Winforms 释放鼠标左键后如何设置行选择?
我有一个datagridview。在这个gridview中,当我左键单击并按住该行并将其拖放到另一行时,它工作正常,但行的选择保持不变 如果我选择第2行并将其拖动到第4行,第2行将下降到位置4,但行选择保持不变。我希望当我把它放到第4行时,选中的行应该是第4行 我已经为拖放功能编写了一些代码Winforms 释放鼠标左键后如何设置行选择?,winforms,c#-4.0,Winforms,C# 4.0,我有一个datagridview。在这个gridview中,当我左键单击并按住该行并将其拖放到另一行时,它工作正常,但行的选择保持不变 如果我选择第2行并将其拖动到第4行,第2行将下降到位置4,但行选择保持不变。我希望当我把它放到第4行时,选中的行应该是第4行 我已经为拖放功能编写了一些代码 private void dataGridView1_MouseMove(object sender, MouseEventArgs e) { if ((e.Button & MouseBu
private void dataGridView1_MouseMove(object sender, MouseEventArgs e)
{
if ((e.Button & MouseButtons.Left) == MouseButtons.Left)
{
// If the mouse moves outside the rectangle, start the drag.
if (dragBoxFromMouseDown != Rectangle.Empty &&
!dragBoxFromMouseDown.Contains(e.X, e.Y))
{
// Proceed with the drag and drop, passing in the list item.
DragDropEffects dropEffect = dataGridView1.DoDragDrop(
dataGridView1.Rows[rowIndexFromMouseDown],
DragDropEffects.Move);
}
}
}
private void dataGridView1_MouseDown(object sender, MouseEventArgs e)
{
rowIndexFromMouseDown = dataGridView1.HitTest(e.X, e.Y).RowIndex;
if (rowIndexFromMouseDown != -1)
{
Size dragSize = SystemInformation.DragSize;
dragBoxFromMouseDown = new Rectangle(new Point(e.X - (dragSize.Width / 2),
e.Y - (dragSize.Height / 2)),
dragSize);
}
else
// Reset the rectangle if the mouse is not over an item in the ListBox.
dragBoxFromMouseDown = Rectangle.Empty;
}
private void dataGridView1_DragOver(object sender, DragEventArgs e)
{
e.Effect = DragDropEffects.Move;
}
private void dataGridView1_DragDrop(object sender, DragEventArgs e)
{
Point clientPoint = dataGridView1.PointToClient(new Point(e.X, e.Y));
// Get the row index of the item the mouse is below.
rowIndexOfItemUnderMouseToDrop =
dataGridView1.HitTest(clientPoint.X, clientPoint.Y).RowIndex;
// If the drag operation was a move then remove and insert the row.
if (e.Effect== DragDropEffects.Move)
{
DataGridViewRow rowToMove = e.Data.GetData(
typeof(DataGridViewRow)) as DataGridViewRow;
dataGridView1.Rows.RemoveAt(rowIndexFromMouseDown);
dataGridView1.Rows.Insert(rowIndexOfItemUnderMouseToDrop, rowToMove);
}
}
添加行
dataGridView1.Rows[rowIndexOfItemUnderMouseToDrop].Selected = true;
dataGridView1.Rows[rowIndexFromMouseDown].Selected = false;
在dataGridView1的末尾,拖动DragDrop,以便更改选择。您有问题地更改了行,这意味着dataGridView的选择没有随之更改。虽然有问题地更准确,但我猜您的意思是programmatically@Cyborgx372确实是这样:dataGridView1.Rows[rowIndexOfItemUnderMouseToDrop].Selected=true@AmitKumar你想说什么?他建议你使用类似于:rowIndexOfItemUnderMouseToDrop=dataGridView1.hitte.X,e.Y.RowIndex;其中e.X,e.Y是从以下位置获取的坐标:private void dataGridView1_CellMouseUpobject sender、DataGridViewCellMouseEventArgs e