Questions on UI for ASP.NET AJAX Forum

5 answers

144 views

Hi there.

What I'm trying to achieve here is to get a dynamic TabStrip to which I can create new tabs.
Each of those tabs include a pageview.
Each of those pageview embeds a usercontrol.
Those usercontrols are consisting in a RadDockLayout + RadDockZone + a Button to create new docks on the current selected tab/pageview.

So far nothing that sounds too fancy or hard to create. The current code works fine:

Here's my "Default.aspx". You can notice that I'm not currently using the RadAjaxManager to Ajaxify my controls.
In this page I'm creating my dynamic TabStrip control that let you create and close tabs via a close button.

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head runat="server">

<title></title>

<link href="css/lines.css" rel="stylesheet" type="text/css" />

<link href="css/colorpicker.css" rel="stylesheet" type="text/css" />

<telerik:RadStyleSheetManager ID="RadStyleSheetManager1" runat="server" />

</head>

<body>

<form id="form1" runat="server">

<telerik:RadScriptManager ID="RadScriptManager1" runat="server">

<Scripts>

<asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.Core.js" />

<asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.jQuery.js" />

<asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.jQueryInclude.js" />

</Scripts>

</telerik:RadScriptManager>

<script src="js/colorpicker.js" type="text/javascript"></script>

<telerik:RadCodeBlock ID="rcbLineManager" runat="server">

<script type="text/javascript">

function closeTab(tabText) {

try {

var tabStrip = $find("<%= rtsLines.ClientID %>");

var multiPage = $find("<%= mpLines.ClientID %>");

var ajaxManager = $find("<%= RadAjaxManager1.ClientID %>");

var tab = tabStrip.findTabByText(tabText);

var pageView = tab.get_pageView();

var tabToSelect = tab.get_nextTab();

if (!tabToSelect)

tabToSelect = tab.get_previousTab();

tabStrip.get_tabs().remove(tab);

multiPage.get_pageViews().remove(pageView);

if (ajaxManager != null) {

ajaxManager.ajaxRequest("CloseTab|" + tabText);

} else {

console.log("ajaxManager is null");

}

if (tabToSelect)

tabToSelect.set_selected(true);

}

catch (err) {

console.log(err.message);

}

</script>

</telerik:RadCodeBlock>

<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server" OnAjaxRequest="RadAjaxManager1_AjaxRequest">

<%-- <AjaxSettings>

<telerik:AjaxSetting AjaxControlID="rbtAddLine">

<UpdatedControls>

<telerik:AjaxUpdatedControl ControlID="rtsLines"/>

<telerik:AjaxUpdatedControl ControlID="mpLines" LoadingPanelID="ralpLines" />

</UpdatedControls>

</telerik:AjaxSetting>

</AjaxSettings>--%>

</telerik:RadAjaxManager>

<telerik:RadButton ID="rbtAddLine" runat="server" OnClick="rbtAddLine_Clicked" Text="New">

</telerik:RadButton>

<div>

<telerik:RadTabStrip ID="rtsLines" runat="server" CssClass="rtsLines" MultiPageID="mpLines"

OnTabCreated="rtsLines_TabCreated">

</telerik:RadTabStrip>

<telerik:RadMultiPage ID="mpLines" runat="server" CssClass="multiPageViewContent"

Height="400" Width="900" OnPageViewCreated="mpLines_PageViewCreated">

</telerik:RadMultiPage>

<telerik:RadAjaxLoadingPanel ID="ralpLines" runat="server">

</telerik:RadAjaxLoadingPanel>

</div>

</form>

</body>

</html>

Here's the code behind:

using System;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Data;

using System.Configuration;

using System.Web.Security;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

using Telerik.Web.UI;

using System.Collections.Generic;

using TabsStrips.usercontrol;

public partial class Default : System.Web.UI.Page

{

private static int _id = 0;

private string tabName;

protected void Page_Load(object sender, EventArgs e)

{

}

protected void rbtAddLine_Clicked(object sender, EventArgs e)

{

try

{

tabName = "New_" + _id++;

rtsLines.Tabs.Add(new RadTab(tabName));

var pv = new RadPageView();

pv.ID = "pv" + tabName;

pv.Height = Unit.Pixel(200);

pv.Width = Unit.Pixel(800);

mpLines.PageViews.Add(pv);

