How to programmatically cause RadAjaxManager to update a control.

[Samy]

Hi I have been having this issue in many development requests. Basically I use RadAjaxManager to update controls on a webform, but sometimes certain code is called on the server that should update a control and I need to cause that control to be upated on the screen from code behind. Is there a way to use the RadAjaxManager to achieve this task?

Thanks

[Shinu]

Hi Samy,

Please have a look into the sample code snippet to achieve your scenario.

ASPX:

<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server"  DefaultLoadingPanelID="RadAjaxLoadingPanel1">
</telerik:RadAjaxManager>
<telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanel1" runat="server" Skin="Default">
</telerik:RadAjaxLoadingPanel>
<telerik:RadButton ID="RadButton1" runat="server" Text="Click" OnClick="RadButton1_Click">
</telerik:RadButton>
<telerik:RadTextBox ID="RadTextBox1" runat="server" Text="Update">
</telerik:RadTextBox>

C#:

protected void Page_Load(object sender, EventArgs e)
{
    RadAjaxManager1.AjaxSettings.AddAjaxSetting(RadButton1, RadTextBox1);
}
protected void RadButton1_Click(object sender, EventArgs e)
{
    Thread.Sleep(1000);
}

Thanks,
Shinu.

[Samy]

In this scenario the user clicks RadButton1 which updates RadTextBox1 through RadAjaxManager1, but in my scenario there is no user clicking a button. It is just code running on the server that needs to update a control so I still don't know how to achieve that.
 

[Eyup]

Hello Samy,

I'm afraid it is difficult to figure out your exact requirement. Which controls initiate the AJAX Request when you have to execute the mentioned logic? Or it may run on every request regardless of the initiator? Please elaborate on your specific scenario and send us sample screenshots or video demonstrating the desired behavior.

Regards,
Eyup
Telerik