I have a report that takes two parameters from a couple of text boxes that always ends up being null when passed to the stored proc. Here is the code. Also I stepped through the code and the passed in parameters have values but between passing in the params to when the proc is executed it becomes null.
protected void btnSearch_Click(object sender, EventArgs e)
{
pnlRecords.Visible = true;
ReportParameter p1 = new ReportParameter("DateStart", ReportDates1.DateStart);
ReportParameter p2 = new ReportParameter("DateEnd", ReportDates1.DateEnd);
this.ReportViewer1.LocalReport.SetParameters(new ReportParameter[] { p1, p2 });
this.ReportViewer1.LocalReport.Refresh();
}
What do you think?
I figured it out. Here is what I was missing in the .cs file
ObjectDataSource1.SelectParameters[0].DefaultValue = ReportDates1.DateStart;
ObjectDataSource1.SelectParameters[1].DefaultValue = ReportDates1.DateEnd;
ObjectDataSource1.DataBind();
Related
I am consuming .net web-service in my windows phone app.
Here I binding XML data to the controls,I am unable to display image.
C#:
eSchooltrack.ServiceReference5.EST_WebServicesSoapClient obj = new EST_WebServicesSoapClient();
obj.GetLoginUserDetailsCompleted+=new EventHandler<GetLoginUserDetailsCompletedEventArgs>(obj_GetLoginUserDetailsCompleted);
obj.GetLoginUserDetailsAsync(loginid);
}
private void obj_GetLoginUserDetailsCompleted(object sender, eSchooltrack.ServiceReference5.GetLoginUserDetailsCompletedEventArgs e)
{
XElement xmlNews = XElement.Parse(e.Result.ToString());
image1.Source=GetImage(xmlNews.Element("ProfileImage").Value);
}
depending upon the return type of the GetImage function
1) if its BitmapImage, then it should work, else the Image its returning is null
2) if its Uri do image1.Source=new BitmapImage(GetImage(xmlNews.Element("ProfileImage").Value));
3) if its a string do image1.Source=new BitmapImage(new Uri(GetImage(xmlNews.Element("ProfileImage").Value)));
I hope it helps. Do note, if still the image is not being displayed, you should check the returning value of the function != null before assigning it.
Is there an easy way to log every page hit by any user.
I am thinking this will sit within the global.asax.cs file, so that I can write to a db table the URL of the page being hit.
I've found a way to complete this problem which seems to fit my purpose.
I use the PostAuthenticateRequestHandler method, as it is called for every page hit.
I ignore any empty path and just "/" as these are not actual pages hit.
//in global.asax.cs file
private void PostAuthenticateRequestHandler(object sender, EventArgs e)
{
///...///
string extension = this.Context.Request.CurrentExecutionFilePathExtension;
string path = this.Context.Request.CurrentExecutionFilePath;
if (extension == string.Empty && path != "/")
{
PageVisitedLogModel pageVisitedLogModel = new PageVisitedLogModel
{
DateVisited = DateTime.Now,
IPAddress = this.Context.Request.UserHostAddress,
PageURL = this.Context.Request.RawUrl,
Username = this.Context.User.Identity.Name
};
//then writes to log
DataHelper.UpdatePageVisitedLog(pageVisitedLogModel);
}
}
One way to do this would be to use a global action filter, as in this example. This allows you to run some code for any action in your solution.
I've read several related posts and even posted and answer here but it seems like I was not able to solve the problem.
I have 3 Activities:
Act1 (main)
Act2
Act3
When going back and forth Act1->Act2 and Act2->Act1 I get no issues
When going Act2->Act3 I get no issues
When going Act3->Act2 I get occasional crashes with the following error: java.lang.IllegalStateException: trying to requery an already closed cursor android.database.sqlite.SQLiteCursor#.... This is a ListView cursor.
What I tried:
1. Adding stopManagingCursor(currentCursor);to the onPause() of Act2 so I stop managing the cursor when leaving Act2 to Act3
protected void onPause()
{
Log.i(getClass().getName() + ".onPause", "Hi!");
super.onPause();
saveState();
//Make sure you get rid of the cursor when leaving to another Activity
//Prevents: ...Unable to resume activity... trying to requery an already closed cursor
Cursor currentCursor = ((SimpleCursorAdapter)getListAdapter()).getCursor();
stopManagingCursor(currentCursor);
}
When returning back from Act3 to Act2 I do the following:
private void populateCompetitorsListView()
{
ListAdapter currentListAdapter = getListAdapter();
Cursor currentCursor = null;
Cursor tournamentStocksCursor = null;
if(currentListAdapter != null)
{
currentCursor = ((SimpleCursorAdapter)currentListAdapter).getCursor();
if(currentCursor != null)
{
//might be redundant, not sure
stopManagingCursor(currentCursor);
// Get all of the stocks from the database and create the item list
tournamentStocksCursor = mDbHelper.retrieveTrounamentStocks(mTournamentRowId);
((SimpleCursorAdapter)currentListAdapter).changeCursor(tournamentStocksCursor);
}
else
{
tournamentStocksCursor = mDbHelper.retrieveTrounamentStocks(mTournamentRowId);
}
}
else
{
tournamentStocksCursor = mDbHelper.retrieveTrounamentStocks(mTournamentRowId);
}
startManagingCursor(tournamentStocksCursor);
//Create an array to specify the fields we want to display in the list (only name)
String[] from = new String[] {StournamentConstants.TblStocks.COLUMN_NAME, StournamentConstants.TblTournamentsStocks.COLUMN_SCORE};
// and an array of the fields we want to bind those fields to (in this case just name)
int[] to = new int[]{R.id.competitor_name, R.id.competitor_score};
// Now create an array adapter and set it to display using our row
SimpleCursorAdapter tournamentStocks = new SimpleCursorAdapter(this, R.layout.competitor_row, tournamentStocksCursor, from, to);
//tournamentStocks.convertToString(tournamentStocksCursor);
setListAdapter(tournamentStocks);
}
So I make sure I invalidate the cursor and use a different one. I found out that when I go Act3->Act2 the system will sometimes use the same cursor for the List View and sometimes it will have a different one.
