if (cursor.MoveToFirst())
{
ID = cursor.GetString(cursor.GetColumnIndex(columnsNames[0]));
name = cursor.GetString(cursor.GetColumnIndex(columnsNames[1]));
picture = cursor.GetBlob(cursor.GetColumnIndex(columnsNames[2]));
}
Here
selectionString = ContactsContract.CommonDataKinds.Phone.InterfaceConsts.ContactId + "=" + ID;
Then I changed the parameters used in the definition of variable Loader2, converting selectionStringArgs in null.
var loader2 = new CursorLoader(this.Activity, ContactsContract.CommonDataKinds.Phone.ContentUri, columnsNames2, selectionString, null,null);
var cursor2 = (ICursor)loader2.LoadInBackground();
I found this documentation from xamarin guides
Uri – The fully qualified name of the ContentProvider.
Projection – Specification of which columns to select for the cursor.
Selection – Similar to a SQL WHERE clause.
SelectionArgs – Parameters to be substituted in the Selection.
SortOrder – Columns to sort by.
So, the variable selectionStringArgs used in the code from #TMSAL cannot use a value like "contact_id = 2700", because the parameter of CursorLoader SelectionArgs is not a filter but not "Parameters to be substituted in the Selection"
I hope this will help someone else too.
Related
how I can update a single value for an already existing row in the db by only having a parameters that I want to add it to this attribute
here is my code for a trivial way but didnt work
public bool BuyBook(int BookId, int UserId, int BookPrice){
using (var ctx = new OnlineBooksEntities())
{
User updatedCustomer = (from c in ctx.Users
where c.UserId == UserId
select c).FirstOrDefault();
updatedCustomer.Balance = BookPrice;
ctx.SaveChanges();
}
this.DeleteBook(BookId);
return true;
}
Add an sql query to the method solves the update aim
public bool BuyBook(int BookId, int UserId, int BookPrice)
{
try
{
using (var ctx = new OnlineBooksEntities())
{
User user = ctx.Users.Where(x => x.UserId == UserId).FirstOrDefault();
BookPrice = (int)user.Balance + BookPrice;
int noOfRowUpdated =
ctx.Database.ExecuteSqlCommand("Update Users set Balance = "+BookPrice+ " where UserId ="+UserId);
}
Updating basically means changing an existing row's value. Since you mentioned EF, you can do this by retrieving the object, changing its value, and saving it back. Thus you can do something like this:
using (var db = new MyContextDB())
{
var result = db.Books.SingleOrDefault(b => b.BookPrice == bookPrice);
if (result != null)
{
result.SomeValue = "Your new value here";
db.SaveChanges();
}
}
I have a string that is data bytes base64EncodedString from iOS which is an extremely long string
let imageStr = imageData.base64EncodedString()
I am calling a .NET Method from my ios that will call a stored procedure to insert these bytes into the database.
Here is my .NET Method, I have the data type set to VarBinary
public string PostLandGradingImages(List<Images> landingCells)
{
try
{
using (connection = new SqlConnection(connectionString))
{
connection.Open();
using (SqlCommand command = new SqlCommand("PostLandGradingImages", connection))
{
command.CommandType = CommandType.StoredProcedure;
for (int i = 0; i < landingCells.Count; i++)
{
command.Parameters.Clear();
SqlParameter parameter1 = new SqlParameter("#Job_No", SqlDbType.VarChar);
parameter1.Value = landingCells[i].jobNo;
parameter1.Direction = ParameterDirection.Input;
command.Parameters.Add(parameter1);
SqlParameter parameter2 = new SqlParameter("#Image", SqlDbType.VarBinary);
parameter2.Value = landingCells[i].imageBytes;
parameter2.Direction = ParameterDirection.Input;
command.Parameters.Add(parameter2);
command.ExecuteNonQuery();
}
}
}
}
catch (Exception e)
{
return e.Message.ToString();
}
return "All Good";
}
Here is my Image Class, notice my imageBytes is defined as a byte[]:
public class Images
{
public string jobNo { get; set; }
public byte[] imageBytes { get; set; }
}
The column I am inserting into is defined as varbinary(MAX)
and here is my stored procedure:
ALTER PROCEDURE [dbo].[PostLandGradingImages]
-- Add the parameters for the stored procedure here
#Job_No varchar(MAX) = NULL,
#Image varbinary(MAX) = NULL
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;
-- Insert statements for procedure here
INSERT INTO LandGradingImages (Job_No, ImageBytes) VALUES (#Job_No, #Image)
END
My problem is nothing is getting inserted, I am getting this error in my catch:
Object reference not set to an instance of an object.
