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get input:hidden value from code behind RRS feed

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    User-1471881183 posted

    hello all,

    im using a thrid party tool in A.aspx, while calling their functions im passing B.aspx as the response receiveing page.

    now, everything are ok and response received in B.aspx, there is a input:hidden control with some data, i have to read its value from code behind so, i have written the code like below but, receiving only null as output.

    protected void Page_Load(object sender, EventArgs e)
        {
            var responseJson = Request.Form["3FC23F6B"];

        }

    below is the output generated in B.aspx

    <!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head><title>

</title></head>
<body>
    <form method="post" action="./b" id="form1">
<div class="aspNetHidden">
<input type="hidden" name="__VIEWSTATE" id="__VIEWSTATE" value="xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
    xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" />
</div>

<div class="aspNetHidden">

	<input type="hidden" name="__VIEWSTATEGENERATOR" id="__VIEWSTATEGENERATOR" value="3FC23F6B" />
</div>
        <div>
        </div>
    </form>
</body>
</html>

    May i know how to get this data in code behind?

    Wednesday, August 5, 2020 11:55 AM

Answers

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    User-821857111 posted

    You need to reference the form control by its name attribute value:

    var x = Request.Form["__VIEWSTATEGENERATOR"];
    // x is 3FC23F6B

    • Marked as answer by Anonymous Thursday, October 7, 2021 12:00 AM
    Wednesday, August 5, 2020 4:41 PM
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    User-939850651 posted

    Hi winseealn,

    As other members said, I got the correct data.

    A.html

<body>
    <form method="post" action="B.aspx" id="form1">
        <input name="input1" type="hidden" value="xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" />
        <input name="input2" type="hidden" value="3FC23F6B" />
        <input type="submit" value="Submit" name="submit" />
    </form>
</body>
    B.aspx.cs

protected void Page_Load(object sender, EventArgs e)
        {
            var x = Request.Form["input1"].ToString();
            var y = Request.Form["input2"].ToString();
            Response.Write(x + "---" + y);
        }

    Result:

    Best regards,

    Xudong Peng

    • Marked as answer by Anonymous Thursday, October 7, 2021 12:00 AM
    Thursday, August 6, 2020 4:09 AM

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    User-821857111 posted

    You need to reference the form control by its name attribute value:

    var x = Request.Form["__VIEWSTATEGENERATOR"];
    // x is 3FC23F6B

    • Marked as answer by Anonymous Thursday, October 7, 2021 12:00 AM
    Wednesday, August 5, 2020 4:41 PM
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    User-1471881183 posted
    Mikes thanks for your response.

    Yes I tried with viewstategenerator also but results null.
    Wednesday, August 5, 2020 7:02 PM
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    User-939850651 posted

    Hi winseealn,

    As other members said, I got the correct data.

    A.html

<body>
    <form method="post" action="B.aspx" id="form1">
        <input name="input1" type="hidden" value="xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" />
        <input name="input2" type="hidden" value="3FC23F6B" />
        <input type="submit" value="Submit" name="submit" />
    </form>
</body>
    B.aspx.cs

protected void Page_Load(object sender, EventArgs e)
        {
            var x = Request.Form["input1"].ToString();
            var y = Request.Form["input2"].ToString();
            Response.Write(x + "---" + y);
        }

    Result:

    Best regards,

    Xudong Peng

    • Marked as answer by Anonymous Thursday, October 7, 2021 12:00 AM
    Thursday, August 6, 2020 4:09 AM