DataGridView合并列标题
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下面的示例实现如下形式的列标题合并。
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| January | February | March |
| Win | Loss | Win | Loss | Win | Loss |
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Team1 | | | | | | |
Team2 | | | | | | |
Team3 | | | | | | |
-----------------------------------------------------------------
部分代码:
public partial class DgvColumnHeaderMerge : Form { public DgvColumnHeaderMerge() { InitializeComponent(); } private void DgvColumnHeaderMerge_Load(object sender, EventArgs e) { this.dataGridView1.Columns.Add("JanWin", "Win"); this.dataGridView1.Columns.Add("JanLoss", "Loss"); this.dataGridView1.Columns.Add("FebWin", "Win"); this.dataGridView1.Columns.Add("FebLoss", "Loss"); this.dataGridView1.Columns.Add("MarWin", "Win"); this.dataGridView1.Columns.Add("MarLoss", "Loss"); for (int j = 0; j < this.dataGridView1.ColumnCount; j++) { this.dataGridView1.Columns[j].Width = 45; } this.dataGridView1.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.EnableResizing; this.dataGridView1.ColumnHeadersHeight = this.dataGridView1.ColumnHeadersHeight * 2; this.dataGridView1.ColumnHeadersDefaultCellStyle.Alignment = DataGridViewContentAlignment.BottomCenter; this.dataGridView1.CellPainting += new DataGridViewCellPaintingEventHandler(dataGridView1_CellPainting); this.dataGridView1.Paint += new PaintEventHandler(dataGridView1_Paint); } void dataGridView1_Paint(object sender, PaintEventArgs e) { string[] monthes = { "January", "February", "March" }; for (int j = 0; j < 6;) { Rectangle r1 = this.dataGridView1.GetCellDisplayRectangle(j, -1, true); //get the column header cell r1.X += 1; r1.Y += 1; r1.Width = r1.Width * 2 - 2; r1.Height = r1.Height / 2 - 2; e.Graphics.FillRectangle(new SolidBrush(this.dataGridView1.ColumnHeadersDefaultCellStyle.BackColor), r1); StringFormat format = new StringFormat(); format.Alignment = StringAlignment.Center; format.LineAlignment = StringAlignment.Center; e.Graphics.DrawString(monthes[j/2], this.dataGridView1.ColumnHeadersDefaultCellStyle.Font, new SolidBrush(this.dataGridView1.ColumnHeadersDefaultCellStyle.ForeColor), r1, format); j += 2; } } void dataGridView1_CellPainting(object sender, DataGridViewCellPaintingEventArgs e) { if (e.RowIndex == -1 && e.ColumnIndex > -1) { e.PaintBackground(e.CellBounds, false); Rectangle r2 = e.CellBounds; r2.Y += e.CellBounds.Height / 2; r2.Height = e.CellBounds.Height / 2; e.PaintContent(r2); e.Handled = true; } } }
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http://blog.csdn.net/stuqbx
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