ce 中DataGrid的编辑有点问题

roczhan 2009-6-4 09:41 楼主

一个项目中要实现DataGrid的编辑功能我的代码如下：

#region DataGrid编辑
private DataGridCell editCell;
private bool inEditMode = false;
private bool inUpdateMode = false;
private void dataGrid1_CurrentCellChanged(object sender, EventArgs e)
{
if (!inUpdateMode)
{
if (inEditMode && !dataGrid1.CurrentCell.Equals(editCell))
{
ExitEditedMode(true);
}
// Enter edit mode
editCell = dataGrid1.CurrentCell;
if (dataGrid1.CurrentCell.ColumnNumber != 2 && dataGrid1.CurrentCell.ColumnNumber!=3)
return;
txtEdit.Text = ((double)dataGrid1[editCell.RowNumber, editCell.ColumnNumber]).ToString();
Rectangle cellPos = dataGrid1.GetCellBounds(editCell.RowNumber,
editCell.ColumnNumber);
txtEdit.Left = cellPos.Left + 8;
txtEdit.Top = cellPos.Top + dataGrid1.Top - 1;
txtEdit.Width = cellPos.Width + 2;
txtEdit.Height = cellPos.Height;
txtEdit.Visible = true;
inEditMode = true;
txtEdit.Focus();
txtEdit.SelectionStart = txtEdit.Text.Length;
}
}
// Update or Cancel edited cell
private void ExitEditedMode(bool isUpdate)
{
inUpdateMode = true;
//dataGrid1.Visible = false;
DataGridCell currentCell = dataGrid1.CurrentCell;
if (isUpdate)
dataGrid1[editCell.RowNumber, editCell.ColumnNumber] = txtEdit.Text;
dataGrid1.CurrentCell = currentCell;
//dataGrid1.Visible = true;
inUpdateMode = false;
txtEdit.Visible = false;
inEditMode = false;
}
private void dataGrid1_MouseUp(object sender, MouseEventArgs e)
{
DataGrid.HitTestInfo hitTest = dataGrid1.HitTest(e.X, e.Y);
if (hitTest.Type == DataGrid.HitTestType.ColumnHeader)
{
// Exit edit mode
txtEdit.Visible = false;
inEditMode = false;
// Sort tapped column
DataTable dataTable = (DataTable)dataGrid1.DataSource;
DataView dataView = dataTable.DefaultView;
string columnName = dataTable.Columns[hitTest.Column].ColumnName;
if (dataView.Sort == columnName)
dataView.Sort = columnName + " DESC";
else
dataView.Sort = columnName;
}
}
private void txtEdit_KeyDown(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.Escape)
{
ExitEditedMode(false);
}
else if (e.KeyCode == Keys.Enter)
{
ExitEditedMode(true);
}
}
#endregion
private void txtEdit_LostFocus(object sender, EventArgs e)
{
ExitEditedMode(true);
}

原文地址是：[url=http://www.cnblogs.com/dagon007/archive/2005/05/24/161202.html][/url]

这个可以实现此功能，但是当移动滚动条时文本框不会消失，这样，会跟着滚动条跑，
我开始以为可以在文本框的焦点丢失事件中处理，可是移动滚动条时根本不会触发焦点丢失事件，
我现在有一个想法就是通过DataGrid的鼠标事件来判断是否是在拖动滚动条，但是不知道要怎么写？
求Ce版的高手帮忙看看，
或者有别的思路说说也行