}

catch (Exception ex)

{

throw;

}

protected void rtsLines_TabCreated(object sender, RadTabStripEventArgs e)

{

try

{

HtmlImage img1 = new HtmlImage();

img1.Src = "~/images/close.gif";

img1.Attributes.Add("class", "closeTab");

Label lbl = new Label();

lbl.Text = e.Tab.Text;

img1.Attributes.Add("onclick", "closeTab('" + e.Tab.Text + "');");

e.Tab.Controls.Add(img1);

e.Tab.Controls.Add(lbl);

}

catch (Exception ex)

{

throw;

}

protected void mpLines_PageViewCreated(object sender, RadMultiPageEventArgs e)

{

UserControl LineBuilder = (UserControl)this.LoadControl("usercontrol/LineBuilderV2.ascx");

LineBuilder.ID = "LineBuilder_" + e.PageView.UniqueID;

e.PageView.Controls.Add(LineBuilder);

}

protected void RadAjaxManager1_AjaxRequest(object sender, AjaxRequestEventArgs e)

{

try

{

var command = e.Argument.Split('|')[0];

var args = e.Argument.Split('|').Length > 0 ? e.Argument.Split('|')[1] : null;

switch (command)

{

case "CloseTab":

var tab = rtsLines.FindTabByText(args, true);

var pv = tab.PageView;

rtsLines.Tabs.Remove(tab);

mpLines.PageViews.Remove(pv);

break;

default:

break;

}

catch (Exception ex)

{

throw;

}

Here's now the content of my usercontrol embedding the RadDockZone:
Note that I'm using a "hidden" but still "visible" asp update panel to create my new docks, as described in most of the Telerik online examples

<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="LineBuilderV2.ascx.cs"

Inherits="TabsStrips.usercontrol.LineBuilderV2" %>

<telerik:RadAjaxLoadingPanel ID="RalpLineBuilder" runat="server" MinDisplayTime="500">

</telerik:RadAjaxLoadingPanel>

<telerik:RadScriptBlock ID="rsbLine" runat="server">

<script type="text/javascript">

$(document).ready(function() {

var elt = $('#<%= PCommands.ClientID %>');

var stops = $('#<%= RdzLineBuilder.ClientID %>');

$(elt).find(".colorpicker2").ColorPicker({

color: '#0000ff',

onShow: function(colpkr) {

$(colpkr).fadeIn(500);

return false;

},

onHide: function(colpkr) {

$(colpkr).fadeOut(500);

return false;

},

onChange: function(hsb, hex, rgb) {

$(elt).find(".colorpicker2 div").css('backgroundColor', '#' + hex);

$(stops).find(".<%= RdzLineBuilder.ClientID %>").css('backgroundColor', '#' + hex);

}

});

var currentLoadingPanel = null;

var currentUpdatedControl = null;

Sys.WebForms.PageRequestManager.getInstance().add_beginRequest(BeginRequestHandler);

Sys.WebForms.PageRequestManager.getInstance().add_endRequest(EndRequestHandler);

function BeginRequestHandler(sender, args) {

currentLoadingPanel = $find("<%= RalpLineBuilder.ClientID %>");

currentUpdatedControl = $find("<%= PLineBuilder.ClientID %>");

currentLoadingPanel.show(currentUpdatedControl);

}

function EndRequestHandler(sender, args) {

if (currentLoadingPanel != null)

currentLoadingPanel.hide(currentUpdatedControl);

currentUpdatedControl = null;

currentLoadingPanel = null;

}

});

</script>

</telerik:RadScriptBlock>

<asp:Button ID="ButtonAddStop" runat="server" OnClick="ButtonAddStop_Click" Text="Add Stop" />

<asp:UpdatePanel ID="UpLineBuilder" runat="server" ChildrenAsTriggers="false" UpdateMode="Conditional" >

<ContentTemplate>

<asp:Panel ID="PLineBuilder" runat="server" Width="800px">

<telerik:RadDockLayout ID="RdlLineBuilder" runat="server" OnSaveDockLayout="RdlLineBuilder_SaveDockLayout"

