RadComboBox enable disable from codebehind

[Fit2Page]

The following code disables the combobox, but I cannot enable it by unchecking the checkbox again...howcome?

 

   <telerik:RadComboBox Width="100%"  ID="rcb_zorgverzekeraar" runat="server"></telerik:RadComboBox>
                                           
                  <asp:CheckBox ID="chk_verzekeraar" CausesValidation="false" AutoPostBack="true" OnCheckedChanged="chk_verzekeraar_CheckedChanged" Text="Ik weet het niet" runat="server" />

 

 

with:

 

        Protected Sub chk_verzekeraar_CheckedChanged(sender As Object, e As EventArgs)
            rcb_zorgverzekeraar.Enabled = Not chk_verzekeraar.Checked
        End Sub

 

 

Marc

[Vasko]

Hello Marc,

I tested the provided code and on my end, everything worked as intended - the checkbox was able to disable/enable the ComboBox. I'd advise you to check if somehow you disable the ComboBox in any of the page lifecycle events.

This may not be the solution, but could you try the following way to toggle the disabled state and let me know the outcome:

Protected Sub chk_verzekeraar_CheckedChanged(ByVal sender As Object, ByVal e As EventArgs)
    Dim checkBox = TryCast(sender, CheckBox) 

    If checkBox.ID = "chk_verzekeraar" AndAlso checkBox.Checked Then
        rcb_zorgverzekeraar.Enabled = False
    Else
        rcb_zorgverzekeraar.Enabled = True
    End If
End Sub

Kind regards,
Vasko
Progress Telerik

[Fit2Page]

Hi Vasko,

 

An EnableViewState="false" on the masterpage was the devil.

 

Thank for your time.

 

Marc