在DataGridView中添加行号
今天用C#2.0开发一个WinForm项目时,碰到一个在DataGridView中加行号的问题,找了一些资料,终于搞定。现把它贴出来供大家参考。
参考:http://community.csdn.net/Expert/topic/4671/4671416.xml?temp=.1845667
这里提到了两种方法:
一、在数据加载后,用下面的代码:
1 for (int i = 0; i < DataGridView1.Rows.Count; i++)
2 {
3 int j = i + 1;
4 DataGridView1.Rows[i].HeaderCell.Value = j.ToString();
5 }
6 DataGridView1.AutoResizeRowHeadersWidth(DataGridViewRowHeadersWidthSizeMode.AutoSizeToAllHeaders);
2 {
3 int j = i + 1;
4 DataGridView1.Rows[i].HeaderCell.Value = j.ToString();
5 }
6 DataGridView1.AutoResizeRowHeadersWidth(DataGridViewRowHeadersWidthSizeMode.AutoSizeToAllHeaders);
这样当窗体第一次加载显示时,行号不会出现,于是试了第二种方法,加上自己改了一点。
二、在DataGridView的RowPostPaint事件中加入下面的代码:
1 private void DataGridView1_RowPostPaint(object sender, DataGridViewRowPostPaintEventArgs e)
2 {
3 Color color = DataGridView1.RowHeadersDefaultCellStyle.ForeColor;
4 if (DataGridView1.Rows[e.RowIndex].Selected)
5 color = DataGridView1.RowHeadersDefaultCellStyle.SelectionForeColor;
6 else
7 color = DataGridView1.RowHeadersDefaultCellStyle.ForeColor;
8
9 using (SolidBrush b = new SolidBrush(color))
10 {
11 e.Graphics.DrawString((e.RowIndex+1).ToString(), e.InheritedRowStyle.Font, b, e.RowBounds.Location.X+20, e.RowBounds.Location.Y+6);
12 }
13 }
OK,搞定,效果还令人满意!
2 {
3 Color color = DataGridView1.RowHeadersDefaultCellStyle.ForeColor;
4 if (DataGridView1.Rows[e.RowIndex].Selected)
5 color = DataGridView1.RowHeadersDefaultCellStyle.SelectionForeColor;
6 else
7 color = DataGridView1.RowHeadersDefaultCellStyle.ForeColor;
8
9 using (SolidBrush b = new SolidBrush(color))
10 {
11 e.Graphics.DrawString((e.RowIndex+1).ToString(), e.InheritedRowStyle.Font, b, e.RowBounds.Location.X+20, e.RowBounds.Location.Y+6);
12 }
13 }