DataGridView 复选框 操作大全

1             DataGridViewCheckBoxColumn dtCheck = new DataGridViewCheckBoxColumn();


2             dtCheck.DataPropertyName = "check";


3             dtCheck.HeaderText = "";


4             dataGridView1.Columns.Add(dtCheck);


5             dataGridView1.DataSource = DataTable;

6            

以上代码 是在DataGridView中添加复选框

 1  private void chkBox_CheckedChanged(object sender, EventArgs e)

 2         {

 3             if (this.chkBox.Checked == true)

 4             {

 5                 for (int i = 0; i < dataGridView1.Rows.Count; i++)

 6                 {

 7                     this.dataGridView1.Rows[i].Cells[0].Value = true;

 8                 }

 9             }

10             else

11             {

12                 for (int i = 0; i < dataGridView1.Rows.Count; i++)

13                 {

14                     this.dataGridView1.Rows[i].Cells[0].Value = false;

15                 }

16             } //       this.dataGridView1.Rows[i].Cells[0].Value =false;  

17 

18         }

以上是一个CheckBox 单击事件 用作于 全选/反选

1 DataTable dt = (DataTable)dataGridView1.DataSource;

2 //使用方法

3 foreach(DataRow row in dt.Rows)

4 {

5       if (row["check"].ToString() == "True")

6       {

7           //处理方式

8       }

9 }

以上是后台代码操作过程 被选中的CheckBox 自己想怎么处理就怎么写

注：如果需要使复选框不能多选时，将DataGridView 的CellValueChanged事件和CurrentCellDirtyStateChanged事件

 1 private void dataGridView1_CurrentCellDirtyStateChanged(object sender, EventArgs e)

 2         {

 3             DataGridView dgv = (DataGridView)sender;

 4             if (dgv.IsCurrentCellDirty)

 5             {

 6                 dgv.CommitEdit(DataGridViewDataErrorContexts.Commit);

 7             }

 8         }

 9 private void dataGridView1_CellValueChanged(object sender, DataGridViewCellEventArgs e)

10         {

11             if (e.ColumnIndex == 0)

12             {

13                 DataGridView dgv = (DataGridView)sender;

14                 DataTable dt = (DataTable)dgv.DataSource;

15                 DataGridViewCheckBoxCell checkCell = (DataGridViewCheckBoxCell)dgv.Rows[e.RowIndex].Cells[0];

16                 bool value = (Boolean)checkCell.Value;

17                 for (int i = 0; i < dt.Rows.Count; i++)

18                 {

19                     DataRow row = dt.Rows[i];

20                     if (i != e.RowIndex && value)

21                     {

22                         row["check"] = false;

23                     }

24                 }

25                 dgv.Invalidate();

26             }

27         }

View Code

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dataGridView1中复选框批量选中 

1、dataGridView1.SelectionMode = 'FullRowSelect ' // dataGridView1 可以选中整行

2、添加一个contextMenuStrip1 控件    //右键菜单

 选择 的name = 'SelectToolStripMenuItem'

3、dataGridView1添加CellMouseDown事件 代码如下

 1   private void dataGridView1_CellMouseDown(object sender, DataGridViewCellMouseEventArgs e)

 2         {

 3             if (e.Button == MouseButtons.Right)

 4             {

 5                 if (e.RowIndex >= 0)

 6                 {

 7                     //若行已是选中状态就不再进行设置

 8                     if (dataGridView1.Rows[e.RowIndex].Selected == false)

 9                     {

10                         dataGridView1.ClearSelection();

11                         dataGridView1.Rows[e.RowIndex].Selected = true;

12                     }

13                     //只选中一行时设置活动单元格

14                     if (dataGridView1.SelectedRows.Count == 1)

15                     {

16                         dataGridView1.CurrentCell = dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex];

17                     }

18                     //弹出操作菜单

19                     contextMenuStrip1.Show(MousePosition.X, MousePosition.Y);

20                 }

21             }

22         }

4、添加SelectToolStripMenuItem的Click 事件 代码如下

 1  private void SelectToolStripMenuItem_Click(object sender, EventArgs e)

 2         {

 3            foreach (var item in this.dataGridView1.SelectedRows)

 4            {

 5                int i = ((System.Windows.Forms.DataGridViewBand)((DataGridViewRow)item)).Index;

 6            

 7                this.dataGridView1.Rows[i].Cells[0].Value = true;

 8 

 9            }

10         }

这样 我们就完成批量选中复选框的功能了