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 ToolStripMenuItem CreateMenuitem(string txt, GridFilter <T> gf, StripDataEx dataEx, bool clickable = false)
{
ToolStripMenuItem item = new ToolStripMenuItem(txt);
item.Tag = new FilterStatus {
GridFilter = gf,
StripDataEx = dataEx
};
if (clickable)
{
item.Click += Item_Click;
}
return(item);
}
private List <ToolStripItem> CreateToolStripItems(StripDataEx stripDataEx)
{
List <ToolStripItem> tsList = new List <ToolStripItem>();
if (currentFilter != null)
{
ToolStripMenuItem item = CreateMenuitem("Clear Filter", null, stripDataEx, true);
tsList.Add(item);
item = CreateMenuitem(currentFilter);
tsList.Add(item);
}
if (stripDataEx.Getter != null)
{
List <GridFilter <T> > filterDescLst = new List <GridFilter <T> >();
if (Filters.TryGetValue(stripDataEx.Getter, out List <GridFilter <T> > result))
{
filterDescLst.AddRange(result);
}
if (filterDescLst.Count == 0)
{
filterDescLst.Add(EqualFilter());
}
foreach (var filterdesc in filterDescLst)
{
FilterStatus status = new FilterStatus {
GridFilter = filterdesc,
StripDataEx = stripDataEx,
IsActive = false
};
if (currentFilter == null ||
(currentFilter.GridFilter != status.GridFilter ||
currentFilter.StripDataEx.Getter != status.StripDataEx.Getter ||
currentFilter.StripDataEx.ItemData == status.StripDataEx.ItemData))
{
tsList.Add(CreateMenuitem(status));
}
}
}
return(tsList);
}
