DataGridViewColumnCollection DataGridViewColumnCollection DataGridViewColumnCollection DataGridViewColumnCollection Class

Definition

public ref class DataGridViewColumnCollection : System::Windows::Forms::BaseCollection, System::Collections::IList

[System.ComponentModel.ListBindable(false)]
public class DataGridViewColumnCollection : System.Windows.Forms.BaseCollection, System.Collections.IList

type DataGridViewColumnCollection = class
    inherit BaseCollection
    interface IList
    interface ICollection
    interface IEnumerable

Public Class DataGridViewColumnCollection
Inherits BaseCollection
Implements IList

Inheritance

ObjectObjectObjectObject

MarshalByRefObjectMarshalByRefObjectMarshalByRefObjectMarshalByRefObject

BaseCollectionBaseCollectionBaseCollectionBaseCollection

DataGridViewColumnCollectionDataGridViewColumnCollectionDataGridViewColumnCollectionDataGridViewColumnCollection

Attributes

ListBindableAttribute

Implements

ICollectionICollectionICollectionICollection IEnumerableIEnumerableIEnumerableIEnumerable IListIListIListIList

Examples

The following code example illustrates the use of this type.

private DataGridView dataGridView1 = new DataGridView();

private void AddColorColumn()
{
    DataGridViewComboBoxColumn comboBoxColumn =
        new DataGridViewComboBoxColumn();
    comboBoxColumn.Items.AddRange(
        Color.Red, Color.Yellow, Color.Green, Color.Blue);
    comboBoxColumn.ValueType = typeof(Color);
    dataGridView1.Columns.Add(comboBoxColumn);
    dataGridView1.EditingControlShowing +=
        new DataGridViewEditingControlShowingEventHandler(
        dataGridView1_EditingControlShowing);
}

private void dataGridView1_EditingControlShowing(object sender,
    DataGridViewEditingControlShowingEventArgs e)
{
    ComboBox combo = e.Control as ComboBox;
    if (combo != null)
    {
        // Remove an existing event-handler, if present, to avoid 
        // adding multiple handlers when the editing control is reused.
        combo.SelectedIndexChanged -=
            new EventHandler(ComboBox_SelectedIndexChanged);

        // Add the event handler. 
        combo.SelectedIndexChanged +=
            new EventHandler(ComboBox_SelectedIndexChanged);
    }
}

private void ComboBox_SelectedIndexChanged(object sender, EventArgs e)
{
    ((ComboBox)sender).BackColor = (Color)((ComboBox)sender).SelectedItem;
}

Private WithEvents dataGridView1 As New DataGridView()

Private Sub AddColorColumn()

    Dim comboBoxColumn As New DataGridViewComboBoxColumn()
    comboBoxColumn.Items.AddRange( _
        Color.Red, Color.Yellow, Color.Green, Color.Blue)
    comboBoxColumn.ValueType = GetType(Color)
    dataGridView1.Columns.Add(comboBoxColumn)

End Sub

Private Sub dataGridView1_EditingControlShowing(ByVal sender As Object, _
    ByVal e As DataGridViewEditingControlShowingEventArgs) _
    Handles dataGridView1.EditingControlShowing

    Dim combo As ComboBox = CType(e.Control, ComboBox)
    If (combo IsNot Nothing) Then

        ' Remove an existing event-handler, if present, to avoid 
        ' adding multiple handlers when the editing control is reused.
        RemoveHandler combo.SelectedIndexChanged, _
            New EventHandler(AddressOf ComboBox_SelectedIndexChanged)

        ' Add the event handler. 
        AddHandler combo.SelectedIndexChanged, _
            New EventHandler(AddressOf ComboBox_SelectedIndexChanged)

    End If

End Sub

Private Sub ComboBox_SelectedIndexChanged( _
    ByVal sender As Object, ByVal e As EventArgs)

    Dim comboBox1 As ComboBox = CType(sender, ComboBox)
    comboBox1.BackColor = _
        CType(CType(sender, ComboBox).SelectedItem, Color)

End Sub

Remarks

You can retrieve an instance of this class through the Columns property of the DataGridView control. The collection maintains a reference to the control through the DataGridView property.

Constructors

Properties

Methods

Events

Explicit Interface Implementations

Extension Methods

Applies to

See also

• DataGridView DataGridView DataGridView DataGridView
• Columns
• DataGridViewColumn DataGridViewColumn DataGridViewColumn DataGridViewColumn