Question

Is there any way we can have functionality like DataTextField and DataValueField in WPF ComboBox.

I have this query:

   Select UID, EmployeeName from tblSystemEmployee;

I want to display EmployeeName in the combo box but it keeps displaying UID. Is there any way I can achieve it? Thank you for your help?

This is how I am populating my dataset:

     Try
        cbEmp.Items.Clear()
        Dim QueryString As String = "SELECT UID, EmployeeName FROM tblSystemEmployee"
        Dim drow As DataRow
        drow = Nothing
        dsEmp = New DataSet

        dsEmp = GetResult(QueryString, True)
        If IsValidDataset(dsEmp) Then
            For Each drow In dsEmp.Tables(0).Rows
                cbEmp.Items.Add(drow(0).ToString())

            Next
        End If

Answer 1

You need the DisplayMemberPath property for the display
and the SelectedValuePath property for the value

<Combobox DisplayMemberPath="EmployeeName" SelectedValuePath="UID" />

Then you can access to whole selected object (e.g. UID, EmployeeName pair) with the SelectedItem property but if you just want the UID then the SelectedValue property is what you need.

You can learn more about the workings of the properties at MSDN:

• DisplayMemberPath
• SelectedValuePath

For populating the ComboBox with values you need to set the ItemsSource property with a list:

Instead of cbEmp.Items.Clear() use cbEmp.ItemsSource = Nothing and

And

If IsValidDataset(dsEmp) Then
        cbEmp.ItemsSource = dsEmp.Tables(0).DefaultView
End If

A good intro article about WPF databinding and comboboxes.