Query String Error(Query String Variable changed at the Receiving Time

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Hello Friends,
Please Help Me To Sort Out This Error.

I Use a QueryString in Forgot Password Page.And Encrpt QuerYString Variable. The value Of variable after Encrption Is: 4FLybyAVijalWsLm5fGz1bdy2qPEDh/u5bGW5lE6bkgayF9VsT+OVGDWop7s8vNk

Code Is:
message.Body = "To reset your password, please click on the URL below. http://ShopingCart/Admin/ResetPassword.aspx?resource=4FLybyAVijalWsLm5fGz1bdy2qPEDh/u5bGW5lE6bkgayF9VsT+OVGDWop7s8vNk[^]

Resetpassword.aspx:

if (Request.QueryString["resource"] != null )
{
String DecrptEmailId = Request.QueryString["resource"].ToString();

string EmailId = BusinessClassObject.Decrypt(DecrptEmailId);
Label1.Text=EmailId;
}

Now At The Time Of Receiving The Varaible Value is:
4FLybyAVijalWsLm5fGz1bdy2qPEDh/u5bGW5lE6bkgayF9VsT OVGDWop7s8vNk

Varaible Value Modified Automatically.
'+' Sign Modified By a space.

Due To This I Got A error At The Time of Decrption.

Posted 31-Aug-15 2:49am

Member 11804811

Updated 31-Aug-15 2:52am

v2

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ZurdoDev · Answer 1 · 2015-08-31T02:56:00

Solution 1

When you generate the url, use Server.UrlEncode on the encrypted value because you have a few special characters that need encoded.

C#

url += "?resource=" + Server.UrlEncode(someVar);

Request.QueryString automatically decodes it so you don't need to do any change there.

Posted 31-Aug-15 2:56am

ZurdoDev

Updated 31-Aug-15 2:57am

v2

Comments

aarif moh shaikh 31-Aug-15 8:59am

agree with you

Member 11804811 31-Aug-15 9:21am

Thankyou

ZurdoDev 31-Aug-15 9:59am

You're welcome.

Member 11804811 1-Sep-15 6:49am

After Using Server.UrlEncode it becomes
http://localhost:63012/Admin/ResetPassword.aspx?resource=ram%40gmail.com
It isd not fully encrypted rather it adds some special character

ZurdoDev 1-Sep-15 7:10am

It's encoded, not encrypted. Big difference. It changes special characters, such as the "@" into characters that are valid in the url.

Member 11804811 2-Sep-15 5:25am

Yes! I want to encrpt my Query String Variable not to Encode.
Please Reveiew my Question Again and Give me the Solution If You Know.