private void Grid_CellContextMenuStripNeeded(object sender, DataGridViewCellContextMenuStripNeededEventArgs e)
{
DataGridView grid = (sender as DataGridView);
StripDataEx data = new StripDataEx {
RowIndex = e.RowIndex,
ColIndex = e.ColumnIndex,
Grid = grid
};
if (e.RowIndex != -1)
{
// if not header add the DataBoundItem
try {
data.DataBoundItem = grid.Rows[e.RowIndex].DataBoundItem;
}
catch (Exception) {
}
}
if (e.ColumnIndex != -1)
{
data.HeaderText = grid.Columns[e.ColumnIndex].HeaderText;
if (data.DataBoundItem != null)
{
data.Getter = data.DataBoundItem.GetType().GetProperty(grid.Columns[e.ColumnIndex].DataPropertyName);
if (data.Getter != null)
{
data.ItemData = data.Getter.GetValue(data.DataBoundItem);
}
}
}
ContextStripEventArgs args = new ContextStripEventArgs {
StripDataEx = data, Added = false
};
StripDataNeeded(this, args);
if (args.ToolStripDescriptions.Count > 0)
{
ContextMenuStrip strip = new ContextMenuStrip();
string grpName = args.ToolStripDescriptions[0].GroupName;
foreach (ToolStripDescription item in args.ToolStripDescriptions)
{
if (grpName != item.GroupName)
{
strip.Items.Add(new ToolStripMenuItem("-"));
grpName = item.GroupName;
}
strip.Items.Add(item.Item);
}
e.ContextMenuStrip = strip;
}
}
private void MenuHelper_StripDataNeeded(object sender, ContextStripEventArgs args)
{
List <ToolStripItem> lst = CreateToolStripItems(args.StripDataEx);
if (lst != null)
{
foreach (ToolStripItem item in lst)
{
args.ToolStripDescriptions.Add(new ToolStripDescription {
GroupName = "Filter", GroupOrder = 10, Item = item
});
}
}
args.Added = true;
}