SelectedIndexChanged Event not workking correctly

[Web]

Hello,

i have a very weird issue. Everytime when i select an item from the Combobox the SelectedText value only changes at the second time when the SelectedIndexChanged event is fired. So i have to select the itme twice until i get the Value i want to have. Urgent Problem!!

[Georgi]

Hello Kerstin,

The SelectedText property returns the string that represents the currently selected text in the text box part of the combobox. To get always the proper text value of the currently selected item you should use instead:

((RadComboBoxItem)SelectedItem).Text.

If you need further assistance, please write us back and give us some more information about your case.

Sincerely yours,
Georgi
the Telerik team

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[Chase Florell]

I am having this same issue with the most current version of WinForms.

My code looks like this

    Private Sub RadComboBox1_SelectedValueChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles RadComboBox1.SelectedIndexChanged


        If RadComboBox1.SelectedIndex = 0 Then
            Dim hp As New HouseholdsProvider()
            Dim ds As DataSet = hp.GetHouseholdsAsDataSet()
            RadComboBox2.DisplayMember = "Name"
            RadComboBox2.ValueMember = "ID"
            RadComboBox2.DataSource = ds.Tables(0)


        ElseIf RadComboBox1.SelectedIndex = 1 Then
            Dim op As New OrganizationsProvider()
            Dim ds As DataSet = op.GetHouseholdsAsDataSet
            RadComboBox2.DisplayMember = "Organization"
            RadComboBox2.ValueMember = "ID"
            RadComboBox2.DataSource = ds.Tables(0)


        End If



    End Sub

But the problem is that I need to change the data in RCB1 twice before RCB2 binds to the new Provider.

[Chase Florell]

Well I think I got it... can anyone confirm that this is the "Right" way to do it?

        If RadComboBox1.SelectedIndex = 0 Then
            RadComboBox2.DataSource = Nothing
            Dim hp As New HouseholdsProvider()
            Dim ds As DataSet = hp.GetHouseholdsAsDataSet()
            RadComboBox2.DisplayMember = "Name"
            RadComboBox2.ValueMember = "ID"
            RadComboBox2.DataSource = ds.Tables(0)


        ElseIf RadComboBox1.SelectedIndex = 1 Then
            RadComboBox2.DataSource = Nothing
            Dim op As New OrganizationsProvider()
            Dim ds As DataSet = op.GetHouseholdsAsDataSet
            RadComboBox2.DisplayMember = "Organization"
            RadComboBox2.ValueMember = "ID"
            RadComboBox2.DataSource = ds.Tables(0)


        End If

Notice how I cleared the datasource before binding to a new one.

[Georgi]

Hi Chase Florell,

I am not quite sure that your issue is the same as with the previous one related to SelectedText. Otherwise, your last approach seems to be ok.

The previous would probably not work because you assign a new value to the DisplayMember property before changing the datasource while the combobox is still bound to the old one. Furthermore, it not needed to set ValueMember twice with the same value.

If you have any other questions, I will be glad to help you.

Kind regards,
Georgi
the Telerik team

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