WinForm中给GridView加checkbox

一,如果数据源中有bool类型的列,在绑定之后会自动以checkbox的形式显示, 如果你的是这种情况,只需要在点击button的时候遍历判断即可. 如果数据源中没有可以采用下列方式添加:
ps:数据源为DataTable

C# code

//Add a Column with checkbox at last in the Grid DataColumn dtcCheck = new DataColumn("IsMandatory");//create the data //column object with the name dtcCheck.DataType = System.Type.GetType("System.Boolean");//Set its //data Type dtcCheck.DefaultValue = false;//Set the default value DataTable.Columns.Add(dtcCheck);//Add the above column to the //Data Table

二,数据源中没有,只是在DataGridView中存在. 手动添加为:右键点datagridview，编辑列，添加，设置其类型为datagridviewcheckbox
代码添加如下:

C# code

this.dataGridView1.Columns.Insert(0, new DataGridViewCheckBoxColumn()); for (int i = 0; i < this.dataGridView1.Rows.Count; i++) { //为datagridviewcheckbox列赋值 this.dataGridView1.Rows[i].Cells[0].Value = true; }

在DataGridView的CellContentClick事件下写
C# code

private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e) { //判断点的是否是datagridviewcheckbox列并且不是列头 if (e.ColumnIndex == 0 && e.RowIndex != -1) { //dataGridView1.Rows[e.RowIndex].Cells[0].Value = (bool)dataGridView1.Rows[e.RowIndex].Cells[0].EditedFormattedValue; //两种皆可 dataGridView1.Rows[e.RowIndex].Cells[0].Value = !(bool)dataGridView1.Rows[e.RowIndex].Cells[0].Value; } }

在button的Click事件下:

C# code

private void button_Click(object sender, EventArgs e) { for (int i = 0; i < this.dataGridView1.Rows.Count; i++) { if ((bool)this.dataGridView1.Rows[i].Cells[0].Value) MessageBox.Show("选择的是第 " + (i+1).ToString()+" 行"); }

 

#region 选择该行的CheckBox private void gvInfo_CellContentClick(object sender, DataGridViewCellEventArgs e) { //判断点的是否是datagridviewcheckbox列并且不是列头 if (e.ColumnIndex == 0 && e.RowIndex != -1) { //清空之前的所有选择 for (int i = 0; i < gvInfo.Rows.Count; i++) { gvInfo.Rows[i].Cells[0].Value = false; } //勾选该行 gvInfo.Rows[e.RowIndex].Cells[0].Value = true; //获取选中行的值 string strValue = gvInfo.Rows[e.RowIndex].Cells[1].Value.ToString(); } } #endregion