My question is, what am I doing wrong? Should I not be sending base64EncodedString or am I not setting my class right? or my db column?
I tried this:
byte[] bytes = System.Convert.FromBase64String(landingCells[i].imageBytes);
SqlParameter parameter2 = new SqlParameter("#Image", SqlDbType.VarBinary, 800000);
parameter2.Value = bytes;
parameter2.Direction = ParameterDirection.Input;
command.Parameters.Add(parameter2);
Still does not work :( and I changed imageBytes to string.
I modified your code a little to the method below. It creates a new CommandType.StoredProcedure for every Image. Also the results are returned per image, so you can see which ones failed. In your method, if you have 10 images, and the 9th failed, you would not know that.
public List<Images> PostLandGradingImages(List<Images> landingCells)
{
//create a connection to the database
using (SqlConnection connection = new SqlConnection(Common.connectionString))
{
//loop all the images
for (int i = 0; i < landingCells.Count; i++)
{
//create a fresh sql command for every Image
using (SqlCommand command = new SqlCommand("PostLandGradingImages", connection))
{
command.CommandType = CommandType.StoredProcedure;
//add the parameters
command.Parameters.Add("#Job_No", SqlDbType.VarChar).Value = landingCells[i].jobNo;
command.Parameters.Add("#Image", SqlDbType.VarBinary).Value = landingCells[i].imageBytes;
try
{
//open the connection if closed
if (connection.State == ConnectionState.Closed)
{
connection.Open();
}
//execute the stored procedure
command.ExecuteNonQuery();
//set the save result to the image
landingCells[i].saveResult = true;
}
catch (Exception ex)
{
//handle error per Image
landingCells[i].errorMessage = ex.Message;
}
}
}
}
return landingCells;
}
In order to track the save result per image I've added two properties to the Image class, but this can be done in various other ways as well.
public class Images
{
public string jobNo { get; set; }
public byte[] imageBytes { get; set; }
public bool saveResult { get; set; }
public string errorMessage { get; set; }
}
A simple test was done with the following code. None of them gave a NullReference Error. Even with both properties being null, a database entry was still made.
//create a new list with Images
List<Images> landingCells = new List<Images>();
//add some dummy data
landingCells.Add(new Images() { jobNo = null, imageBytes = null });
landingCells.Add(new Images() { jobNo = "Job 1", imageBytes = null });
landingCells.Add(new Images() { jobNo = null, imageBytes = new byte[10000] });
landingCells.Add(new Images() { jobNo = "Job 2", imageBytes = new byte[10000] });
//send the images to be saved
landingCells = PostLandGradingImages(landingCells);
//loop all the images to check the result
for (int i = 0; i < landingCells.Count; i++)
{
if (landingCells[i].saveResult == false)
{
//display the result for each failed image
Label1.Text += landingCells[i].errorMessage + "<br>";
}
}
If there is still a NullReference error, that means that your List landingCells itself is null, or an Image object within that List is null (in which case it should never have been added to the List in the first place imho). You can change the snippet easily to check for that.