This is hard to debug and I was never able to catch a crashing system while debugging. I suspect this has to do with the time it takes to debug (long) and the time it takes to run the app (much shorter, no pause due to breakpoints).
In Act2 I use the following Intent and expect no result:
protected void onListItemClick(ListView l, View v, int position, long id)
{
super.onListItemClick(l, v, position, id);
Intent intent = new Intent(this, ActivityCompetitorDetails.class);
intent.putExtra(StournamentConstants.App.competitorId, id);
intent.putExtra(StournamentConstants.App.tournamentId, mTournamentRowId);
startActivity(intent);
}
Moving Act1->Act2 Act2->Act1 never gives me trouble. There I use startActivityForResult(intent, ACTIVITY_EDIT); and I am not sure - could this be the source of my trouble?
I would be grateful if anyone could shed some light on this subject. I am interested in learning some more about this subject.
Thanks,D.
I call this a 2 dimensional problem: two things were responsible for this crash:
1. I used startManagingCursor(mItemCursor); where I shouldn't have.
2. I forgot to initCursorAdapter() (for autocomplete) on onResume()
//#SuppressWarnings("deprecation")
private void initCursorAdapter()
{
mItemCursor = mDbHelper.getCompetitorsCursor("");
startManagingCursor(mItemCursor); //<= this is bad!
mCursorAdapter = new CompetitorAdapter(getApplicationContext(), mItemCursor);
initItemFilter();
}
Now it seems to work fine. I hope so...
Put this it may work for you:
#Override
protected void onRestart() {
// TODO Auto-generated method stub
super.onRestart();
orderCursor.requery();
}
This also works
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.HONEYCOMB) {
startManagingCursor(Cursor);
}
I have a text box whose Text property has a TwoWay MultiBinding with UpdateSourceTrigger set to PropertyChanged. The first Binding is to a dependency property (Value) which has a PropertyChangedCallBack function that rounds the value to one decimal place.
The purpose of the text box is to perform the rounding as the user types rather than when the text box loses focus, hence why UpdateSourceTrigger is set to PropertyChanged.
The problem I am having is that if text is entered that does NOT result in Value changing, the Text property and Value become out of sync. Only if the rounding operation causes Value to change does Text get updated on the fly. E.g., if Text and Value are both 123.4 and the user types 1 after this, Value is rounded to the same value (123.4), but Text shows 123.41. However, if 9 is then typed after the 4, Value is rounded up to 123.5. And because of this actual change, Text is then updated to the same (123.5).
Is there any way of forcing a text box to update from its source even when the source hasn't changed since the last trigger? I have tried using BindingExpressionBase.UpdateTarget() but this only works when UpdateSourceTrigger is set to Explicit, which can't be used as Value no longer gets updated prior to a suitable time where UpdateTarget could be called (such as a TextInput handler). I have tried other methods such as explicitly updating the Text value from the bound Value, forcing an actual change to Value temporarily to invoke an update, but these "hacks" either don't work or cause other problems.
Any help would be greatly appreciated.
The code is below.
