DataGridView.RowHeadersDefaultCellStyle Proprietà

public:
 property System::Windows::Forms::DataGridViewCellStyle ^ RowHeadersDefaultCellStyle { System::Windows::Forms::DataGridViewCellStyle ^ get(); void set(System::Windows::Forms::DataGridViewCellStyle ^ value); };

public System.Windows.Forms.DataGridViewCellStyle RowHeadersDefaultCellStyle { get; set; }

member this.RowHeadersDefaultCellStyle : System.Windows.Forms.DataGridViewCellStyle with get, set

Public Property RowHeadersDefaultCellStyle As DataGridViewCellStyle

Valore della proprietà

Oggetto DataGridViewCellStyle che rappresenta lo stile predefinito applicato alle celle dell'intestazione di riga.

Esempio

Nell'esempio di codice seguente viene illustrato come usare questa proprietà in un DataGridView oggetto con colori personalizzati. Si noti come la DataGridViewCellStyle.SelectionBackColor proprietà è impostata su Color.Empty in modo che il valore venga ereditato dall'oggetto DefaultCellStyle .

Questo esempio fa parte di un esempio più grande fornito nella panoramica della DataGridViewCellStyle classe.

// Configures the appearance and behavior of a DataGridView control.
private void InitializeDataGridView()
{
    // Initialize basic DataGridView properties.
    dataGridView1.Dock = DockStyle.Fill;
    dataGridView1.BackgroundColor = Color.LightGray;
    dataGridView1.BorderStyle = BorderStyle.Fixed3D;

    // Set property values appropriate for read-only display and 
    // limited interactivity. 
    dataGridView1.AllowUserToAddRows = false;
    dataGridView1.AllowUserToDeleteRows = false;
    dataGridView1.AllowUserToOrderColumns = true;
    dataGridView1.ReadOnly = true;
    dataGridView1.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
    dataGridView1.MultiSelect = false;
    dataGridView1.AutoSizeRowsMode = DataGridViewAutoSizeRowsMode.None;
    dataGridView1.AllowUserToResizeColumns = false;
    dataGridView1.ColumnHeadersHeightSizeMode = 
        DataGridViewColumnHeadersHeightSizeMode.DisableResizing;
    dataGridView1.AllowUserToResizeRows = false;
    dataGridView1.RowHeadersWidthSizeMode = 
        DataGridViewRowHeadersWidthSizeMode.DisableResizing;

    // Set the selection background color for all the cells.
    dataGridView1.DefaultCellStyle.SelectionBackColor = Color.White;
    dataGridView1.DefaultCellStyle.SelectionForeColor = Color.Black;

    // Set RowHeadersDefaultCellStyle.SelectionBackColor so that its default
    // value won't override DataGridView.DefaultCellStyle.SelectionBackColor.
    dataGridView1.RowHeadersDefaultCellStyle.SelectionBackColor = Color.Empty;

    // Set the background color for all rows and for alternating rows. 
    // The value for alternating rows overrides the value for all rows. 
    dataGridView1.RowsDefaultCellStyle.BackColor = Color.LightGray;
    dataGridView1.AlternatingRowsDefaultCellStyle.BackColor = Color.DarkGray;

    // Set the row and column header styles.
    dataGridView1.ColumnHeadersDefaultCellStyle.ForeColor = Color.White;
    dataGridView1.ColumnHeadersDefaultCellStyle.BackColor = Color.Black;
    dataGridView1.RowHeadersDefaultCellStyle.BackColor = Color.Black;

    // Set the Format property on the "Last Prepared" column to cause
    // the DateTime to be formatted as "Month, Year".
    dataGridView1.Columns["Last Prepared"].DefaultCellStyle.Format = "y";

    // Specify a larger font for the "Ratings" column. 
    using (Font font = new Font(
        dataGridView1.DefaultCellStyle.Font.FontFamily, 25, FontStyle.Bold))
    {
        dataGridView1.Columns["Rating"].DefaultCellStyle.Font = font;
    }

