Hi Jozsef,
Thank you for your interest in Syncfusion products.
By design, MultiColumnTreeView does not allow to add a Filter row and filter in Column. Please try using ComboBox in Application to show the filter behavior in MutiColumnTreeView as shown below.
public Form1()
{
InitializeComponent();
this.multiColumnTreeView1.Paint += new PaintEventHandler(multiColumnTreeView1_Paint);
}
void multiColumnTreeView1_Paint(object sender, PaintEventArgs e)
{
Rectangle rec = this.multiColumnTreeView1.Columns[0].Bounds;
this.comboBoxAdv1.Size = rec.Size;
Point loc = this.multiColumnTreeView1.Location;
this.comboBoxAdv1.Location = new Point(loc.X + rec.Location.X, loc.Y + rec.Location.Y);
this.comboBoxAdv1.Refresh();
}
Refer the sample from following link.
http://www.syncfusion.com/uploads/redirect.aspx?&team=support&file=MutiColumnTree-507330947.zipPlease let me know if you have any queries.
Regards,
Lingaraj S.