Consider batching the queries in a transaction. Also you should validate the values provided to the method to make sure that you can call the stored procedure correctly.
public int PostLandGradingImages(List<Images> landingCells) {
int count = 0;
using (var connection = new SqlConnection(connectionString)) {
connection.Open();
//Transaction to batch the actions.
using (var transaction = connection.BeginTransaction()) {
foreach (var image in landingCells) {
if (valid(image)) {//validate input properties.
try {
using (SqlCommand command = connection.CreateCommand()) {
command.CommandType = CommandType.StoredProcedure;
command.CommandText = "PostLandGradingImages";
command.Parameters
.Add("#Job_No", SqlDbType.VarChar, image.jobNo.Length)
.Value = image.jobNo;
command.Parameters
.Add("#Image", SqlDbType.VarBinary, image.imageBytes.Length)
.Value = image.imageBytes;
count += command.ExecuteNonQuery();
}
} catch {
//TODO: Log error
}
}
}
if (landingCells.Count == count) {
transaction.Commit();
}
}
}
return count;
}
private bool valid(Images image) {
return image != null && String.IsNullOrWhiteSpace(image.jobNo)
&& image.imageBytes != null && image.imageBytes.Length > 0;
}
I had a method which fetched records from an sqlite database but after a while i changed it a little and made a secondary method for fetching specific records with user entered information.
I don't know why but my original method is returning null now.
CardDbAdapter:
public CarddbAdapter open2() throws SQLException {
String myPath = DB_PATH + DB_NAME;
myDatabaseR = SQLiteDatabase.openDatabase(myPath, null,
SQLiteDatabase.OPEN_READONLY);
myDatabaseW = SQLiteDatabase.openDatabase(myPath, null,
SQLiteDatabase.OPEN_READWRITE);
return this;
}
public void MyDatabaseClose() {
myDatabaseW.close();
myDatabaseR.close();
}
public ArrayList<String> getAllCardNames() {
ArrayList<String> returnedAllCardNames;
ArrayList<String> NoResults;
ArrayList<String> NoResults2;
NoResults = new ArrayList<String>();
NoResults.add("cursor is null");
NoResults2 = new ArrayList<String>();
NoResults2.add("No similar cards found.");
returnedAllCardNames = new ArrayList<String>();
/*String sqlquery_cardNames = "SELECT " + KEY_CARDNAME
+ " FROM cards WHERE card_name like '%" + passedName
+ "%' ORDER BY card_name ASC";*/
//String sqlquery_cardNames;
String sqlquery_cardNames = "SELECT DISTINCT card_name FROM cards";
Cursor c_cardNames;
c_cardNames = myDatabaseW.rawQuery(sqlquery_cardNames, null);
c_cardNames.moveToFirst();
if (c_cardNames != null) {
do {
if (c_cardNames.getCount() > 0) {
String returnedName = c_cardNames.getString(c_cardNames
.getColumnIndex(KEY_CARDNAME));
returnedAllCardNames.add(returnedName);
} else {
return NoResults2;
}
} while (c_cardNames.moveToNext());
}
return NoResults;
}
How i am using it:
CarddbAdapter yugiohDB = new CarddbAdapter(this);
yugiohDB.open2();
search_results = (ListView) findViewById(R.id.lvSearchResults);
search_results.setOnItemClickListener(this);
ArrayList<String> returnedCards_list1 = new ArrayList<String>();
returnedCards_list1.addAll(yugiohDB.getAllCardNames());
listAdapter = new ArrayAdapter<String>(SearchMode_Simple.this,
android.R.layout.simple_list_item_1, returnedCards_list1);
search_results.setAdapter(listAdapter);
yugiohDB.MyDatabaseClose();
Any help would be appreciated.
If you would like to see what this is actually supposed to do then download my app called Yugioh Library + Tools. Click the Search Library button from the main menu and then the button Simple Search. It should be displaying a list of cards from the database.
The reason i was changing it is because i'm setting up Spinners so users can choose different trading card sets to choose some which would then list all the cards from that specific set.
Fixed. I forgot to return the string array "returnedAllCardNames" which was holding the names of all process card records after the do while loop.
I'm in the process of customizing validation messages. It's working fine using the messageTemplates property. However it uses %displayName% to render the name of the property and I can't find out how to override this value ? Is there anyway to do that ?
I was wanting to do this also but I wanted to use the [DisplayName] attribute from my EF model. I couldn't find anyone that had an example of doing this so after I found a way I thought I would share.
