文件上传控件始终显示为假? [英] File Upload control showing always false?

问题描述

海每个人

我的aspx页面中有UpdatePanel.
在那个UpdatePanel中，我有另一个updatepanel，两种更新模式都是有条件的.
我在子更新面板中有一个模型弹出扩展器.
在模型弹出控件中，我有一个文件上传控件，并且有一个按钮.

在按钮中，单击事件文件上载控件的HasFile属性始终显示为false.

我尝试使用触发器，但无法正常工作.

如果我放置触发按钮，单击事件将不会触发.

Hai Every one

I have UpdatePanel in my aspx page.
In that UpdatePanel i have another updatepanel both update mode is conditional.
I have a model pop up extender in child update panel.
In the model popup control i have a file upload control and one button is there.

In the button click event file upload control HasFile property always showing false.

I tried with triggers but it is not working.

If i put a trigger button click event is not firing.

推荐答案

我在这里回答了类似的问题-

I answered a similar question here - fileupload within updatepanel not working using asynchronizepostback trigger[^].

Let me know if that helps!

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