DataGridView, DataGridViewColumn, DataGridViewRow, DataGridViewCell has the ContextMenuStrip attribute. You can control the display of the right-click menu of DataGridView by setting the ContextMenuStrip object.
The ContextMenuStrip property of DataGridViewColumn sets the right-click menu for cells other than column headers.
The ContextMenuStrip property of DataGridViewRow sets the right-click menu of cells other than the line header.
The ContextMenuStrip property of DataGridViewCell sets the right-click menu of the specified cell.
For the settings of the right-click menu on the cell, the priority order is:Cell>Row>Column>DataGridView
Use the CellContextMenuStripNeeded and RowContextMenuStripNeeded events to set the right-click menu of a cell, especially when the right-click menu needs to change according to the change of cell value. Using this event to set the right-click menu is more efficient than using loop traversal.
Description: In the parameters of the CellContextMenuStripNeeded event processing method, =-1 represents the column header and =-1 represents the row header. RowContextMenuStripNeeded does not exist =-1.
Example 1:
//Set the right-click menu of DataGridViewthis.dgv_Users.ContextMenuStrip = cmsDgv; // Set the column's right-click menuthis.dgv_Users.Columns[1].ContextMenuStrip = cmsColumn; //Set the right-click menu of column headerthis.dgv_Users.Columns[1]. = cmsHeaderCell; // Set the right-click menu of the linethis.dgv_Users.Rows[2].ContextMenuStrip = cmsRow; // Set the right-click menu of the cellthis.dgv_Users[1, 2].ContextMenuStrip = cmsCell;
Example 2:
private void dgv_Users_CellContextMenuStripNeeded(object sender, DataGridViewCellContextMenuStripNeededEventArgs e)
{
DataGridView dgv = sender as DataGridView;
if ( < 0)
{
//Set the column header right key = cmsHeaderCell;
}
else if ( < 0)
{
//Set the line header menu = cmsRow;
}
else if (dgv[, ].().Equals("male"))
{
= cmsCell;
}
else
{
= cmsDgv;
}
}
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