First, I extended the metadata returned from my BreezeController:
[HttpGet]
public string Metadata()
{
// Extend metadata with extra attributes
JObject metadata = JObject.Parse(contextProvider.Metadata());
string nameSpace = metadata["schema"]["namespace"].ToString();
foreach (var entityType in metadata["schema"]["entityType"])
{
string typeName = entityType["name"].ToString();
Type t = Type.GetType(nameSpace + "." + typeName);
foreach (var prop in t.GetProperties())
{
foreach (var attr in prop.CustomAttributes)
{
string name = attr.GetType().Name;
foreach (var p in entityType["property"])
{
if (prop.Name == p["name"].ToString()) {
if (attr.AttributeType.Name == "DisplayNameAttribute") {
DisplayNameAttribute a = (DisplayNameAttribute)Attribute.GetCustomAttribute(prop, typeof(DisplayNameAttribute));
p["displayName"] = a.DisplayName;
break;
}
}
}
}
}
}
return metadata.ToString();
}
Then I added a little javascript after the metadata load to poke the display names from the augmented metadata where Breeze wants to find them.
manager.fetchMetadata().then(function (md) {
angular.forEach(md.schema.entityType, function (et) {
var etype = manager.metadataStore.getEntityType(et.name);
angular.forEach(et.property, function (p) {
var prop = etype.getProperty(p.name);
prop.displayName = p.displayName;
});
});
console.log("starting app");
angular.bootstrap($("#app"), ["app"]);
});
I'm using angular so if you aren't you can ignore the angular stuff and probably get the idea. This seems to work rather nicely. It should be pretty easy to extend this to other model attributes as well like the RegularExpression validation attribute. I'll probably work on that next.
FYI, some of this code is not optimized and could probably be refactored, prettied up a bit but I just got it working and thought I would share. If anyone has any suggestions of a better way let me know. Hopefully Breeze will allow extending the metadata in a more supported way in the future. This does seem like a bit of a hack.
This is not YET well documented but you can simply set the 'displayName' property on any dataProperty and this will override the autogenerated display name and will be used for all validation messages for this property. So
var custType = myEntityManager.metadataStore.getEntityType("Customer");
var dp = custType.getProperty("companyName");
dp.displayName = "My custom display name";
Also, please see "Customize the message templates" at the bottom of this page: Breeze Validation
Following jpcoder request for suggestions, here goes my slightly improved server portion:
JObject metadata = JObject.Parse(contextProvider.Metadata());
string nameSpace = metadata["schema"]["namespace"].ToString();
foreach (var entityType in metadata["schema"]["entityType"])
{
string typeName = entityType["name"].ToString();
Type t = Type.GetType(nameSpace + "." + typeName);
IEnumerable<JToken> metaProps = null;
if (entityType["property"].Type == JTokenType.Object)
metaProps = new[] { entityType["property"] };
else
metaProps = entityType["property"].AsEnumerable();
var props = from p in metaProps
let pname = p["name"].ToString()
let prop = t.GetProperties().SingleOrDefault(prop => prop.Name == pname)
where prop != null
from attr in prop.CustomAttributes
where attr.AttributeType.Name == "DisplayNameAttribute"
select new
{
Prop = p,
DisplayName = ((DisplayNameAttribute)Attribute.GetCustomAttribute(prop, typeof(DisplayNameAttribute))).DisplayName
};
foreach (var p in props)
p.Prop["displayName"] = p.DisplayName;
}
Looking at http://www.breezejs.com/sites/all/apidocs/files/a40_entityMetadata.js.html#l1452,
could this be improved by renaming the existing "name" value to nameOnServer (to satisfy the getDataProperty call) and inserting the DisplayNameAttribute value as "name"?
A necessary change to the server code is that, if your model classes are in different assemblies, you cannot use
Type t = Type.GetType(nameSpace + "." + typeName);
You need the namespace per type (which is in the metadata), and (I think) to use BuildManager to locate the appropriate types in different assemblies. The mapping from cSpaceOSpaceMapping might be achieved more elegantly, but I didn't have time to research the different json formatting options.
