use of request.params

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Request.Params("ProductID") = DropDownList1.SelectedValue

gives error as "Collection is read only"
plz. help me.
Thanks in advance

Posted 16-Jun-11 18:04pm

jnan shankar tewary

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3 solutions

Solution 2

Request.Params.Add("ID", itsvalue);

u can do this way

Posted 16-Jun-11 18:35pm

amit28august

Comments

RakeshMeena 17-Jun-11 0:41am

This won't work as the collection is read-only. This might throw "NotSupported" exception.

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walterhevedeich · Accepted Answer · 2011-06-16T18:17:00

Solution 1

The error is self explanatory. When its said to be read only, it means that you cannot assign values to it. There are tons of explanation on Google about this one if you need further explanation.

Posted 16-Jun-11 18:17pm

walterhevedeich

Comments

RakeshMeena 17-Jun-11 0:38am

Correct! My 5

walterhevedeich 17-Jun-11 1:06am

Thanks Rakesh.

RaviRanjanKr 17-Jun-11 1:02am

Nice Answer, My 5+

walterhevedeich 17-Jun-11 1:06am

Thanks Ravi.

Sergey Alexandrovich Kryukov 17-Jun-11 1:19am

Sure, a 5.
--SA

walterhevedeich 17-Jun-11 2:28am

Thanks SA.

RakeshMeena · Accepted Answer · 2011-06-16T18:37:00

Solution 3

Walter is right. Request.Params is a read-only property and is a combined collection of QueryString, form fields, cookies and server variables as mentioned in the MSDN documentation.
Hence if you want to add something to the params collection add it to appropriate collection (Query string, cookies etc.).

Posted 16-Jun-11 18:37pm

RakeshMeena

Updated 16-Jun-11 18:39pm

v2

Comments

RaviRanjanKr 17-Jun-11 1:02am

Nice Answer, My 5+

Sergey Alexandrovich Kryukov 17-Jun-11 1:20am

Useful extra explanation, my 5.
--SA