DataGridViewColumnCollection.Add Méthode

public:
 virtual int Add(System::Windows::Forms::DataGridViewColumn ^ dataGridViewColumn);

public virtual int Add (System.Windows.Forms.DataGridViewColumn dataGridViewColumn);

abstract member Add : System.Windows.Forms.DataGridViewColumn -> int
override this.Add : System.Windows.Forms.DataGridViewColumn -> int

Public Overridable Function Add (dataGridViewColumn As DataGridViewColumn) As Integer

Paramètres

Retours

Int32

Index de la colonne.

Exceptions

Exemples

L’exemple de code suivant illustre l’utilisation de cette méthode.

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

Voir aussi

• DataGridView
• DataGridViewColumn

public:
 virtual int Add(System::String ^ columnName, System::String ^ headerText);

public virtual int Add (string columnName, string headerText);

abstract member Add : string * string -> int
override this.Add : string * string -> int

Public Overridable Function Add (columnName As String, headerText As String) As Integer

Paramètres

Retours

Int32

Index de la colonne.

Exceptions

Remarques

Les columnName paramètres et headerText les paramètres sont liés aux propriétés et HeaderText aux Name propriétés, respectivement.

Voir aussi

• DataGridView
• DataGridViewColumn