JObject metadata = JObject.Parse(UnitOfWork.Metadata());
string EFNameSpace = metadata["schema"]["namespace"].ToString();
string typeNameSpaces = metadata["schema"]["cSpaceOSpaceMapping"].ToString();
typeNameSpaces = "{" + typeNameSpaces.Replace("],[", "]|[").Replace("[", "").Replace("]", "").Replace(",", ":").Replace("|", ",") + "}";
JObject jTypeNameSpaces = JObject.Parse(typeNameSpaces);
foreach (var entityType in metadata["schema"]["entityType"])
{
string typeName = entityType["name"].ToString();
string defaultTypeNameSpace = EFNameSpace + "." + typeName;
string entityTypeNameSpace = jTypeNameSpaces[defaultTypeNameSpace].ToString();
Type t = BuildManager.GetType(entityTypeNameSpace, false);
IEnumerable<JToken> metaProps = null;
if (entityType["property"].Type == JTokenType.Object)
metaProps = new[] { entityType["property"] };
else
metaProps = entityType["property"].AsEnumerable();
var props = from p in metaProps
let pname = p["name"].ToString()
let prop = t.GetProperties().SingleOrDefault(prop => prop.Name == pname)
where prop != null
from attr in prop.CustomAttributes
where attr.AttributeType.Name == "DisplayNameAttribute"
select new
{
Prop = p,
DisplayName = ((DisplayNameAttribute)Attribute.GetCustomAttribute(prop, typeof(DisplayNameAttribute))).DisplayName
};
foreach (var p in props)
{
p.Prop["displayName"] = p.DisplayName;
}
}
JObject metadata = JObject.Parse(this._context.Metadata());
string EFNameSpace = metadata["schema"]["namespace"].ToString();
string typeNameSpaces = metadata["schema"]["cSpaceOSpaceMapping"].ToString();
typeNameSpaces = "{" + typeNameSpaces.Replace("],[", "]|[").Replace("[", "").Replace("]", "").Replace(",", ":").Replace("|", ",") + "}";
JObject jTypeNameSpaces = JObject.Parse(typeNameSpaces);
foreach (var entityType in metadata["schema"]["entityType"])
{
string typeName = entityType["name"].ToString();
string defaultTypeNameSpace = EFNameSpace + "." + typeName;
string entityTypeNameSpace = jTypeNameSpaces[defaultTypeNameSpace].ToString();
Type t = BuildManager.GetType(entityTypeNameSpace, false);
IEnumerable<JToken> metaProps = null;
if (entityType["property"].Type == JTokenType.Object)
metaProps = new[] { entityType["property"] };
else
metaProps = entityType["property"].AsEnumerable();
var props = from p in metaProps
let pname = p["name"].ToString()
let prop = t.GetProperties().SingleOrDefault(prop => prop.Name == pname)
where prop != null
from attr in prop.CustomAttributes
where attr.AttributeType.Name == "DisplayAttribute"
select new
{
Prop = p,
DisplayName = ((DisplayAttribute)Attribute.GetCustomAttribute(prop, typeof(DisplayAttribute))).Name
};
foreach (var p in props)
{
p.Prop["displayName"] = p.DisplayName;
}
}
return metadata.ToString();
Improving jpcoder's answer ...
For me most of my DisplayName changes were to replace "PascalCaseFieldName" or "camelCaseFieldName" with "Upper Case Field Name". So rather than set every property DisplayName on the server, I applied a default function to set displayName.
