I try to do a things very easy but it doesn't works...
I want my textbox accepts only numerics characters. I found a lot of parts of code on internet but none working...
I try this code for example :
private void TxtNumPoste_TextChanged(object sender, KeyPressEventArgs e)
{
if (!char.IsControl(e.KeyChar) && !char.IsDigit(e.KeyChar) &&
(e.KeyChar != '.'))
{
e.Handled = true;
}
// only allow one decimal point
if ((e.KeyChar == '.') && ((sender as TextBox).Text.IndexOf('.') > -1))
{
e.Handled = true;
}
}
TxtNumPoste is the name of my TextBox.
Is a person sees an error ?
Thanks for your help.
Related
I wrote the following code to look through the last 100 candlesticks and draw a rectangle around a bullish engulfing candlestick patterns. I hope extend it for bearish engulfing pattern too. I don't know why, but the rectangles don't draw. Please take a look at the code below
bool isBullishEngulfing(int current) {
if((iClose(_Symbol,0,current) > iOpen(_Symbol,0,current)) && (iClose(_Symbol,0,current + 1) < iOpen(_Symbol,0,current + 1)) &&
(iOpen(_Symbol,0,current) < iClose(_Symbol,0,current + 1)) && (iClose(_Symbol,0,current) > iOpen(_Symbol,0,current + 1)))
return true;
return false;
}
void showRectangles() {
for (int i=100;i<=1;i--) {
if(isBullishEngulfing(i)) {
drawBullRectangle(i,iHigh(_Symbol,0,i),iLow(_Symbol,0,i));
}
}
}
bool drawBullRectangle(int candleInt,const double top,const double bottom)
{
const datetime starts=iTime(_Symbol,0,candleInt);
const datetime ends=starts+PeriodSeconds()*Numbars; //Numbars shows how long the rectangle should draw
const string name=prefix+"_"+(candleInt>0?"DEMAND":"SUPPLY")+"_"+TimeToString(starts);
if(!ObjectCreate(0,name,OBJ_RECTANGLE,0,0,0,0,0))
{
printf("%i %s: failed to create %s. error=%d",__LINE__,__FILE__,name,_LastError);
return false;
}
ObjectSetInteger(0,name,OBJPROP_TIME1,starts);
ObjectSetInteger(0,name,OBJPROP_TIME2,ends);
ObjectSetDouble(0,name,OBJPROP_PRICE1,top);
ObjectSetDouble(0,name,OBJPROP_PRICE2,bottom);
ObjectSetInteger(0,name,OBJPROP_COLOR, clrAqua);
ObjectSetInteger(0,name,OBJPROP_STYLE, STYLE_SOLID);
ObjectSetInteger(0,name,OBJPROP_WIDTH,1);
ObjectSetInteger(0,name,OBJPROP_FILL, true);
return true;
}
void OnDeinit(const int reason){ObjectsDeleteAll(0,prefix);}
void OnTick()
{
if(!isNewBar())
return; //not necessary but waste of time to check every second
showRectangles();
}
bool isNewBar()
{
static datetime lastbar;
datetime curbar = (datetime)SeriesInfoInteger(_Symbol,_Period,SERIES_LASTBAR_DATE);
if(lastbar != curbar)
{
lastbar = curbar;
return true;
}
return false;
}
I would appreciate help to resolve this.
The error is mainly in the loop, it should be for (int i=100;i>=1;i--)
The other "possible" error is in the logic of theisBullishEngulfing() function.
