OnClick event not fire

[Eric]

Hi,

It maybe is a bug.

OnClick event will not fire when set_enabled(false) at the client site before submit .

Here is my code:
protected void Page_Load(object sender, EventArgs e)
    {
ScriptManager.RegisterOnSubmitStatement(
            Page, GetType(), "Onsubmit1",
            string.Format(@"var button = $find('{0}');button.set_enabled(false);"
                          , RadButton1.ClientID));
}
protected void RadButton1_Click(object sender, EventArgs e)
    {
        RadButton1.Text = "Click";
    }

in aspx:
  <telerik:RadButton ID="RadButton1" runat="server"  Text="Confirm" OnClick="RadButton1_Click"  >
            </telerik:RadButton>

[Shinu]

Hi Eric,

I have tried to replicate your issue.The OnClick event is not firing because ,you have set it on the Page_Load event.If you want to disable the button only for the first time then put the code in !IsPostBack .Try the following code snippet.

C#:

protected void Page_Load(object sender, EventArgs e)
{
 if (!IsPostBack)
  {
   ScriptManager.RegisterOnSubmitStatement(Page, GetType(), "Onsubmit1", string.Format(@"var button = $find('{0}');button.set_enabled(false);", RadButton1.ClientID));
  }
}

Thanks,
Shinu

[Eric]

Hi Shinu,

I think it's not a correct solution.

When I move  RegisterOnSubmitStatement to !IsPostBack statement, first time does not fire, but second time does.

I guess it's just not register the script after first postback.

[Danail Vasilev]

Hi Eric,

ScriptManager.RegisterOnSubmitStatement method registers ECMAScript (JavaScript) code with the ScriptManager control for a control that is used with an UpdatePanel control that is executed when the form is submitted. This is explained in here.

Therefore you code can look like:
ASPX:

<asp:UpdatePanel ID="Updatepanel1" runat="server">
    <ContentTemplate>
        <telerik:RadButton ID="RadButton1" runat="server" Text="Text" OnClick="RadButton1_Click">
        </telerik:RadButton>
    </ContentTemplate>
</asp:UpdatePanel>

C#:

protected void Page_Load(object sender, EventArgs e)
{
    string script = "function f(){var button = $find(\'" + RadButton1.ClientID + "\');button.set_enabled(false); Sys.Application.remove_load(f);}Sys.Application.add_load(f);";
    ScriptManager.RegisterOnSubmitStatement(this, this.GetType(), "Onsubmit1", script);
}

protected void RadButton1_Click(object sender, EventArgs e)
{
    RadButton1.Text = "Click";
}

Note that I have used sys.application.load event, in order to ensure that the event is raised after all the scripts have been loaded on the page. Note also that the code will be executed only once and then removed, otherwise it will be called after every Ajax request.

More information on loading scripts from the code behind is available in Opening from the Server and Executing JavaScript function from server-side code help articles.


Regards,
Danail Vasilev
Telerik

[Eric]

Hi Danail,

It's works , thanks !