C# - How To Add Default Value To A RadComboBox
Jan 13, 2011
I am trying to add an extra item to my WCF service. Here is my code. I have a code which gets the values from the database. I would like to add default item 'All' to array. Here is my WCF code.
RadComboBoxData result = new RadComboBoxData();
var listView = new listTypedView();
//In case the user typed something - filter the result set
string text = String.Concat("%", context.Text, "%");
if (!String.IsNullOrEmpty(text))
[code]...
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Jun 9, 2010
So I've been moving a lot of stuff into a webservice because it makes the whole thing make more sense to me personally. Also makes AJAX easier for me. Right now the user will say they want to save a new contact somewhere then, through the webservice, they are added to a database and that call returns the new primary key so that I can change the RadComboBox automatically to this new record. However I can't seem to find a way to re-bind the combo box to the database so that I can correctly set the selected value. Does anyone have any good advice on how to do this? Should I not even be using the RadCombobox? (preferably like an answer as the whole things stands but I welcome some good alternatives to the combobox)
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Jun 10, 2010
I'm just struggling with a lot of little things in the web app so I'm checking up with all kinds of stuff to make sure i'm not breaking it cause of stupid problems.At some point in my web app (trying to keep it mostly Asynchronous) I have to update the list in my RadComboBox because something was added. Do I just need to call RadComboBox.DataBind() again? Since I don't explicitly use its datasource(I do it in the manual insert using a string fashion) object to insert my new record do I need to tell that to update? The list just doesn't seem to update when i just call databind so I feel like i need to have the datasource recheck for entries or SOMETHING
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Aug 23, 2010
need javascript to set an selected index for RAD combobox to 0
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Jan 18, 2011
Is there anything about my code below that would prevent the client event "OnClientItemsRequested" from firing? I have a couple RadComboBox elements on a page that sometimes get into a state where they load nothing and don't fire the "OnClientItemsRequested" event. Is there anything I could do to FORCE this event to fire?
<telerik:RadComboBox
ID="SomeFilter"
runat="server"
Height="230px" Width="300px" style="margin-bottom:5px"
[Code]....
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Nov 1, 2010
why the below javascript code always returns null (mean alert) ?
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="WebApplication3.WebForm1" %>
<%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>
<!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 id="Head1" runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<telerik:RadScriptManager ID="RadScriptManager1" runat="server">
</telerik:RadScriptManager>
<div>
<telerik:RadComboBox ID="RadComboBox1" runat="server">
</telerik:RadComboBox>
</div>
<telerik:RadCodeBlock ID="RadCodeBlock1" runat="server">
<script type="text/javascript">
var combo = $find("<%= RadComboBox1.ClientID %>");
alert(combo);
</script>
</telerik:RadCodeBlock>
</form>
</body>
</html>
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Feb 8, 2011
I would like to bind 'Id', 'Name' and 'Email' from DataTable to RadComboBox. It's possible with ItemTemplate. But I don't want to display 'Email' column in the RadComboBox. I want display 'Email' in the label when the selectedIndexChanged. Is this possible?
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Jan 11, 2011
For some reason my RadComboBox "EmptyMessage" is not showing on the initial load of the page but it does after I focus and blur out of the control. How can I force my "EmptyMessage" to show by default?
My .aspx is as follows:
<telerik:RadComboBox
ID="SomeFilter" runat="server"
EmptyMessage="Choose..."
OnClientSelectedIndexChanging="OnClientSelectedIndexChanging"
[Code].....
My combobox defaults to "Test1" by default instead of "Choose...". Once I open and close the combobox, however, the default changes to "Choose...".
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Feb 2, 2011
How can I validate RadComboBox on the server side with LoadonDemand true and AllowCustomText is true? I have the following code but it doesn't validate correctly.
protected void RadComboBox1ServerValidate(object sender, ServerValidateEventArgs arg)
{
arg.IsValid = RadComboBox1.SelectedValue.Length > 0;
}
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Jan 20, 2010
I use a RadComboBox And use the code exactly as same as mentioned at the site
http://demos.telerik.com/aspnet-ajax/combobox/examples/populatingwithdata/autocompletesql/defaultcs.aspx
I use the code for "Server side" on the page mentioned in the above link.
However i am able to populate the values the first time the page is loaded but when i type in text it does not refine .Am i missing out on something ?
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