    // Attach a handler to the CellFormatting event.
    dataGridView1.CellFormatting += new
        DataGridViewCellFormattingEventHandler(dataGridView1_CellFormatting);
}

' Configures the appearance and behavior of a DataGridView control.
Private Sub InitializeDataGridView()

    ' Initialize basic DataGridView properties.
    dataGridView1.Dock = DockStyle.Fill
    dataGridView1.BackgroundColor = Color.LightGray
    dataGridView1.BorderStyle = BorderStyle.Fixed3D

    ' Set property values appropriate for read-only display and 
    ' limited interactivity. 
    dataGridView1.AllowUserToAddRows = False
    dataGridView1.AllowUserToDeleteRows = False
    dataGridView1.AllowUserToOrderColumns = True
    dataGridView1.ReadOnly = True
    dataGridView1.SelectionMode = DataGridViewSelectionMode.FullRowSelect
    dataGridView1.MultiSelect = False
    dataGridView1.AutoSizeRowsMode = DataGridViewAutoSizeRowsMode.None
    dataGridView1.AllowUserToResizeColumns = False
    dataGridView1.ColumnHeadersHeightSizeMode = _
        DataGridViewColumnHeadersHeightSizeMode.DisableResizing
    dataGridView1.AllowUserToResizeRows = False
    dataGridView1.RowHeadersWidthSizeMode = _
        DataGridViewRowHeadersWidthSizeMode.DisableResizing

    ' Set the selection background color for all the cells.
    dataGridView1.DefaultCellStyle.SelectionBackColor = Color.White
    dataGridView1.DefaultCellStyle.SelectionForeColor = Color.Black

    ' Set RowHeadersDefaultCellStyle.SelectionBackColor so that its default
    ' value won't override DataGridView.DefaultCellStyle.SelectionBackColor.
    dataGridView1.RowHeadersDefaultCellStyle.SelectionBackColor = Color.Empty

    ' Set the background color for all rows and for alternating rows. 
    ' The value for alternating rows overrides the value for all rows. 
    dataGridView1.RowsDefaultCellStyle.BackColor = Color.LightGray
    dataGridView1.AlternatingRowsDefaultCellStyle.BackColor = Color.DarkGray

    ' Set the row and column header styles.
    dataGridView1.ColumnHeadersDefaultCellStyle.ForeColor = Color.White
    dataGridView1.ColumnHeadersDefaultCellStyle.BackColor = Color.Black
    dataGridView1.RowHeadersDefaultCellStyle.BackColor = Color.Black

    ' Set the Format property on the "Last Prepared" column to cause
    ' the DateTime to be formatted as "Month, Year".
    dataGridView1.Columns("Last Prepared").DefaultCellStyle.Format = "y"

    ' Specify a larger font for the "Ratings" column. 
    Dim font As New Font( _
        dataGridView1.DefaultCellStyle.Font.FontFamily, 25, FontStyle.Bold)
    Try
        dataGridView1.Columns("Rating").DefaultCellStyle.Font = font
    Finally
        font.Dispose()
    End Try

End Sub

Commenti

Il valore predefinito DataGridViewCellStyle restituito da questa proprietà include i valori di proprietà iniziali seguenti.

Questi valori eseguono automaticamente l'override dei valori impostati tramite la DefaultCellStyle proprietà . Per forzare le intestazioni di riga per ereditare i DefaultCellStyle valori, è necessario impostare i valori nell'oggetto RowHeadersDefaultCellStyle sui valori predefiniti indicati per la DataGridViewCellStyle classe.

Per altre informazioni sull'ereditarietà dello stile della cella, vedere Stili di cella nel controllo DataGridView Windows Forms.

Si applica a

Vedi anche

• DataGridViewCellStyle
• Controllo DataGridView (Windows Form)
• Stili della cella nel controllo DataGridView Windows Form