DevExpress GridView提示之欄位標題點擊事件

標籤：

在這裡使用GridView的MouseDown事件。這裡同樣使用的是GridHitInfo來擷取點擊位置的資訊，來判斷是否在欄位標題上。GridHitInfo根據滑鼠點擊的x、y座標擷取該點的相關資訊，判斷是否點擊在欄位標題行內。

private void gridView_MouseDown(object sender, MouseEventArgs e)          {              //滑鼠左鍵點擊              if (e.Button == MouseButtons.Left)              {                  GridHitInfo info = gridView.CalcHitInfo(e.X, e.Y);                  //在欄位標題欄內且欄位標題name是"colName"                  if (info.InColumnPanel && info.Column.Name =="colName")                  {                      XtraMessageBox.Show("點擊Name欄位標題！");                  }              }          }以上代碼很簡單，但是有個小問題，就是在該列右邊線拖動這一列的列寬時，也會彈出對話方塊，因為這裡拖動列寬也被視為點擊滑鼠。這顯然不合適。解決這個問題的辦法也很簡單，就是判斷滑鼠點擊位置不在右邊線向左移動一點距離（3像素）範圍內。下面對以上代碼稍加修改，就不會再有這個問題了。private void gridView_MouseDown(object sender, MouseEventArgs e)          {              //滑鼠左鍵點擊              if (e.Button == MouseButtons.Left)              {                  GridHitInfo gridHitInfo = gridView.CalcHitInfo(e.X, e.Y);                  //在欄位標題欄內且欄位標題name是"colName"                  if (gridHitInfo.InColumnPanel && gridHitInfo.Column.Name =="colName")                  {                      //擷取該列右邊線的x座標                      GridViewInfo gridViewInfo = (GridViewInfo)this.gridView.GetViewInfo();                      int x = gridViewInfo.GetColumnLeftCoord(gridHitInfo.Column) + gridHitInfo.Column.Width;                      //右邊線向左移動3個像素位置不彈出對話方塊（實驗證明3個像素是正好的）                      if (e.X < x - 3)                      {                          XtraMessageBox.Show("點擊Name欄位標題！");                      }                  }              }          }

DevExpress GridView提示之欄位標題點擊事件