End result was much less EF annotation required. My TypeScript is:
manager.metadataStore.getEntityTypes().forEach(function (storeEntityType) {
if (!(storeEntityType instanceof breeze.EntityType)) {
throw new Error("loadExtendedMetadata found '" + storeEntityType
+ "' StructuralType that is not an EntityType (e.g. a ComplexType)");
}
var extEntityType = extendedMetadata.entitiesExtended.find((extendedEntityType) => {
return extendedEntityType.shortName + ":#" + extendedEntityType.nameSpace === storeEntityType.name;
});
(storeEntityType as breeze.EntityType).getProperties().forEach((storeProperty) => {
//Both NavigationProperty & DataProperty have displayName & nameOnServer properties
var storeDataProperty = <breeze.DataProperty>storeProperty;
var extProperty;
if (extEntityType) {
extProperty = extEntityType.propertiesExtented.find((extendedProperty) => {
return extendedProperty.name === storeDataProperty.nameOnServer;
});
}
//Smart default: nameOnServer "PascalCaseFieldName" or "camelCaseFieldName" converted to "Upper Case Field Name"
storeDataProperty.displayName = (extProperty && extProperty.displayName)
|| storeDataProperty.nameOnServer.replace(/^./, function (str) {
// first ensure the first character is uppercase
return str.toUpperCase();
// insert a space before all caps, remove first character (added space)
}).replace(/([A-Z])/g, " $1").substring(1);
});
});
Say my current page url has got (http://mysite/english/faq.aspx?faqid=12123&cid=4545&intcid=65456&h=man)
string excludeQuerystring = DynConfig.Item("GoogleSEOLinkSettings/ExcludeQuerystring"); //this is the list of my exclude querystring (cid,intcid,del)
querystring = HttpContext.Current.Request.Url.AbsoluteUri.Split('?')[1]; //I will get faqid=12123&cid=4545,intcid=65456
StringBuilder fullQueryString = new StringBuilder();
if (!string.IsNullOrEmpty(excludeQuerystring) && !string.IsNullOrEmpty(querystring))
{
string[] strEQ = excludeQuerystring.Split(','); //making a array of excluded querystrings
NameValueCollection navValues = HttpUtility.ParseQueryString(querystring); //getting the list of querystring in NameValueCollection
if (navValues.Count > 0)
{
string[] strQ = navValues.AllKeys;
if(strQ.Length>0)
{
}
}
}
querystring= ?+faqid=12123&h=man //here I want updated querystring which does not have any querystring which is there in my excludeQuerystring
I am confused how to get this, actually I want to make a function which will do this all.
Please suggest!!
EDIT:
I applied new code to resolve above problem, however got little stuck while converting NameValueCollection to querystring again.
protected void Page_Load(object sender, EventArgs e)
{
string querystring = string.Empty;
string excludeList = "cid,intcid,del";
if (!string.IsNullOrEmpty(excludeList))
{
string getFinalString = GetQueryString(excludeList);
getFinalString = "?" + getFinalString;
}
}
public string GetQueryString(string excludeArray)
{
string retQueryString = string.Empty;
if (excludeArray.IndexOf(",") != -1)
{
string[] strArray = excludeArray.Split(",".ToCharArray());
NameValueCollection filtered = new NameValueCollection();
filtered.Add(HttpUtility.ParseQueryString(Request.Url.Query));
if (filtered.HasKeys())
{
foreach (string strMatch in strArray)
{
filtered.Remove(strMatch);
}
retQueryString = filtered.ToString(); //Here I am not able to convert back to querystring, however there are other ways to get it like (http://leekelleher.com/2008/06/06/how-to-convert-namevaluecollection-to-a-query-string/), is there any other way to do that
}
}
return retQueryString;
}
Below is the perfect solution I got it, any comments on this.
string excludeList = "cid,intcid,del";
string getFinalString = Regex.Replace(Regex.Replace(Regex.Replace(Request.Url.Query, #"^\?", "&"), "&(" + excludeList.Replace(",", "|") + ")=[^&]*", "", RegexOptions.IgnoreCase), "^&", "?");
We cannot delete a query string directly like below:
Request.QueryString.Remove("foo")
If you do this, you will get an error - collection is read-only. So, we need to write the below code before deleting the query string.
In C#:
PropertyInfo isreadonly =
typeof(System.Collections.Specialized.NameValueCollection).GetProperty(
"IsReadOnly", BindingFlags.Instance | BindingFlags.NonPublic);
// make collection editable
isreadonly.SetValue(this.Request.QueryString, false, null);
// remove
this.Request.QueryString.Remove("foo");
Hope this will help you !!
yes there is a way to compare two arrays
var array1 = new byte[] { 1, 2, 5, 4 };
var array2 = new byte[] { 1, 2, 3, 4 };
var areEqual = array1.SequenceEqual(array2); //return boolean value True or False