当文件上传放在更新面板内时，文件上传在gridview内部不起作用，显示对象未设置为对象的实例 [英] file upload is not working inside gridview when it is placed inside update panel showing object not set to an instance of the object

问题描述

嗨朋友们



i里面有一个更新面板，里面有一个gridview，并且模板字段中有一个fileupload控件。



我更新其显示对象引用未设置为对象的实例



请帮助我

hi friends

i have placed a update panel inside that there is a gridview and in that there is a fileupload control in template field.

while i update its showing "object reference not set to an instance of an object"

please help me

推荐答案

不要在更新面板内使用FileUpload控件。

Do Not Use FileUpload Control Inside Update Panel.

FileUpload控件需要完整的回发才能使其工作。为控件添加PostBackTrigger。这应该适合你。



问候，

Jobin

FileUpload control needs a full postback to get it worked. Add a PostBackTrigger for the control . This should work for you.

Regards,
Jobin

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