winform dataGridview 为每一个单元格制定一个tooptip

1.为每一个单元格制定一个tooptip提示，当鼠标移到单元格时，自动弹出提示框。

界面如下：

1，代码如下，

   先设置鼠标移到单元格的行号和列号：

    public partial class DataGridViewMerge : Form
2     {
3         private int CellColumnIndex { get; set; }
4         private int CellRowIndex { get; set; }

 设置鼠标进入单元格显示tooltip工具窗口。

如下：

 1  private void dgv1_CellMouseEnter(object sender, DataGridViewCellEventArgs e)
 2         {
 3             if (e.RowIndex < 0 || e.ColumnIndex < 0)
 4             {
 5                 return;
 6             }
 7            
 8             this.toolTip1.Hide(this.dgv1);
 9 
10             this.CellColumnIndex = e.ColumnIndex;
11             this.CellRowIndex = e.RowIndex;
12             if (this.CellColumnIndex >= 0 && this.CellRowIndex >= 0)
13             {
14               int dgvY = dgv1.Location.Y;
15                 int dgvX = dgv1.Location.X;
16                 int cellX = dgv1.GetCellDisplayRectangle(CellColumnIndex,CellRowIndex,false).X;
17                 int cellY = dgv1.GetCellDisplayRectangle(CellColumnIndex,CellRowIndex,false).Y;
18                 int x = dgvX + cellX;
19                 int y = dgvY + cellY+5; 
20                 DataGridViewCell dgvc = this.dgv1[this.CellColumnIndex, this.CellRowIndex];
21                // Point mousePos = PointToClient(MousePosition);
22                 Point mousePos = new Point(x, y);
23                  Rectangle rec = dgvc.ContentBounds;
24                 string tip = "Tip is " + dgvc.Value.ToString()+" "+x+" "+y;
25  
26                 this.toolTip1.Show(tip, this.dgv1, mousePos);
27                 
28 
29             }
30              
31         }

 鼠标离开单元格时，隐藏tooltip

代码如下：

   private void dgv1_CellMouseLeave(object sender, DataGridViewCellEventArgs e)
        {
            this.toolTip1.Hide(this.dgv1);
        }

 

 

参考：tooltip汇总