OnLoadDockLayout="RdlLineBuilder_LoadDockLayout">

<telerik:RadDockZone ID="RdzLineBuilder" runat="server" Width="100%" Height="200px"

Orientation="Horizontal">

</telerik:RadDockZone>

</telerik:RadDockLayout>

</asp:Panel>

</ContentTemplate>

<Triggers>

<asp:AsyncPostBackTrigger ControlID="ButtonAddStop" EventName="Click" />

</Triggers>

</asp:UpdatePanel>

<asp:Panel ID="PCommands" runat="server">

<div class="colorpicker2">

<div>

</div>

</asp:Panel>

<div style="width: 0px; height: 0px; overflow: hidden; position: absolute; left: -10000px;">

Hidden UpdatePanel, which is used to help with saving state when minimizing, moving

and closing docks. This way the docks state is saved faster (no need to update the

docking zones).

<asp:UpdatePanel ID="UpLineBuilderHidden" runat="server">

</asp:UpdatePanel>

</div>

Here's the code behind:

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

using Telerik.Web.UI;

using System.Web.UI.HtmlControls;

namespace TabsStrips.usercontrol

{

public partial class LineBuilderV2 : System.Web.UI.UserControl

{

private string _suffixID;

private List<DockState> CurrentDockStates

{

get

{

//Store the info about the added docks in the session. For real life

// applications we recommend using database or other storage medium

// for persisting this information.

List<DockState> _currentDockStates = (List<DockState>)Session["CurrentDockStates_" + this.ID];

if (Object.Equals(_currentDockStates, null))

{

_currentDockStates = new List<DockState>();

Session["CurrentDockStates_" + this.ID] = _currentDockStates;

}

return _currentDockStates;

}

set

{

Session["CurrentDockStates_" + this.ID] = value;

}

protected void Page_Load(object sender, EventArgs e)

{

_suffixID = this.ClientID.Replace("-", "").Replace("$", "");

this.Page.LoadComplete += new EventHandler(Page_LoadComplete);

}

void Page_LoadComplete(object sender, EventArgs e)

{

ScriptManager.RegisterStartupScript(this, this.GetType(), "LineBuilder_" + _suffixID,

@"var currentLoadingPanel = null;

var currentUpdatedControl = null;

Sys.WebForms.PageRequestManager.getInstance().add_beginRequest(BeginRequestHandler);

Sys.WebForms.PageRequestManager.getInstance().add_endRequest(EndRequestHandler);

function BeginRequestHandler(sender, args) {

currentLoadingPanel = $('#" + RalpLineBuilder.ClientID + @"');

currentUpdatedControl = $('#" + PLineBuilder.ClientID + @"');

currentLoadingPanel.show(currentUpdatedControl);

}

function EndRequestHandler(sender, args) {

if (currentLoadingPanel != null)

currentLoadingPanel.hide(currentUpdatedControl);

currentUpdatedControl = null;

currentLoadingPanel = null;

}", true);

}

protected void Page_Init(object sender, EventArgs e)

{

//Recreate the docks in order to ensure their proper operation

for (int i = 0; i < CurrentDockStates.Count; i++)

{

RadDock dock = CreateRadDockFromState(CurrentDockStates[i]);

//We will just add the RadDock control to the RadDockLayout.

// You could use any other control for that purpose, just ensure

// that it is inside the RadDockLayout control.

// The RadDockLayout control will automatically move the RadDock

// controls to their corresponding zone in the LoadDockLayout

// event (see below).

RdlLineBuilder.Controls.Add(dock);

//We want to save the dock state every time a dock is moved.

CreateSaveStateTrigger(dock);

if (CurrentDockStates[i].Closed == true)

{

dock.Visible = false;

}

protected void RdlLineBuilder_LoadDockLayout(object sender, DockLayoutEventArgs e)

{

//Populate the event args with the state information. The RadDockLayout control

// will automatically move the docks according that information.

foreach (DockState state in CurrentDockStates)

{

e.Positions[state.UniqueName] = state.DockZoneID;

e.Indices[state.UniqueName] = state.Index;

}

protected void RdlLineBuilder_SaveDockLayout(object sender, DockLayoutEventArgs e)

{

//Save the dock state in the session. This will enable us

// to recreate the dock in the next Page_Init.

