当我有一个RequiredFieldValidator时，为什么页面是PostBack [英] why page is PostBack when I have a RequiredFieldValidator

问题描述

我有一个带有autoPostBack的TextBox设置为true，带有RequiredFieldValidator

I have a TextBox with autoPostBack Set to true with a RequiredFieldValidator

<asp:TextBox ID="txtLaborID" runat="server" AutoPostBack="True"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ControlToValidate="txtLaborID" ErrorMessage="*" ForeColor="Red"></asp:RequiredFieldValidator>

在ocdeBehind的TextChanged上我有代码。



问题是我有文字的时候在并清空此文本并按Tab键页面正在回发这不应该发生，因为我有RequiredFieldValidator。为何回帖？

And on TextChanged in ocdeBehind I have the code.

The problem is when I have text it in and empty this text and press tab the page is posting back this should not happen since I have RequiredFieldValidator. Why it is posting back?

推荐答案

请参阅以下链接，了解类似问题



http://forums.asp.net/t/1919818.aspx?TextBox+CausesValidation [<一个href =http://forums.asp.net/t/1919818.aspx?TextBox+CausesValidationtarget =_ blanktitle =New Window> ^ ]



http://forums.asp.net/t/1119411.aspx [< a href =http://forums.asp.net/t/1119411.aspxtarget =_ blanktitle =新窗口> ^ ]



希望这有帮助......

Refer the links below which deals with similar issue

http://forums.asp.net/t/1919818.aspx?TextBox+CausesValidation[^]

http://forums.asp.net/t/1119411.aspx[^]

Hope this helps...

引用：

为什么页面是PostBack我有一个RequiredFieldValidator

why page is PostBack when I have a RequiredFieldValidator

由于文本框的Autopostback属性，页面得到回发。

参考这里：

TextBox.AutoPostBack Property [ ^ ]

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