System.Windows.Controls.Primitives 程序集: PresentationFramework.dll 获取或设置一个值,该值指示是否可以一次选择MultiSelector中的多个项。 C# protectedboolCanSelectMultipleItems {get;set; } 属性值 Boolean 如果可以一次选择MultiSelector中的多个项,则为true;否则为false。
如果CanSelectMultipleItems 為false ,則您無法將多個專案新增至 SelectedItems 集合。 嘗試這樣做會導致例外狀況。 適用於 產品版本 .NET Framework 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 Windows Desktop 3.0, 3.1, 5, 6, ...
The ability to select multiple items for any function makes it easy for users to work on Windows 10. Are you familiar with all the ways in which you can select multiple files or folders on your device? Here are all the methods of selecting multiple items on your Windows 10 device, that ...
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To select a group of items that are next to each other in the display, press the Shift key, click the first item in the group, then click the last item in the group. To select multiple items that are not next to each other in the display, press the Ctrl key, then click each ...
I have a Word file with multiple text boxes and pictures on the same page. Unfortunately, the items are not centered on the page. I want to select everything on the page so that I can move them all a...Show More microsoft 365 Reply ...
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若要确定允许同时进行多个选择的控件中的 HtmlSelect 选定项,请循环访问 Items 集合并测试 ListItem.Selected 每个项的 属性。 备注 multiple仅当此属性设置为 true时,HtmlSelect属性才会在 控件中呈现。 适用于 产品版本 .NET Framework 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6....
[out] Pointer to a count of the number of selected items. pfSingleHierarchy Int32 [out] Pointer to a flag that is set to true if the selected items are within a single hierarchy and false if the selected items are across multiple hierarchies. ...
[out] Pointer to a count of the number of selected items. pfSingleHierarchy Int32 [out] Pointer to a flag that is set to true if the selected items are within a single hierarchy and false if the selected items are across multiple hierarchies. Returns Int32 If the method succeeds, it...