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DataGridViewCheckBoxColumn.FlatStyle Property

Gets or sets the flat style appearance of the check box cells.

Namespace:  System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)
public FlatStyle FlatStyle { get; set; }

Property Value

Type: System.Windows.Forms.FlatStyle
A FlatStyle value indicating the appearance of cells in the column. The default is Standard.
ExceptionCondition
InvalidOperationException

The value of the CellTemplate property is null.

To display the check box cells using visual styles, set this property to System and call the Application.EnableVisualStyles method before Application.Run.

Getting or setting this property gets or sets the FlatStyle property of the cell object returned by the CellTemplate property. Setting this property also sets the FlatStyle property of every cell in the column and refreshes the column display. To override the specified value for individual cells, set the cell values after you set the column value.

Windows XP Home Edition, Windows XP Professional x64 Edition, Windows Server 2003 Platform Note: Visual styles are only supported on Windows XP Home Edition, Windows XP Professional, and Windows Server 2003.

The following code example demonstrates how to use a DataGridViewCheckBoxColumn to mark which employees are out of the office. This example is part of a larger example available in the DataGridViewComboBoxColumn class overview topic.

private void AddOutOfOfficeColumn()
{
    DataGridViewCheckBoxColumn column = new DataGridViewCheckBoxColumn();
    {
        column.HeaderText = ColumnName.OutOfOffice.ToString();
        column.Name = ColumnName.OutOfOffice.ToString();
        column.AutoSizeMode = 
            DataGridViewAutoSizeColumnMode.DisplayedCells;
        column.FlatStyle = FlatStyle.Standard;
        column.ThreeState = true;
        column.CellTemplate = new DataGridViewCheckBoxCell();
        column.CellTemplate.Style.BackColor = Color.Beige;
    }

    DataGridView1.Columns.Insert(0, column);
}

.NET Framework

Supported in: 4.5.1, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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