DataGridView合并单元格(一列或一行)
时间: 2023-12-15 20:05:42 浏览: 24
可以通过设置 DataGridView 的 CellMerge 属性来实现合并单元格。具体步骤如下:
1. 设置需要合并的单元格的 CellMerge 属性为 DataGridViewTriState.True,例如需要合并第一列的单元格,可以使用以下代码:
```
dataGridView1.Rows[0].Cells[0].Style.Alignment = DataGridViewContentAlignment.MiddleCenter;
dataGridView1.Rows[0].Cells[0].Value = "A";
for (int i = 1; i < dataGridView1.Rows.Count; i++)
{
dataGridView1.Rows[i].Cells[0].Value = "B";
dataGridView1.Rows[i].Cells[0].Style.Alignment = DataGridViewContentAlignment.MiddleCenter;
dataGridView1.Rows[i].Cells[0].Style.ForeColor = Color.Gray;
dataGridView1.Rows[i].Cells[0].Style.BackColor = Color.LightGray;
dataGridView1.Rows[i].Cells[0].Style.SelectionBackColor = Color.LightGray;
dataGridView1.Rows[i].Cells[0].Style.SelectionForeColor = Color.Gray;
dataGridView1.Rows[i].Cells[0].Style.Padding = new Padding(10, 0, 0, 0);
dataGridView1.Rows[i].Cells[0].Style.Font = new Font(dataGridView1.Font, FontStyle.Italic);
dataGridView1.Rows[i].Cells[0].Style.CellTemplate = new DataGridViewTextBoxCell();
dataGridView1.Rows[i].Cells[0].Style.CellTemplate.Style.Alignment = DataGridViewContentAlignment.MiddleCenter;
dataGridView1.Rows[i].Cells[0].Style.CellTemplate.Style.ForeColor = Color.Gray;
dataGridView1.Rows[i].Cells[0].Style.CellTemplate.Style.BackColor = Color.LightGray;
dataGridView1.Rows[i].Cells[0].Style.CellTemplate.Style.SelectionBackColor = Color.LightGray;
dataGridView1.Rows[i].Cells[0].Style.CellTemplate.Style.SelectionForeColor = Color.Gray;
dataGridView1.Rows[i].Cells[0].Style.CellTemplate.Style.Padding = new Padding(10, 0, 0, 0);
dataGridView1.Rows[i].Cells[0].Style.CellTemplate.Style.Font = new Font(dataGridView1.Font, FontStyle.Italic);
dataGridView1.Rows[i].Cells[0].Style.CellTemplate.Style.WrapMode = DataGridViewTriState.True;
}
dataGridView1.Rows[0].Cells[0].Style.BackColor = Color.LightGray;
dataGridView1.Rows[0].Cells[0].Style.ForeColor = Color.Gray;
dataGridView1.Rows[0].Cells[0].Style.SelectionBackColor = Color.LightGray;
dataGridView1.Rows[0].Cells[0].Style.SelectionForeColor = Color.Gray;
dataGridView1.Rows[0].Cells[0].Style.WrapMode = DataGridViewTriState.True;
```
2. 设置需要合并的单元格的 RowSpan 或 ColumnSpan 属性,例如需要合并第一行的单元格,可以使用以下代码:
```
dataGridView1.Rows[0].Cells[1].Value = "C";
dataGridView1.Rows[0].Cells[1].Style.Alignment = DataGridViewContentAlignment.MiddleCenter;
dataGridView1.Rows[0].Cells[1].Style.ForeColor = Color.Gray;
dataGridView1.Rows[0].Cells[1].Style.BackColor = Color.LightGray;
dataGridView1.Rows[0].Cells[1].Style.SelectionBackColor = Color.LightGray;
dataGridView1.Rows[0].Cells[1].Style.SelectionForeColor = Color.Gray;
dataGridView1.Rows[0].Cells[1].Style.Padding = new Padding(0, 10, 0, 0);
dataGridView1.Rows[0].Cells[1].Style.Font = new Font(dataGridView1.Font, FontStyle.Italic);
dataGridView1.Rows[0].Cells[1].Style.CellTemplate = new DataGridViewTextBoxCell();
dataGridView1.Rows[0].Cells[1].Style.CellTemplate.Style.Alignment = DataGridViewContentAlignment.MiddleCenter;
dataGridView1.Rows[0].Cells[1].Style.CellTemplate.Style.ForeColor = Color.Gray;
dataGridView1.Rows[0].Cells[1].Style.CellTemplate.Style.BackColor = Color.LightGray;
dataGridView1.Rows[0].Cells[1].Style.CellTemplate.Style.SelectionBackColor = Color.LightGray;
dataGridView1.Rows[0].Cells[1].Style.CellTemplate.Style.SelectionForeColor = Color.Gray;
dataGridView1.Rows[0].Cells[1].Style.CellTemplate.Style.Padding = new Padding(0, 10, 0, 0);
dataGridView1.Rows[0].Cells[1].Style.CellTemplate.Style.Font = new Font(dataGridView1.Font, FontStyle.Italic);
dataGridView1.Rows[0].Cells[1].Style.CellTemplate.Style.WrapMode = DataGridViewTriState.True;
dataGridView1.Rows[0].Cells[1].Style.WrapMode = DataGridViewTriState.True;
dataGridView1.Rows[0].Cells[1].RowSpan = 2;
```
注意事项:
1. 合并单元格时需要注意单元格的值、样式等,需要设置合适的值和样式,以便合并后的单元格看起来更加美观。
2. 合并单元格后,不能对合并后的单元格进行编辑,否则可能会出现异常。
3. 在 CellMerge 属性中使用 DataGridViewTriState.True 表示该单元格可以合并,使用 DataGridViewTriState.False 表示该单元格不能合并,使用 DataGridViewTriState.NotSet 表示该单元格是否可以合并由 DataGridView 控件自行决定。