CurrentDockStates = RdlLineBuilder.GetRegisteredDocksState();

}

private RadDock CreateRadDockFromState(DockState state)

{

HtmlGenericControl div = new HtmlGenericControl("div");

div.Attributes.Add("class", RdzLineBuilder.ClientID);

div.Style.Add("width", "100px");

div.Style.Add("height", "100px");

div.Style.Add("background-color", "White");

RadDock dock = new RadDock();

dock.DockMode = DockMode.Docked;

dock.ID = string.Format("RadDock{0}", state.UniqueName);

dock.ApplyState(state);

dock.ContentContainer.Controls.Add(div);

dock.Command += new DockCommandEventHandler(dock_Command);

dock.Commands.Add(new DockCloseCommand());

return dock;

}

void dock_Command(object sender, DockCommandEventArgs e)

{

if (e.Command.Name == "Close")

{

ScriptManager.RegisterStartupScript(

UpLineBuilderHidden,

this.GetType(),

"RemoveDock",

string.Format(@"function _removeDock() {{

Sys.Application.remove_load(_removeDock);

$find('{0}').undock();

$get('{1}').appendChild($get('{0}'));

$find('{0}').doPostBack('DockPositionChanged');

}};

Sys.Application.add_load(_removeDock);", ((RadDock)sender).ClientID, UpLineBuilderHidden.ClientID),

true);

CurrentDockStates.Remove(((RadDock)sender).GetState());

}

private RadDock CreateRadDock()

{

HtmlGenericControl div = new HtmlGenericControl("div");

div.Attributes.Add("class", RdzLineBuilder.ClientID);

div.Style.Add("width", "100px");

div.Style.Add("height", "100px");

div.Style.Add("background-color", "White");

RadDock dock = new RadDock();

dock.DockMode = DockMode.Docked;

dock.UniqueName = Guid.NewGuid().ToString().Replace("-", "a");

dock.ID = string.Format("RadDock{0}", dock.UniqueName);

dock.Title = "Stop";

dock.Text = string.Format("Added at {0}\n{1}", DateTime.Now, dock.UniqueName);

dock.ContentContainer.Controls.Add(div);

dock.Width = Unit.Pixel(220);

dock.Height = Unit.Pixel(200);

dock.Command += new DockCommandEventHandler(dock_Command);

dock.Commands.Add(new DockCloseCommand());

return dock;

}

private void CreateSaveStateTrigger(RadDock dock)

{

//Ensure that the RadDock control will initiate postback

// when its position changes on the client or any of the commands is clicked.

//Using the trigger we will "ajaxify" that postback.

dock.AutoPostBack = true;

dock.CommandsAutoPostBack = true;

AsyncPostBackTrigger saveStateTrigger = new AsyncPostBackTrigger();

saveStateTrigger.ControlID = dock.ID;

saveStateTrigger.EventName = "DockPositionChanged";

UpLineBuilderHidden.Triggers.Add(saveStateTrigger);

saveStateTrigger = new AsyncPostBackTrigger();

saveStateTrigger.ControlID = dock.ID;

saveStateTrigger.EventName = "Command";

UpLineBuilderHidden.Triggers.Add(saveStateTrigger);

}

protected void ButtonAddStop_Click(object sender, EventArgs e)

{

RadDock dock = CreateRadDock();

//adding the dock to the docklayout and then docking it to the zone to avoid ViewState issues on subsequent postback

RdlLineBuilder.Controls.Add(dock);

//UpLineBuilderHidden.ContentTemplateContainer.Controls.Add(dock);

ScriptManager.RegisterStartupScript(

dock,

this.GetType(),

"AddDock",

string.Format(@"function _addDock() {{

Sys.Application.remove_load(_addDock);

$find('{1}').dock($find('{0}'),{2});

$find('{0}').doPostBack('DockPositionChanged');

}};

Sys.Application.add_load(_addDock);", dock.ClientID, RdzLineBuilder.ClientID, 0),

true);

CreateSaveStateTrigger(dock);

