อยากใส่รูปปุ่มของตัวเอง ใน DevExpress ต้องทำยังไงครับ ช่วยผมที

		public SimpleButton AddToolbarButton(string name, string toolTip, string imageFileName, EventHandler clickEventHandler)
		{
			if (!_buttonLayoutControlItems.ContainsKey(name))
			{
				SimpleButton button = new SimpleButton();
				button.Name = name;
				button.ToolTip = toolTip;
				button.Image = ViewFrameworkUtility.GetImageFromGlobals(imageFileName, null);
				button.Size = new Size(30, 26);
				button.MaximumSize = new Size(30, 26);
				button.MinimumSize = new Size(30, 26);
				button.ImageLocation = ImageLocation.MiddleCenter;
				button.Click += clickEventHandler;

				string key = "lay" + name;
				LayoutControlItem lay = new LayoutControlItem();
				lay.Control = button;
				lay.CustomizationFormText = key;
				lay.SizeConstraintsType = DevExpress.XtraLayout.SizeConstraintsType.Custom;
				lay.MaxSize = new System.Drawing.Size(34, 30);
				lay.MinSize = new System.Drawing.Size(34, 30);
				lay.Name = key;
				lay.Size = new System.Drawing.Size(34, 30);
				lay.Text = key;
				lay.TextSize = new System.Drawing.Size(0, 0);
				lay.TextToControlDistance = 0;
				lay.TextVisible = false;

				grpToolbar.Add(lay);

				_buttonLayoutControlItems.Add(button.Name, lay);

				return button;
			}

			return null;
		}

gftUC.AddToolbarButton("btnViewSOE", "View Sales Orders Expenses", "dorllar_red.png", btnViewSOE_Click);