#C change grid column type how to#

Private Sub ComboBox_SelectedIndexChanged( _īyVal sender As Object, ByVal e As EventArgs)ĭim comboBox1 As ComboBox = CType(sender, ComboBox)ĬType(CType(sender, ComboBox).SelectedItem, Color) New EventHandler(AddressOf ComboBox_SelectedIndexChanged)

RemoveHandler combo.SelectedIndexChanged, _ ' adding multiple handlers when the editing control is reused. ' Remove an existing event-handler, if present, to avoid Handles dataGridView1.EditingControlShowingĭim combo As ComboBox = CType(e.Control, ComboBox) Private Sub dataGridView1_EditingControlShowing(ByVal sender As Object, _īyVal e As DataGridViewEditingControlShowingEventArgs) _

Private WithEvents dataGridView1 As New DataGridView()ĭim comboBoxColumn As New DataGridViewComboBoxColumn()Ĭolor.Red, Color.Yellow, Color.Green, Color.Blue)ĬomboBoxColumn.ValueType = GetType(Color)ĭ(comboBoxColumn) ((ComboBox)sender).BackColor = (Color)((ComboBox)sender).SelectedItem The columns are being auto-generated from my source data. Private void ComboBox_SelectedIndexChanged(object sender, EventArgs e) I am creating a GridView in a method like so: GridView gridView new GridView () gridView.DataSource reportData.Tables 0 gridView.DataBind () I am later exporting it to Excel and it works great. New EventHandler(ComboBox_SelectedIndexChanged) adding multiple handlers when the editing control is reused. The standard data table presumes that the entire data set is available locally. Remove an existing event-handler, if present, to avoid Private void dataGridView1_EditingControlShowing(object sender,ĭataGridViewEditingControlShowingEventArgs e) New DataGridViewEditingControlShowingEventHandler( Name - Textbox (user input at runtime) The classes are related by inheritance so I can use them within the same observablecollection. Class 2: Name - Description - Textbox (user input at runtime) - Checkbox. private DataGridView dataGridView1 = new DataGridView() ĭataGridViewComboBoxColumn comboBoxColumn =Ĭolor.Red, Color.Yellow, Color.Green, Color.Blue) ĬomboBoxColumn.ValueType = typeof(Color) ĭ(comboBoxColumn) I have different classes for the different rows, for example.

#C change grid column type how to#

The following code example demonstrates how to use the ValueType property in the initialization of a DataGridViewComboBoxColumn that contains Color values.