how to use a variable instead of column name in compute method of dataset

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Hi

DataSet dssa = (DataSet)Session["dt"];
       string sr = dssa.Tables[0].Columns[2].ColumnName;
       Response.Write(sr);
       object sumOfSalary = null;
       sumOfSalary = dssa.Tables[0].Compute("Sum(sr)" , " ");

the error was sumOfSalary = dssa.Tables[0].Compute("Sum(sr)" , " ");
can any one say me how to use the variable instead of column name.

Posted 7-Feb-11 20:29pm

gowdhami

Updated 7-Feb-11 21:31pm

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Sunasara Imdadhusen · Answer 1 · 2011-02-07T20:43:00

Solution 1

Please check following

C#

sumOfSalary = dssa.Tables[0].Compute("Sum(" + sr +")" , " ");

Posted 7-Feb-11 20:43pm

Sunasara Imdadhusen

Comments

gowdhami 8-Feb-11 2:51am

i used like the error Invalid usage of aggregate function Sum() and Type: String. is generated