}

As I said, this works fine. But what I want to achieve is to ajaxify the whole lot, i.e Use my RadAjaxManager on my default.aspx page.
Right now, as soon as I create a new tab, it postback the page and I'm losing some info (plus the page flicks on Chrome, FF is alright)

If I enable my AjaxManager I get the following error message that plenty of people have seen before:
"Sys.InvalidOperationException: Sys.InvalidOperationException: Could not find UpdatePanel with ID 'LineBuilder_pvNew_0_UpLineBuilderHidden'. If it is being updated dynamically then it must be inside another UpdatePanel"

Although I've found many people with the same issue of having an Update Panel within an Ajaxified usercontrol (see here for Telerik explanation) I can't get my mind around this to get a fully ajaxify project.

Another behavior I would like to code is to get an horizontal scrolling bar to appear when adding new docks rather than having them stacking on a new row and a vertical scroll bar.

You can download the project source as zip from here

Any idea / help would be much appreciated.

Cheers everyone,

Chris

Dock

answered on 23 Apr 2013

1 answer

250 views

Radtextbox (onBlur event) in GridDataItem passing values and finding values question...

I have a radgrid.
The dataitem row has several controls but two in particular have values I need for a javascript ajax call I need to make.
The user story is this...
A user sees a series of rows with a CampusID - a simple label and a copiesNeeded - a radnumerictextbox.
The ROW is NOT in edit mode, nor will it be...
The user clicks in the radtextbox and enters a value.
When they leave the textbox an onBlur event is fired.

Now in a client side javascript function I want to get the value they have entered in the radnumerictextbox and determine the value of the CampusID from the CampusNameLabel-- unless of course there is an easier means to do this clientside...
For example:

//================================================

//=== Save the value entered in the grid for copies needed.

//================================================

function saveCopiesNeeded(src, args) {

// Get the row the user had made changes in so I can get the campusID

// Get the radNumericTextbox so I can get the value the user typed

}

<telerik:GridTemplateColumn FilterControlAltText="Filter column" UniqueName="CampusID"

HeaderText="Campus ID" SortExpression="CampusID">

<ItemTemplate>

<asp:Label ID="CampusIDLabel" runat="server" Text='<%# DataBinder.Eval(Container.DataItem,"CampusID") %>'></asp:Label>

</ItemTemplate>

<HeaderStyle HorizontalAlign="Center" />

<ItemStyle HorizontalAlign="Center" Wrap="False" VerticalAlign="Middle" />

</telerik:GridTemplateColumn>

telerik:GridTemplateColumn FilterControlAltText="Filter TemplateColumn column" UniqueName="TemplateColumn">

<ItemTemplate>

<telerik:RadNumericTextBox ID="CopiesToOrderRadNumericTextbox" runat="server" Culture="en-US" DbValueFactor="1" LabelWidth="64px" MinValue="0" Width="70px">

<NumberFormat DecimalDigits="0" ZeroPattern="n" />

<ClientEvents OnBlur="saveCopiesNeeded"></ClientEvents>

</telerik:RadNumericTextBox>

</ItemTemplate>

</telerik:GridTemplateColumn>

Grid

answered on 23 Apr 2013

2 answers

255 views

Sys.WebForms.PageRequestManagerParserErrorException

Hello,

today, I spent hours trying to solve a
"Sys.WebForms.PageRequestManagerParserErrorException"
on the radgrid.

It happened only for some records. After some time, I narrowed it down to one single record.
Then I noticed, even in SQL Server, the record was truncated. Impossible to read beyond a certain point.
The radgrid was still able to show the whole record, but only on the page load: any async request would cause a:
Sys.WebForms.PageRequestManagerParserErrorException: The message received from the server could not be parsed. Common causes for this error are when the response is modified by calls to Response.Write(), response filters, HttpModules, or server trace is enabled.
Details: Error parsing near ' to move '.

After a few more hours of digging, I noticed firefox had no problems at all displaying the record, even in async postbacks...
And finally, I noticed the cause: in the middle of the record.
(Not even sure this will display for IE users)
A little ascii square!

So much pain, for one ascii square...
So many articles, so many forum threads... None ever mentionned this.. So I thought there should be at least one forum thread about this...
Good luck to anyone stumbling on this while searching for a mystical "Sys.WebForms.PageRequestManagerParserErrorException".
Those are hard...

