DataGridViewRowCollection.GetRowCount(DataGridViewElementStates) 方法

定義

命名空間:

System.Windows.Forms

組件:

System.Windows.Forms.dll

傳回集合中符合指定準則的 DataGridViewRow 物件數目。

public:
 int GetRowCount(System::Windows::Forms::DataGridViewElementStates includeFilter);

public int GetRowCount (System.Windows.Forms.DataGridViewElementStates includeFilter);

member this.GetRowCount : System.Windows.Forms.DataGridViewElementStates -> int

Public Function GetRowCount (includeFilter As DataGridViewElementStates) As Integer

參數

includeFilter

DataGridViewElementStates

DataGridViewElementStates 值的位元組合。

傳回

Int32

DataGridViewRowCollection 中的 DataGridViewRow 物件數目，該物件具有 includeFilter 所指定的屬性。

例外狀況

ArgumentException

includeFilter 不是 DataGridViewElementStates 值的有效位元組合。

範例

下列程式碼範例說明如何使用這個方法來取得選取的資料列數目。

private void selectedRowsButton_Click(object sender, System.EventArgs e)
{
    Int32 selectedRowCount =
        dataGridView1.Rows.GetRowCount(DataGridViewElementStates.Selected);
    if (selectedRowCount > 0)
    {
        System.Text.StringBuilder sb = new System.Text.StringBuilder();

        for (int i = 0; i < selectedRowCount; i++)
        {
            sb.Append("Row: ");
            sb.Append(dataGridView1.SelectedRows[i].Index.ToString());
            sb.Append(Environment.NewLine);
        }

        sb.Append("Total: " + selectedRowCount.ToString());
        MessageBox.Show(sb.ToString(), "Selected Rows");
    }
}

Private Sub selectedRowsButton_Click( _
    ByVal sender As Object, ByVal e As System.EventArgs) _
    Handles selectedRowsButton.Click

    Dim selectedRowCount As Integer = _
        dataGridView1.Rows.GetRowCount(DataGridViewElementStates.Selected)

    If selectedRowCount > 0 Then

        Dim sb As New System.Text.StringBuilder()

        Dim i As Integer
        For i = 0 To selectedRowCount - 1

            sb.Append("Row: ")
            sb.Append(dataGridView1.SelectedRows(i).Index.ToString())
            sb.Append(Environment.NewLine)

        Next i

        sb.Append("Total: " + selectedRowCount.ToString())
        MessageBox.Show(sb.ToString(), "Selected Rows")

    End If

End Sub

另請參閱

• DataGridView
• DataGridViewRow