拖放datagridview整行 [英] drag and drop datagridview entire row
本文介绍了拖放datagridview整行的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我使用了这段代码但没有在datagridview中拖放行
private Rectangle dragBoxFromMouseDown ;
private int rowIndexFromMouseDown;
private int rowIndexOfItemUnderMouseToDrop;
private void dgvPARs_MouseMove（object sender，MouseEventArgs e）
{
if（（e.Button& MouseButtons.Left）== MouseButtons .Left）
{
//如果鼠标移动到矩形外，请开始拖动。
if（dragBoxFromMouseDown！= Rectangle.Empty&&
！dragBoxFromMouseDown.Contains（eX，eY））
{
//继续拖动drop，传入列表项。
DragDropEffects dropEffect = dgvPARs.DoDragDrop（
dgvPARs.Rows [rowIndexFromMouseDown]，
DragDropEffects.Move）;
}
}
}
private void dgvPARs_MouseDown（object sender，MouseEventArgs e）
{
rowIndexFromMouseDown = dgvPARs.HitTest（eX，eY）.RowIndex;
if（rowIndexFromMouseDown！= -1）
{
//记住鼠标按下的位置。
// DragSize指示在应该启动拖动事件之前鼠标可以移动的大小
//。
大小dragSize = SystemInformation.DragSize;
//使用DragSize创建一个矩形，鼠标位置为
//位于矩形的中心。
dragBoxFromMouseDown = new Rectangle（new Point（e.X - （dragSize.Width / 2），
e.Y - （dragSize.Height / 2）），
dragSize）;
}
else
//如果鼠标不在ListBox中的项目上，则重置矩形。
dragBoxFromMouseDown = Rectangle.Empty;
}
private void dgvPARs_DragOver（object sender，DragEventArgs e）
{
e.Effect = DragDropEffects。移动;
}
private void dgvPARs_DragDrop（object sender，DragEventArgs e）
{
Point clientPoint = dgvPARs.PointToClient （新点（eX，eY））;
//获取鼠标位于下方的项目的行索引。
rowIndexOfItemUnderMouseToDrop =
dgvPARs.HitTest（clientPoint.X，clientPoint.Y）.RowIndex;
//如果拖动操作是移动，则删除并插入行。
if（e.Effect == DragDropEffects.Move）
{
DataGridViewRow rowToMove = e.Data.GetData（
typeof（DataGridViewRow））as DataGridViewRow;
dgvPARs.Rows.RemoveAt（rowIndexFromMouseDown）;
dgvPARs.Rows.Insert（rowIndexOfItemUnderMouseToDrop，rowToMove）;
}
}
< b> [Agent_Spock]已添加代码块
解决方案
查看此文章
http://dotprogramming.blogspot.com/2013/12/moving-datagridview-records-csharp-winforms.html [ ^ ]
I used this code but not getting to drag and drop rows in datagridview
private Rectangle dragBoxFromMouseDown;
private int rowIndexFromMouseDown;
private int rowIndexOfItemUnderMouseToDrop;
private void dgvPARs_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 = dgvPARs.DoDragDrop(
dgvPARs.Rows[rowIndexFromMouseDown],
DragDropEffects.Move);
}
}
}
private void dgvPARs_MouseDown(object sender, MouseEventArgs e)
{
rowIndexFromMouseDown = dgvPARs.HitTest(e.X, e.Y).RowIndex;
if (rowIndexFromMouseDown != -1)
{
// Remember the point where the mouse down occurred.
// The DragSize indicates the size that the mouse can move
// before a drag event should be started.
Size dragSize = SystemInformation.DragSize;
// Create a rectangle using the DragSize, with the mouse position being
// at the center of the rectangle.
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 dgvPARs_DragOver(object sender, DragEventArgs e)
{
e.Effect = DragDropEffects.Move;
}
private void dgvPARs_DragDrop(object sender, DragEventArgs e)
{
Point clientPoint = dgvPARs.PointToClient(new Point(e.X, e.Y));
// Get the row index of the item the mouse is below.
rowIndexOfItemUnderMouseToDrop =
dgvPARs.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;
dgvPARs.Rows.RemoveAt(rowIndexFromMouseDown);
dgvPARs.Rows.Insert(rowIndexOfItemUnderMouseToDrop, rowToMove);
}
}
[Agent_Spock] Added Code block
解决方案
See this article
http://dotprogramming.blogspot.com/2013/12/moving-datagridview-records-csharp-winforms.html[^]
这篇关于拖放datagridview整行的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
查看全文
