如何在Gridview中获取下拉列表的上一个选定值. [英] how to get last selected value of a dropdownlist inside Gridview.

问题描述

你好，

我在gridview内部有一个下拉列表，在此下拉列表的selectedindexchange事件上，我将其称为函数，我想获取具有自动回传功能的dropdownlist的最后一个选定值.

谢谢

Hello,

i am having a dropdown inside the gridview , on selectedindexchange event of this dropdown i called a Function, i want to get last selected value of dropdownlist which has autopostback.

Thanks

推荐答案

使用隐藏字段.在设置下拉值的地方设置其值.
例如

Use hidden field. Set its value where dropdown value is set.
e.g

<asp:dropdownlist id="ddl_GetLists" >
                    SelectedValue='<%#Bind("listID") %>'
                    runat="server"
                    >
</asp:dropdownlist>

如果要更改隐藏字段值，可以根据需要在DropDownList selectedindexChanged事件中对其进行更改.

If you want to change hidden field value you can change it in DropDownList selectedindexChanged event as per your requirement.

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