Programmatic Creation of Template Columns and EditItemIndexes

[jfkrueger]

I have followed the steps in the following article to create a template column programmatically:

http://www.telerik.com/help/aspnet-ajax/grdprogrammaticcreation.html

However, it doesn't seem to address how to make it work if you allow edits. I set the EditItemIndex like this:

RadGridCoverages.EditIndexes.Add(RadGridCoverages.Items.Count - 1)

But it has no effect since in the template column the Enabled property of the checkbox is being set to false. How do I detect if the checkbox should be enabled or not in my custom template class so that setting the EditItemIndexes actually works?

Thanks!

[Tsvetoslav]

Hi Joe,

If you have correctly created your template column, the EditItemInexes collection should work as expected. When you are creating a template column that should allow editing, you need to assign a new object of your custom class to the EditItemTemplate property of the template column and in the DataBinding event for the controls in the column take into consideration that their naming container will be of type GridEditFormItem.

For example, if the column in the help article you have cited should allow editing, then you need the following line of code in the Page_Init event:

templateColumn.EditItemTemplate = new MyTemplate(templateColumnName);

Then, the handler for the data binding event of the literal controls becomes:

    public void lControl_DataBinding(object sender, EventArgs e)
    {
        LiteralControl l = (LiteralControl)sender;
        GridDataItem container = l.NamingContainer as GridDataItem;

        if (container != null)
            l.Text = ((DataRowView)container.DataItem)[colname].ToString() + "<br />";
        else
        {
            GridEditFormItem editFormContainer = l.NamingContainer as GridEditFormItem;

            if (editFormContainer != null)
                l.Text = ((DataRowView)editFormContainer.DataItem)[colname].ToString() + "<br />";
        }

    }

Hope this helps.

Best Regards,
Tsvetoslav
the Telerik team

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