Fire AJAX Server event on TextChanged.

[Paul Buxton]

Hi,

i'm trying to do the following.....

I want to validate a username is unique from a RadTextBox and handle TextChanged which calls the database.  What I subsequently need to do is get the client to display a radalert or a radwindow to display saying the name is already in use.

I have a RadAjaxManager, and enabled the textbox within it.

In textchanged handler I try to inject a radalert

RadAjaxManager1.ResponseScripts.Add("radalert('UserName is already in use!')");

but it never displays.

Is this something that is possible, or not?

Regards
Paul.

[Shinu]

Hello Paul Buxton,

I tried the scenario and it is working fine in my side. Have you placed ScripManager/RadScriptManager before the RadAjaxManager markup?

Here is the code that I tried. Have a look on this:
aspx

<telerik:RadScriptManager ID="RadScriptManager2" runat="server">
</telerik:RadScriptManager>

<telerik:RadAjaxManager ID="RadAjaxManager2" runat="server">
    <AjaxSettings>
        <telerik:AjaxSetting AjaxControlID="TextBox1">
            <UpdatedControls>
                <telerik:AjaxUpdatedControl ControlID="TextBox1" />
            </UpdatedControls>
        </telerik:AjaxSetting>
    </AjaxSettings>
</telerik:RadAjaxManager>

<telerik:RadWindowManager ID="RadWindowManager2" runat="server">
</telerik:RadWindowManager>

<asp:TextBox ID="TextBox1" runat="server" OnTextChanged="TextBox1_TextChanged">
</asp:TextBox>

cs

protected void TextBox1_TextChanged(object sender, EventArgs e)
{
    RadAjaxManager1.ResponseScripts.Add("radalert('UserName is already in use!');");
}

-Shinu.

[Paul Buxton]

The simplest things are the solution.  I never even realised I'd got the script manager after then manager.  I never realised it mattered.

[Bijoy Mohanta]

01.<telerik:RadAjaxManagerProxy ID="RadAjaxManagerProxy1" runat="server" ValidateRequestMode="Enabled">
02.        <AjaxSettings>
03.             <telerik:AjaxSetting AjaxControlID="txtDeclinedByPin">
04.                <UpdatedControls>
05.                    <telerik:AjaxUpdatedControl ControlID="txtDeclinedByPin" />
06.                    <telerik:AjaxUpdatedControl ControlID="txtDeclinedByName" />
07.                    <telerik:AjaxUpdatedControl ControlID="txtDeclinedByDesignation"/>
08.                </UpdatedControls>
09.            </telerik:AjaxSetting>
10.        </AjaxSettings>
11.    </telerik:RadAjaxManagerProxy>
12.
13.
14.For control:
15.<telerik:RadNumericTextBox runat="server" ID="txtDeclinedByPin" OnTextChanged="txtDeclinedByPin_TextChanged1" AutoPostBack="true"></telerik:RadNumericTextBox>

hi experts this is the solution on TextChanged Event with ajaxifying