ComboBox values getting changed

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VS2010

As a follow on to my question of yesterday (How do I Populate a Combobox from a SQL Datatable[^]) I have a new question.

My ComboBox is populated with the 3 entries from my test Database. If I click on the ComboBox I get the 3 entries as I would expect, if I don't select one and I just click on the ComboBox again, it closes and I can repeat this ad infinitum ... this is as I would expect.

If I then click on the ComboBox and Select one of them, let's say the middle one, the DropDown closes and the Selection is in the ComboBox, again, as I would expect.

However, if I then click on the ComboBox again (let's assume my User has Selected the wrong option), the Selection I made is now the first entry, the original first entry has gone, and the second entry, the one I Selected, has been replaced with either the text "System.Data.DataRowView" (If I have the ValueMember set to the Name from the Dataset) or if I have the ValueMember set to the ID from the Dataset, my Selection, when I re-open the ComboBox, is highlighted, still in second place, but the first entry is gone and has been replaced by the Number "2" ... I think the positioning is probably down to Sorting of the DatsTable.

If I cancel and rerun, everything is back to normal so nothing is really being Updated.

Posted 8-Jan-14 1:00am

Gary Heath

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Tejas Vaishnav 8-Jan-14 8:19am

can you post your code...

2 solutions

Solution 1

This is my code, Tejas, such as it is ...

VB

Public Class KAmail_Form1

    Private Sub KAmail_Form1_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load

        Me.LeaguesTableAdapter.Fill(Me.DB_KAmailDataSet.Leagues)

        KAmail_ComboBox1.SelectedIndex = -1
        KAmail_ComboBox2.SelectedIndex = 0

    End Sub

    Private Sub KAmail_Button1_Click(sender As System.Object, e As System.EventArgs) Handles KAmail_Button1.Click

    End Sub

    Private Sub KAmail_Button2_Click(sender As System.Object, e As System.EventArgs) Handles KAmail_Button2.Click
        Me.Close()
    End Sub

End Class

Posted 8-Jan-14 2:32am

Gary Heath

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Gary Heath · Accepted Answer · 2014-01-21T00:26:00

Solution 2

I have done this differently, so this question / topic can be closed / deleted.

Posted 21-Jan-14 0:26am

Gary Heath