System.Data.EvaluateException: Cannot find column [B100].

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i pass category and imgId in the query string like this..

http://localhost:56393/FunEvilModi/ViewItem.aspx?Cat=Birthday&ImgId=B100[^]

in page lode

DataSet DSImages = new DataSet();
DSImages.ReadXml(Server.MapPath(@"~\\xml\\"+Request.QueryString[0].ToString()+".xml"));

\\This line Gives Error
DataRow DRow  = DSImages.Tables[0].Select("imgId=" + Request.QueryString[1].ToString())[0];

\\This line gives error
ImgItem.ImageUrl = "~/greetings/"+DRow[1].ToString();

In XML file i store the ImgId,IMgURL
i want display the image based on imgId

it Gives error like this

"Exception Details: System.Data.EvaluateException: Cannot find column [B100]."

Posted 20-Apr-10 7:39am

Rajesh Kumar Chekuri

Updated 20-Apr-10 7:44am

Tarakeshwar Reddy

v2

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Tarakeshwar Reddy · Accepted Answer · 2010-04-20T08:12:00

Rajesh Kumar Chekuri wrote:
DataRow DRow = DSImages.Tables[0].Select("imgId=" + Request.QueryString[1].ToString())[0];

You need to pass the value within single quotes

DSImages.Tables[0].Select(string.Format("imgId='{0}'", Request.QueryString[1].ToString())[0]);

Rajesh Kumar Chekuri wrote:
Server.MapPath(@"~\\xml\\"+Request.QueryString[0].ToString()+".xml"));

You need not specify \\ as you have given @. Also it would make it easier to read if you used string.Format(@"~\xml\{0}.xml", Request.QueryString[0].ToString());.