2016 Q1 Breaks Sys.Application.remove_load

[Richard]

In order to make my pages containing RadGrids more responsive, I load the page with no data and then retrieve the data in a postback.

This worked great until I tried running it with the latest Telerik UI controls (2016 Q1). Now, the remove_load does not seem to work, so the data is continually reloaded.

Any ideas?

The code on my aspx page is as follows:

<script type="text/javascript">
    function rebindGrid(clientid) {
        var grid = $find(clientid);
        if (grid == null)
            return;
        if (typeof (grid.get_masterTableView) != "function")
            return;
        var masterTable = grid.get_masterTableView();
        if (masterTable != null)
            masterTable.rebind();
    }

    function rebindPageGrid() {
        Sys.Application.remove_load(rebindPageGrid);
        rebindGrid("<%= AccountGrid.ClientID %>");
    }

    Sys.Application.add_load(rebindPageGrid);
</script>

The code behind looks like:

protected void OnAccountGridNeedDataSource(object source, GridNeedDataSourceEventArgs e)
{
    if (Page.IsPostBack)
    {
        AccountGrid.DataSource = GetAccountList();
        AccountGrid.MasterTableView.NoMasterRecordsText = "No records to display";
    }
    else
    {
        AccountGrid.DataSource = new List<Account>();
        AccountGrid.MasterTableView.NoMasterRecordsText = "Loading Data...";
    }
}

 

[Maria Ilieva]

Hi Richard,

Please revise the answer provided in the official support ticket you have opened for the same issue and see if it helps. I would suggest you to continue our communication in the support thread so that we can easily track your case.

Regards,
Maria Ilieva
Telerik

[Richard]

In this case, a little more context provides the answer:

<telerik:RadScriptBlock runat="server">
    <script type="text/javascript">
        function rebindPageGrid() {
            Sys.Application.remove_load(rebindPageGrid);
            rebindGrid("<%= AccountGrid.ClientID %>");
        }
        Sys.Application.add_load(rebindPageGrid);
    </script>
</telerik:RadScriptBlock>

The RadScriptBlock should be replaced with a RadCodeBlock.

You can read more about the difference at:

http://docs.telerik.com/devtools/aspnet-ajax/controls/ajax/radcodeblock-and-radscriptblock

 

 

[Maria Ilieva]

Hi Richard,

I hope chaining the RadScriptBlock with RadCodeBlock helped in your case. Do let us know if further assistance in this issue is needed.

Regards,
Maria Ilieva
Telerik