バージョン

AllowResizeDropDown プロパティ

ギャラリー ドロップダウンのリサイズを可能にするかどうかを示す値を取得または設定します。
シンタックス
'宣言
 
Public Property AllowResizeDropDown As Boolean
public bool AllowResizeDropDown {get; set;}
解説

MinDropDownColumnsMaxDropDownColumns が同じ値を持つ場合、ドロップダウンをリサイズできるのは垂直方向のみになります。

使用例
Imports Infragistics.Win.UltraWinToolbars

Private Sub button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles button9.Click
	' Get the gallery from the toolbars manager which will be customized
	Dim gallery As PopupGalleryTool = Me.UltraToolbarsManager1.Tools("PopupGalleryTool1")

	' Prevent the user from resizing the gallery drop down by hiding the grab handle
	gallery.AllowResizeDropDown = False

	' Hide the filter bar in the gallery drop down.  If this is set to false, the selected filter 
	' can only be programmatically changed by setting SelectedGroupFilter or SelectedGroupFilterKey.
	gallery.ShowFilterBar = False

	' Prevent the gallery preview from showing in the ribbon
	gallery.ShowPreviewInRibbon = False

	' Use images from the UltraToolbarsManager.ImageListSmall in the gallery item
	gallery.UseLargeImagesInItems = False
End Sub
using System.Windows.Forms;
using Infragistics.Win.UltraWinToolbars;

private void button1_Click( object sender, EventArgs e )
{
	// Get the gallery from the toolbars manager which will be customized
	PopupGalleryTool gallery = (PopupGalleryTool)this.ultraToolbarsManager1.Tools[ "PopupGalleryTool1" ];

	// Prevent the user from resizing the gallery drop down by hiding the grab handle
	gallery.AllowResizeDropDown = false;

	// Hide the filter bar in the gallery drop down.  If this is set to false, the selected filter 
	// can only be programmatically changed by setting SelectedGroupFilter or SelectedGroupFilterKey.
	gallery.ShowFilterBar = false;

	// Prevent the gallery preview from showing in the ribbon
	gallery.ShowPreviewInRibbon = false;

	// Use images from the UltraToolbarsManager.ImageListSmall in the gallery item
	gallery.UseLargeImagesInItems = false;
}
参照