Usually, the Close of the previous bar is equal to the Open of the current bar, so the following condition doesn't get fulfilled(most of the time)
iOpen(_Symbol,0,current) < iClose(_Symbol,0,current + 1)
(So, I suggest to remove this line, but this is just a suggestion, note there are occasions that your condition get fulfilled as well)
I have a java app that runs an infinite while loop. When I click run on eclipse it seems to be reverting to old code that I have changed. The thing is, when I build it updates at random times. The latest time I added System.exit(). I changed the code and it still exits. I have also tried this program in C#. I feel that I am somehow confusing the language runtime with the infinite while loop. The program works on a series of changing boolean values. The main action I am looking at the erratic behavior (this was what was happening before I added System.exit()) is in a method that iterates pixels in a BufferedImage. I am running Ubuntu 14.10. I have tried making a new project and pasting the same code (could it be invisible chars somehow?) I am very confused and would be happy if someone could help.
while(true){
if (bool1 && !exe.isSeparate(image))
{
// change boolean values
// did run System.exit(0)
}
if (bool2 && !exe.isSeparate(image))
{
// change boolean values
// did run System.exit(0)
}
}
boolean isSeparate(BufferedImage image)
{
int x = touchingX;
boolean first = false, second = false, third = false;
int startAt = this.getYStart(image);
for (int y = startAt; y < startAt + 150; y++)
{
Color pixel = new Color(image.getRGB(x, y));
if (!(pixel.getRed() == 255 && pixel.getGreen() == 255 && pixel.getBlue() == 255)
&& !(pixel.getRed() == 0 && pixel.getGreen() == 68 && pixel.getBlue() == 125))
{
if (!first)
{
first = true;
}
if (first && second && !third)
{
third = true;
}
}
else
{
if (first && !second)
{
second = true;
}
}
}
if (first && second && third)
{
return true;
}
return false;
}
I have answered my question. Ironically, it was a logic error.
I'm using select2 with Bootstrap 3.
Now I would like to know whether it is possible to display all optgroup items if the search matches the optgroup name while still being able to search for items as well. If this is possible, how can I do it?
The above answers don't seem to work out of the box with Select2 4.0 so if you're hunting for that, check this out: https://github.com/select2/select2/issues/3034
(Use the function like this: $("#example").select2({matcher: modelMatcher});)
function modelMatcher (params, data) {
data.parentText = data.parentText || "";
// Always return the object if there is nothing to compare
if ($.trim(params.term) === '') {
return data;
}
// Do a recursive check for options with children
if (data.children && data.children.length > 0) {
// Clone the data object if there are children
// This is required as we modify the object to remove any non-matches
var match = $.extend(true, {}, data);
// Check each child of the option
for (var c = data.children.length - 1; c >= 0; c--) {
var child = data.children[c];
child.parentText += data.parentText + " " + data.text;
var matches = modelMatcher(params, child);
// If there wasn't a match, remove the object in the array
if (matches == null) {
match.children.splice(c, 1);
}
}
// If any children matched, return the new object
if (match.children.length > 0) {
return match;
}
// If there were no matching children, check just the plain object
return modelMatcher(params, match);
}
// If the typed-in term matches the text of this term, or the text from any
// parent term, then it's a match.
var original = (data.parentText + ' ' + data.text).toUpperCase();
var term = params.term.toUpperCase();
// Check if the text contains the term
if (original.indexOf(term) > -1) {
return data;
}
// If it doesn't contain the term, don't return anything
return null;
}
Actually found the solution by modifying the matcher opt
$("#myselect").select2({
matcher: function(term, text, opt){
return text.toUpperCase().indexOf(term.toUpperCase())>=0 || opt.parent("optgroup").attr("label").toUpperCase().indexOf(term.toUpperCase())>=0
}
});
Under the premise that the label attribute has been set in each optgroup.
Found a solution from select2/issues/3034
Tested with select2 v.4
$("select").select2({
matcher(params, data) {
const originalMatcher = $.fn.select2.defaults.defaults.matcher;
const result = originalMatcher(params, data);
if (
result &&
data.children &&
result.children &&
data.children.length
) {
if (
data.children.length !== result.children.length &&
data.text.toLowerCase().includes(params.term.toLowerCase())
) {
result.children = data.children;
}
return result;
}
return null;
},
});
A few minor changes to people suggested code, less repetitive and copes when there are no parent optgroups:
$('select').select2({
matcher: function(term, text, opt){
var matcher = opt.parent('select').select2.defaults.matcher;
return matcher(term, text) || (opt.parent('optgroup').length && matcher(term, opt.parent('optgroup').attr("label")));
}
});
Say I have an SVG element, as follows. How do I add an onClickListener?
solved, see below.
