关于ViewState的问题 [英] Question on ViewState

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问题描述

据我了解,如果在页面级别启用了viewstate,则页面将能够恢复控件的回发值.然后将其存储在HTML隐藏字段名称__VIEWSTATE

现在我有以下代码

As per my understanding, if viewstate is enabled at the page level, then page will be able to restore control''s postback value. Then it is been stored in HTML hidden field name __VIEWSTATE

Now I have following code

<%@ Page Language="C#" AutoEventWireup="true"  CodeFile="Default.aspx.cs" Inherits="_Default" EnableViewState="true" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:TextBox ID="TextBox1" runat="server" EnableViewState="true"></asp:TextBox>
        <asp:TextBox ID="TextBox2" runat="server" EnableViewState="true"></asp:TextBox>&nbsp;
        <asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Button" />
        <asp:Button ID="Button2" runat="server" Text="Button" />
    </div>
    </form>
</body>
</html>




现在,在回发__VIEWSTATE值之前和之后的enen保持不变,如下所示




Now enen after and before postback __VIEWSTATE value remain constant as below

<input type="hidden" name="__VIEWSTATE" id="__VIEWSTATE" value="/wEPDwUKMTg4ODA4NDE0NmRkj7tbr766d8QnsN+zf6TsvmqFiao=" />



我认为如果在文本框中输入内容,则回发后应更改__VIEWSTATE值.

请让我知道您对相同的想法.



I think __VIEWSTATE value should be changed after postback if I enter something to textbox.

Please let me know your thought regarding the same.

推荐答案

是的,

你说得对!
ViewState可以在页面级别和单个asp.net服务器控件上进行控制...

有关更多详细信息,请阅读 [
Yes,

You are right!
ViewState can be controlled on page level and at individual asp.net server control...

For more details read this[^].


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