XAML snippet
<TextBox>
<TextBox.Text>
<MultiBinding Converter="{local:NumberFormatConverter}"
UpdateSourceTrigger="Explicit"
Mode="TwoWay">
<Binding Path="Value"
RelativeSource="{RelativeSource AncestorType={x:Type Window}}"
Mode="TwoWay" />
</MultiBinding>
</TextBox.Text>
</TextBox>
C# snippet
public static readonly DependencyProperty ValueProperty =
DependencyProperty.Register(
"Value", typeof(decimal), typeof(MainWindow),
new FrameworkPropertyMetadata(0m,
new PropertyChangedCallback(OnValueChanged)));
private static void OnValueChanged(DependencyObject obj, DependencyPropertyChangedEventArgs args)
{
obj.SetValue(ValueProperty, Math.Round((decimal)args.NewValue, 1));
}
Converter class required
public class NumberFormatConverter : MarkupExtension, IMultiValueConverter
{
public static NumberFormatConverter Instance { private set; get; }
static NumberFormatConverter()
{
Instance = new NumberFormatConverter();
}
public override object ProvideValue(IServiceProvider serviceProvider_)
{
return Instance;
}
#region Implementation of IMultiValueConverter
public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
{
return values[0].ToString();
}
public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture)
{
var result = 0m;
if (value != null)
{
decimal.TryParse(value.ToString(), out result);
}
return new object[] { result };
}
#endregion
}
I did a little digging on the Internet, and it turns out this was broken in WPF 4. Someone with an almost-identical problem to me posted here:
http://www.go4answers.com/Example/textbox-shows-old-value-being-coerced-137799.aspx
'Answer 8' states this was broken in WPF 4 and suggests a solution, which is to actually use UpdateSourceTrigger="Explicit" but to handle the TextChanged event and call BindingExpression.UpdateSource() to force changes in the text box to be reflected in the underlying value as if UpdateSourceTrigger="PropertyChanged", as per this post:
Coerce a WPF TextBox not working anymore in .NET 4.0
I implemented this, but lo and behold there were further side effects, in particular that every keystroke caused the caret to jump to the start of the text box due to updating the source and raising a PropertyChanged event. And also, any leading or trailing zeros or decimal places entered with the intention of entering further digits would get wiped out immediately. So, a simple condition to check the parsed decimal value of the text box versus the underlying value resolved this.
The following event handler is all that was needed:
private void TextBox_TextChanged(object sender, TextChangedEventArgs e)
{
var tb = (TextBox)e.Source;
MultiBindingExpression binding = BindingOperations.GetMultiBindingExpression(tb, TextBox.TextProperty);
decimal result = 0m;
decimal.TryParse(tb.Text, out result);
if ((decimal)GetValue(ValueProperty) != result && binding != null)
{
int caretIndex = tb.CaretIndex;
binding.UpdateSource();
tb.CaretIndex = caretIndex;
}
}
I need to bind a username to a DomainDataSource QueryParameter. My understanding is that the following does not work:
<RiaControls:DomainDataSource x:Name="MyData" LoadSize="20" QueryName="GetStockByCompany" AutoLoad="True">
<RiaControls:DomainDataSource.DomainContext>
<ds:InventoryDomainContext />
</RiaControls:DomainDataSource.DomainContext>
<RiaControls:DomainDataSource.QueryParameters>
<riadata:Parameter
ParameterName="userName"
Value="{Binding Path=User.Name}" />
</RiaControls:DomainDataSource.QueryParameters>
</RiaControls:DomainDataSource>
I am not opposed to using the C# code-behind part of the page, but I'm not sure what event to put this in.
So far I've tried this:
public Inventory()
{
InitializeComponent();
Loaded += Inventory_Loaded;
}
private void Inventory_Loaded(object sender, RoutedEventArgs e)
{
this.MyData.QueryParameters.Add(new Parameter { ParameterName = "userID", Value = RiaContext.Current.User.Name});
}
But since InitializeComponent() fires first, and loades the data, which causes the DomainDataSource to bomb due to the Query not having any parameters to run... it didn't work.
Next I tried this...
[xaml file]
<RiaControls:DomainDataSource x:Name="MyData" LoadSize="20" QueryName="GetStockByCompany" AutoLoad="True" LoadingData="MyData_LoadingData">
[cs file]
private void MyData_LoadingData(object sender, LoadingDataEventArgs e)
{
this.MyData.QueryParameters.Add(new Parameter { ParameterName = "userID", Value = RiaContext.Current.User.Name});
}
Unfortunately, the event never fired. I'm not sure why.
I even tried this:
[xaml file]
<RiaControls:DomainDataSource x:Name="MyData" LoadSize="20" QueryName="GetStockByCompany" AutoLoad="True" LoadedData="MyData_LoadedData">
[cs file]
private void MyData_LoadedData(object sender, LoadedDataEventArgs e)
{
this.MyData.QueryParameters.Add(new Parameter { ParameterName = "userID", Value = RiaContext.Current.User.Name});
}
But that was just dumb.
I'm at a loss. How do I load this query, with the parameter, as the page loads?
Thanks!
Hmmm I not a specific answer to your problem but I may know a way to avoid the situation entirely.
I noticed you have a method named "GetStockByCompany" that accept the currently logged in user as a parameter...
You can completely remove the need for the parameter and instead on your server side query for "GetStockByCompany" use this in your "Where" part:
this.ServiceContext.User.Identity.Name
Ex - Getting all the albums for the currently logged in user:
album = this.Context.AlbumSet
.Where(n => n.AlbumId == AlbumId)
.Where(n => n.aspnet_Users.UserName == this.ServiceContext.User.Identity.Name)
.First();
Binding the query parameter works, the typical usage is that you bind it directly to controls.
To set the parameter in code behind, give the parameter a name and set the value property. There's no need to add the whole parameter in code behind.