C# 右键单击以选择 dataGridView 中的行
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原文地址: http://stackoverflow.com/questions/16765477/
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Right click to select row in dataGridView
提问by user2396911
I need to select a row in dataGridView with right click before ContextMenu shown because contextMenu is row-dependendt.
我需要在显示 ContextMenu 之前右键单击 dataGridView 中的一行，因为 contextMenu 是行相关的。
I've tried this:
我试过这个：
if (e.Button == MouseButtons.Right)
{
var hti = dataGrid.HitTest(e.X, e.Y);
dataGrid.ClearSelection();
dataGrid.Rows[hti.RowIndex].Selected = true;
}
or:
或者：
private void dataGrid_CellMouseDown(object sender, DataGridViewCellMouseEventArgs e)
{
if (e.Button == MouseButtons.Right)
{
dataGrid.Rows[e.RowIndex].Selected = true;
dataGrid.Focus();
}
}
This works but when I try to read dataGrid.Rows[CurrentRow.Index] I see only the row selected with left click and not those selected with right click..
这有效，但是当我尝试读取 dataGrid.Rows[CurrentRow.Index] 时，我只看到左键单击选择的行，而不是右键单击选择的行。
采纳答案by Gjeltema
Try setting the current cell like this (this will set the CurrentRowproperty of the DataGridViewbefore the context menu item is selected):
尝试像这样设置当前单元格（这将设置上下文菜单项被选中之前的CurrentRow属性DataGridView）：
private void dataGridView1_CellMouseDown(object sender, DataGridViewCellMouseEventArgs e)
{
if (e.Button == MouseButtons.Right)
{
// Add this
dataGrid.CurrentCell = dataGrid.Rows[e.RowIndex].Cells[e.ColumnIndex];
// Can leave these here - doesn't hurt
dataGrid.Rows[e.RowIndex].Selected = true;
dataGrid.Focus();
}
}
回答by David Wakeman
I realize this thread is old, I just wanted to add one thing: If you want to be able to select, and perform the action, on multiple rows: you can check to see if the row you are right-clicking is already selected. This way the DataGridview behaves likes a ListView in this regard. So right clicking on a row not already selected: selects this row and open the context menu. Right clicking on a row already selected just gives you the context menu and keep the selected rows as expected.
我意识到这个线程很旧，我只想添加一件事：如果您希望能够在多行上选择并执行操作：您可以检查您右键单击的行是否已被选中。这样，DataGridview 在这方面的行为类似于 ListView。因此，右键单击尚未选择的行：选择该行并打开上下文菜单。右键单击已选择的行只会为您提供上下文菜单并按预期保留所选行。
private void dataGridView1_CellMouseDown(object sender, DataGridViewCellMouseEventArgs e)
{
if (e.RowIndex != -1 && e.ColumnIndex != -1)
{
if (e.Button == MouseButtons.Right)
{
DataGridViewRow clickedRow = (sender as DataGridView).Rows[e.RowIndex];
if (!clickedRow.Selected)
dataGridView1.CurrentCell = clickedRow.Cells[e.ColumnIndex];
var mousePosition = dataGridView1.PointToClient(Cursor.Position);
ContextMenu1.Show(dataGridView1, mousePosition);
}
}
}
回答by Mehmet Lütfi DüLKAR
private void grid_listele_CellMouseDown(object sender, DataGridViewCellMouseEventArgs e)
{
if (e.Button == MouseButtons.Right)
{
grid_listele.ClearSelection();
grid_listele[e.ColumnIndex, e.RowIndex].Selected = true;
}
}
回答by H2Five
if (e.Button == System.Windows.Forms.MouseButtons.Right)
{
var hti = GridView.HitTest(e.X, e.Y);
GridView.ClearSelection();
int index = hti.RowIndex;
if (index >= 0)
{
GridView.Rows[hti.RowIndex].Selected = true;
LockFolder_ContextMenuStrip.Show(Cursor.Position);
}
}
This is Accurate Method i Guess
这是我猜的准确方法
