Adding a separator to UltraCombo | Infragistics Forums

Here you go

using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Drawing.Drawing2D;using System.Text;using System.Windows.Forms; #region UltraCmbEdLnSepDrawFilter - Class

public class UltraCmbEdLnSepDrawFilter : IUIElementDrawFilter

{ #region Private Members private string drawlineafter = string.Empty; private DashStyle dashstyle = DashStyle.Solid; #endregion Private Members #region Constructor /// <summary> /// Create a Draw Filter which allows you to specify the style of the line /// </summary> public UltraCmbEdLnSepDrawFilter(DashStyle dashstyle, string drawlineafter) { this.dashstyle = dashstyle; this.drawlineafter = drawlineafter; } #endregion Constructor #region IUIElementDrawFilter Members #region GetPhasesToFilter /// <summary> /// GetPhasesToFilter - this method is passed a UIElementDrawParams structure and returns a bit flags enumeration /// called DrawPhase. The passed in structure exposes a property that returns the element to be rendered as well /// as properties and methods to support rendering operations like Graphics, BackBrush, DrawBorders etc. /// The returned DrawPhase bit-flags specify which phase(s) of the drawing operation to filter for this element /// (the DrawElement method described below will be called for each bit returned). The DrawPhase enumeration /// allows you to filter the drawing before or after each drawing operation of an element /// (e.g. theme, backcolor, image background, borders, foreground, image and/or child elements). /// </summary> DrawPhase IUIElementDrawFilter.GetPhasesToFilter(ref UIElementDrawParams drawParams) { // If a Drop Down element is about to be rendered, then we want our filter to be used // just before it is actually rendered so that we can provide our own custom rendering. // We are using TextUIElement because we are drawing the line in the specific textbox within the comboeditor return drawParams.Element is Infragistics.Win.TextUIElement ? DrawPhase.BeforeDrawElement : DrawPhase.None; } #endregion GetPhasesToFilter #region DrawElement /// </summary> bool IUIElementDrawFilter.DrawElement(DrawPhase drawPhase, ref UIElementDrawParams drawParams) { //no separator mentioned hence return from here if (string.IsNullOrEmpty(this.drawlineafter)) return false; TextUIElement textval = (TextUIElement)drawParams.Element; //This check is done to prevent rendering of the line in the editorbox, the line should rendered // only on the dropdown box //assuming that there will not be any valid empty string where one needs to draw a line if (string.IsNullOrEmpty(textval.Text)) return false; if ((textval == null) || (textval.Parent == null)) return false; if (textval.Parent.Control.Name.ToString() != String.Empty) return false; // Get the Combo element's bounding rectangle Rectangle rect = drawParams.Element.Rect; Point pt1 = Point.Empty; Point pt2 = Point.Empty; pt1.Y = rect.Top + (rect.Height); pt1.X = rect.Left + (rect.Width) - 1; pt2.X = rect.Right - (rect.Width) + 1; pt2.Y = pt1.Y; if (textval.Text.ToString() == drawlineafter.ToString()) { // Owner Draw the line with the specified custom color using (Pen pen = new Pen(drawParams.TextBrush)) { Point pt = Point.Empty; pt.X = rect.X; pt.Y = rect.Y; pen.DashStyle = this.dashstyle; drawParams.Graphics.DrawLine(pen, pt1, pt2); drawParams.Graphics.DrawString(textval.Text.ToString(), drawParams.Font, drawParams.TextBrush, pt); } } else return false; // To return FALSE from this method indicates that the element should draw itself as normal. // To return TRUE from this method indicates that the element should not draw itself. // Return true to prevent further drawing by the element return true; } #endregion DrawElement #endregion IUIElementDrawFilter Members }; #endregion UltraCmbEdLnSepDrawFilter Class

The following code needs to be included in your main form hosting the comboeditor

this.ultraComboEditor1.DrawFilter = new UltraCmbEdLnSepDrawFilter(DashStyle.Solid, "ValueListItem5");//DashStyle could be different types, "ValueListItem5" should be replaced with the text after which the line is required.