dotNETportal.cz

Zkuste nastavit ValueMember a DisplayMember:

Public Class Form1
    Public Sub New()
        ' This call is required by the Windows Form Designer.
        InitializeComponent()
        ' Add any initialization after the InitializeComponent() call.

        Dim dtb As DataTable = New DataTable
        With dtb
            .Columns.Add("B1")
            .Columns.Add("B2") 'selectedindex
            .Rows.Add("Text1", 0)
            .Rows.Add("Text2", 1)
            .Rows.Add("Text3", 2)
            .Rows.Add("Text4", 0)
        End With

        Dim dtc As DataTable = New DataTable
        With dtc
            .Columns.Add("C1") 'selectedindex
            .Columns.Add("C2") 'zobrazeny text
            .Rows.Add(0, "první")
            .Rows.Add(1, "druhý")
            .Rows.Add(2, "třetí")
        End With

        Dim dgv As DataGridView = New DataGridView
        With dgv
            .AutoGenerateColumns = False
            .Columns.Add("B1", "B1")
            .Columns(0).DataPropertyName = "B1"
            Dim ccb As DataGridViewComboBoxColumn = New DataGridViewComboBoxColumn
            With ccb
                .HeaderText = "B2"
                .Name = "B2"
                .DataPropertyName = "B2"
                .ValueMember = "C1" 'selectedindex
                .DisplayMember = "C2" 'zobrazeny text
                .DataSource = dtc 'comboboxcolumn datasource
            End With
            .Columns.Add(ccb)
            .DataSource = dtb 'datagridview datasource
            .Dock = DockStyle.Fill
        End With
        Me.Controls.Add(dgv)
    End Sub
End Class