Grid

answered on 23 Apr 2013

3 answers

97 views

start manul upload only after validation passes?

I am currently using RadAsyncUpload with ManualUpload="true". I have MultipleFileSelection="Disabled" but will allow multiple file inputs.

I am also using RadProgressArea.

Is there a way to check for invalid files before I fire startUpload(); ??
Or if not, can I stop the upload without removing all of the inputs?

If I cancel, can I restart the upload without removing all of the inputs?

Thanks, Marty

AsyncUpload

answered on 23 Apr 2013

2 answers

115 views

RadTimePIcker.SelectedTime compiler error

I am using RadControls for ASP.NET AJAX, v.2012.2.912.40

I am trying to set the Time on my RadTimePicker using the SelectedTime member in the C# code-behind, but I get the compiler error:
'Telerik.Web.UI.RadTimePicker' does not contain a definition for 'SelectedTime'

I am able to set it using the SelectedDate property, so my code works, but the on-line documentation states that the SelectedTime member should work. http://www.telerik.com/help/aspnet-ajax/p_telerik_web_ui_radtimepicker_selectedtime.html

Mostly I'm just curious why the compiler doesn't recognize the SelectedTime member.

Here's the ascx code fragment:

<telerik:RadDateInput ID="DateIN" runat="server"> </telerik:RadDateInput>

<telerik:RadTimePicker ID="TimeIN" runat="server"> </telerik:RadTimePicker>

Here's the C# code behind:

DateTime? dateIN = DateTime.Now;

TimeSpan? timeIN = dateIN.Value.TimeOfDay;

DateIN.SelectedDate = dateIN;

// this works

TimeIN.SelectedDate = myData.DateIN.Value.Date.AddMinutes(myData.TimeIN.Value.Minutes);

// this doesn't compile & it should

TimeIN.SelectedTime = timeIN;

Calendar

answered on 23 Apr 2013

8 answers

112 views

FormDecorator causes weird border w/ ipad/iphone

FYI: I am using version Q2 2011.

Here is the situation: I am using the FormDecorator control to style my radio buttons and checkboxes. These look great in the latest versions of Firefox, IE, Chrome and Safari (Windows and Mac).

However, with the ipad and iPhone, these controls show an odd border. I've attached a picture for your viewing pleasure. I'm not sure that "border" is even the right word. It is very odd looking.

I thought it might be my skin, but it appears even with a test project where I just created a radiobuttonlist, add the form decorator control and set the skin to Default.

To see this in action on your iphone/ipad, you can look here.

FormDecorator

answered on 23 Apr 2013

5 answers

167 views

pauseUpload example

I cannot seem to get the pauseUpload example to work. Is the example just set up wrong?

RadAsyncUpload1 is set to ManualUpload but RadAsyncUpload2 is not but the buttons to pause and resume refer to RadAsyncUpload2.

If pauseUpload() and resumeUpload() are part of manual upload then the buttons should refer to RadAsyncUpload1 right?

I am still using q3 2012 so I cannot test locally.

Marty

AsyncUpload

answered on 23 Apr 2013

1 answer

141 views

RadAutoCompleteBox and Opera Mobile

We are using Opera Mobile Version 10.
We had just upgraded the Telerik Tools to Q1 2013 from Q2 2012.

While using the Q2 2012 tools every thing appear to be working. However after we upgraded to Q1 2013, the AutoCompleteBox seems to not be working correctly. While the AutoCompleteBox is on the page none of the Telerik controls appear to work, removing the AutoCompleteBox they will.

Is there something that has changed that I need to change?

Also to note: We have used other browsers and it appears to be working as intended - only noticing this on the Opera Mobile browser.

Any help would be appreciated.

Thanks.

General Discussions

answered on 23 Apr 2013

13 answers

290 views

Combobox disabled after the first click

When i click the ComboBox for the very first time it works just as expected. Then it collapses and gets disabled.
Am i missing some setting? Btw, i populate the Combo using DataBind call.

    
            cmb.DataTextField = "fieldname" 
        
            cmb.DataValueField = "ID" 
        
            cmb.DataSource = table 
        
            cmb.DataBind()