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Accessing View State of one page on other ASP.Net Page


There was one question always occurs, can we access viewstate one page to other page? And answer is Yes, 

“Is it possible to access the ViewState variable of one page on another page?”

We can access the viewstate variables across pages. This is only possible if Cross Page Posting or Server.transfer is used to redirect the user to other page. If Response.redirect is used, then ViewState cannot be accessed across pages.

Here I have two pages Default.aspx and Default2.aspx.I have one Textbox and button control in first page (Default.aspx), after submit button it will be redirect to other page (Default2.aspx) were u get first page viewstate

Default.aspx


 <html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Untitled Page</title>
</head>
<body>
    <form id="form2" runat="server">
    <div>
        <asp:TextBox ID="TextBox1" runat="server"> </asp:TextBox>
        <br />
        <asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Submit" Style="height: 26px" />
    </div>
    </form>
</body>
</html>

Code Behind
protected void Page_Load(object sender, EventArgs e)
{
}
public StateBag ReturnViewState()
{
    return ViewState;
}
protected void Button1_Click(object sender, EventArgs e)
{
    ViewState["test"] = TextBox1.Text.ToString();
    Server.Transfer("Default2.aspx");
}

Defualt2.aspx
protected void Page_Load(object sender, EventArgs e)
{
    StateBag objStateBag = null;
    if (PreviousPage != null)
    {
        Object objPreviousPage = (Object)PreviousPage;
        System.Reflection.MethodInfo objMethod = objPreviousPage.GetType().GetMethod("ReturnViewState");
        objStateBag = (StateBag)objMethod.Invoke(objPreviousPage, null);
    }
    Response.Write("First Page Textbox value : " + objStateBag["test"].ToString());
}
Suppose we entered “Viewstate testing” in first page text box, 

Output

First Page Textbox value : Viewstate testing
Download code here

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    Thanks for this insightful post on accessing ViewState across pages! Your explanations are clear and the examples are very helpful. It’s great to see practical solutions for common challenges in ASP.NET. Looking forward to more tips and tricks.
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    This explanation effectively clarifies how ViewState can be shared between pages in ASP.NET using techniques like Cross Page Posting or Server.Transfer. It's a useful approach for maintaining state across pages, which is often necessary in web applications. The provided code snippets demonstrate a clear implementation of this concept with a straightforward example, showing how data can be passed from one page to another seamlessly. This can help developers manage user input more effectively without needing to resort to other state management techniques. Overall, a great resource for understanding ViewState in ASP.NET! Data science courses in Gurgaon

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    This is a great explanation of how to access ViewState across pages using Server.Transfer and Cross Page Posting! Many developers are often unsure if it’s possible to share ViewState data between pages, and this article clears up the confusion. Data science courses in Visakhapatnam

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  20. sakshi.gupta.universityNovember 24, 2024 at 4:06 AM

    Managing ViewState across different pages in ASP.NET requires alternative methods, such as using session variables or query strings. For sensitive data, storing the data in a session is a safer and more reliable approach.

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    Great explanation! You made accessing View State across pages in ASP.NET so clear and easy to follow. Thanks for sharing.
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    "Great explanation! I appreciate how you’ve broken down the process of accessing view state across pages in ASP.NET. The example is clear and provides a practical approach to handling scenarios where state management is crucial. It’s helpful for understanding the limitations and potential solutions in such use cases. Thanks for sharing this detailed guide!"
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