Question

winform中如何让datagridview自动显示行号

Answer 1

public Form1()
{
    InitializeComponent();
    this.dataGridView1 .RowsAdded+=new DataGridViewRowsAddedEventHandler(dataGridView1_RowsAdded);
}

private void dataGridView1_RowsAdded(object sender, DataGridViewRowsAddedEventArgs e)
{
    for (int i = 0; i < e.RowCount; i++)
        this.dataGridView1.Rows[e.RowIndex + i].HeaderCell.Value = (e.RowIndex + i + 1).ToString();
}

Answer 2

winform中让datagridview自动显示行号代码如下：
private void gvPurchaseOrder_RowPostPaint(object sender, DataGridViewRowPostPaintEventArgs e)
{
using (SolidBrush b = new SolidBrush(this.gvPurchaseOrder.RowHeadersDefaultCellStyle.ForeColor))
{
e.Graphics.DrawString(Convert.ToString(e.RowIndex + 1, CultureInfo.CurrentUICulture),
e.InheritedRowStyle.Font, b, e.RowBounds.Location.X + 20, e.RowBounds.Location.Y + 4);
}
}