DataGridViewCell.ValueType DataGridViewCell.ValueType DataGridViewCell.ValueType DataGridViewCell.ValueType Property

Definición

Obtiene o establece el tipo de datos de los valores de la celda.Gets or sets the data type of the values in the cell.

public:
 virtual property Type ^ ValueType { Type ^ get(); void set(Type ^ value); };
[System.ComponentModel.Browsable(false)]
public virtual Type ValueType { get; set; }
member this.ValueType : Type with get, set
Public Overridable Property ValueType As Type

Valor de propiedad

Type que representa el tipo de datos del valor de la celda.A Type representing the data type of the value in the cell.

Ejemplos

En el ejemplo de código siguiente se muestra el uso de esta propiedad.The following code example demonstrates the use of this property.

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

Comentarios

Si el ValueType no se estableció la propiedad de la celda, el DataGridViewColumn.ValueType se utiliza la propiedad para la columna propietaria, si existe.If the ValueType property for the cell has not been set, the DataGridViewColumn.ValueType property for the owning column is used, if it exists.

El Value propiedad es el objeto de datos real que contiene la celda, mientras que el FormattedValue propiedad es la representación con formato de los datos.The Value property is the actual data object contained by the cell, whereas the FormattedValue property is the formatted representation of the data. El ValueType y FormattedValueType propiedades corresponden a los tipos de datos de estos valores, respectivamente.The ValueType and FormattedValueType properties correspond to the data types of these values, respectively.

Se aplica a

Consulte también: