Edit checkboxes directly and text in a popup EditForm Template

[Paul]

I have a TreeList with text columns and checkbox columns. Is there a way to allow the checkboxes to be clicked and change state in the TreeList and display a popup dialog for text editing?

[Mira]

Hello Paul,

Please examine the Accessing Cells and Items help topic to see how to access the checkboxes.
The RadTreeList provides pop-up editing mode. You can see it here.

I hope this helps.

Greetings,
Mira
the Telerik team

[Paul]

I was a bit vague with my question. By allow the checkboxes to be clicked and change state in the TreeList, I meant strictly client side, no AJAX, clicking a checkbox would fire an client-side script where I could change the state of the checkbox and possibly change the enabling/disabling of other checkboxes within the same record.

I found a similar post to mine, but I have not been able to get it to work. I define the TreeList server-side:

 

Dim checkBoxColumn As New TreeListCheckBoxColumn()
tlConfig.Columns.Add(checkBoxColumn)
checkBoxColumn.DataField = “Auditability“
checkBoxColumn.UniqueName = “Auditability”
checkBoxColumn.HeaderText = “Auditability”
checkBoxColumn.HeaderStyle.Width = Unit.Pixel(50)
checkBoxColumn.ReadOnly = False
checkBoxColumn.ItemStyle.CssClass = "centered"

In the ItemDataBound event:

If TypeOf e.Item Is TreeListDataItem Then
    Dim treeListDataItem As TreeListDataItem = CType(e.Item, TreeListDataItem)
    DirectCast(e.Item.FindControl("Auditability"), CheckBox).Attributes("onclick") = _
            [String].Format("return Auditable_onClick('{0}', event);", _
            DirectCast(treeListDataItem.DataItem, ConfigListItem).Index.ToString())
End If

The problem I am having is the “e.Item.FindControl("Auditability")”. When I use VS QuickWatch to examine the available controls, I cannot find Auditability, but I can find clientIDs. Is there a way around this or does not work when the TreeList is define server-side?

[Mira]

Hello Paul,

Please use the following code in order to find the checkboxes and set the onclick event handlers:

If TypeOf e.Item Is TreeListDataItem Then
    Dim treeListDataItem As TreeListDataItem = CType(e.Item, TreeListDataItem)
    DirectCast(treeListDataItem("Auditability").Controls(0), CheckBox).Attributes("onclick") = String.Format("return Auditable_onClick('{0}', event);", _
            DirectCast(treeListDataItem.DataItem, ConfigListItem).Index.ToString())
End If

I hope this helps.

Greetings,
Mira
the Telerik team

[Paul]

Thanks for the response Mira.

I tried your code. The function Auditable_onClick is not being called. Just for the heck of it I tried to reference Controls(1) and get an index out of range, so there is only one control. I also tried changing the [Attributes(“onclick”)] to [Attributes.Add(“onclick”,] with the same result.

[Mira]

Hello Paul,

I have followed your scenario and prepared a sample project for you demonstrating how the desired functionality can be implemented. You can find it attached to this message.

I hope it helps.

All the best,
Mira
the Telerik team

[Paul]

Thanks that really helped.

Paul