I'm going to guess you're meaning a FieldChangeListener rather than an OnClickListener (wrong platform ;). SVGImage isn't part of the RIM-developed objects, so unfortunately you won't be able to. Anything that is going to be able to have a FieldChangeListner has to be a subclass of the net.rim.device.api.ui.Field class.
Just in case someone's interested in how it's done...
try {
InputStream inputStream = getClass().getResourceAsStream("/svg/sphere1.svg");
_image = (SVGImage)SVGImage.createImage(inputStream, null);
_animator = SVGAnimator.createAnimator(_image, "net.rim.device.api.ui.Field");
_document = _image.getDocument();
_svg123 = (SVGElement)_document.getElementById("123");
}
catch (IOException e) { e.printStackTrace(); }
Field _svgField = (Field)_animator.getTargetComponent();
_svgField.setBackground(blackBackground);
add(_svgField);
_svg123.addEventListener("click", this, false);
_svg123.addEventListener("DOMFocusIn", this, false);
_svg123.addEventListener("DOMFocusOut", this, false);
}
public void handleEvent(Event evt) {
if( _svg123 == evt.getCurrentTarget() && evt.getType() == "click" ){ Dialog.alert("You clicked 123"); }
if( _svg123 == evt.getCurrentTarget() && evt.getType() == "DOMFocusIn" ) { ((SVGElement) _document.getElementById("outStroke123")).setTrait("fill", "#FF0000"); }
if( _svg123 == evt.getCurrentTarget() && evt.getType() == "DOMFocusOut" ) { ((SVGElement) _document.getElementById("outStroke123")).setTrait("fill", "#2F4F75"); }
}
I have a textbox where I always want data in $###,###,###,##0.00 format (like $25.00 ). Now on typing some data i want to get the same format . For ex if i type 25 it should convert to $25.00 and if i input 'as23afs' (characters) it should convert to $0.00 . How can i do it? Please suggest a solution. If I can make use of Regular expressions how can i do it?
Take a look at those plugins:
http://digitalbush.com/projects/masked-input-plugin/
http://www.meiocodigo.com/projects/meiomask/
http://www.decorplanit.com/plugin/
i was facing the same issue now i fixed that by set the textbox custom Format:
use this code in KeyPress Event :
private void yourtextbox_KeyPress(object sender, KeyPressEventArgs e)
{
if (e.Handled = !char.IsDigit(e.KeyChar) && e.KeyChar != (char)8 && e.KeyChar != ',' && e.KeyChar != '$') // 8 is back space
{
if (e.KeyChar == (char)13) // 13 is Enter
{
yourtextbox.Text = string.Format("${0:#,##0.00}", double.Parse(yourtextbox.Text));
}
}
}
Now your Textbox accept only numbers and ',' and '$'
now if you input 'as23afs' (characters) it should convert to $0.00 .
use this code :
yourtextbox.Text = double.Parse("0").ToString("N2");//"N2" to show 00 after ','.
i think that's all i hope this code help everyone looking for currency Format in textbox .
so the complete code should be like that :
public Form1()
{
InitializeComponent();
yourtextbox.Text = double.Parse("0").ToString("N2");//"N2" to show 00 after ','
}
private void yourtextbox_KeyPress(object sender, KeyPressEventArgs e)
{
if (e.Handled = !char.IsDigit(e.KeyChar) && e.KeyChar != (char)8 && e.KeyChar != ',' && e.KeyChar != '$') // 8 is back space
{
if (e.KeyChar == (char)13) // 13 is Enter
{
yourtextbox.Text = string.Format("${0:#,##0.00}", double.Parse(yourtextbox.Text));
}
}
}