how to retrieve out parameter of a stored procedure in aspx page

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hello sir.
i have a string as out parameter in my storedprocedure. i want display this string in my aspx page. every thing perfect. when ever i execute the storedprocedure. it is executing perfectly.
but when ever i debug my solution. it is not coming to dataset.

see my sp, code below
any body plz help me.

ALTER proc [dbo].[sp_insert]
(
@eid int,
@ename nvarchar(50),
@image nvarchar(50),
@print nvarchar(max) output
)
as begin
set @print='Records are inserted successfully'
insert into tab (eid , ename , image )
values
(
@eid,
@ename,
@image
)
end

aspx.cs
-----------

protected void Button1_Click(object sender, EventArgs e)
    {
        DataSet ds = new DataSet();
                    
        SqlParameter[] oparam = new SqlParameter[4];
        oparam[0] = new SqlParameter("@eid", Txteid.Text);
        oparam[1] = new SqlParameter("@ename", Txtename.Text);
        
        
        FU.SaveAs("E:\\BackUpWebsites\\sri\\images\\" + FU.FileName);
        Server.MapPath("images\\" + FU.FileName);    
       
        oparam[2] = new SqlParameter("@image", "E:\\BackUpWebsites\\sri\\images\\" + FU.FileName );
        oparam[3] = new SqlParameter("@print", SqlDbType.NVarChar, 50);
        
        ds = BusinessLogic.InsertDetails(oparam );
      
        oparam[3].Direction = ParameterDirection.Output;
       
        LblResult.Visible = true;
        LblResult.Text = Convert.ToString ( oparam [3].Value );
    }

Posted 30-Dec-10 7:56am

sathish.jampala

Updated 30-Dec-10 8:57am

Not Active

v2

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[no name] 30-Dec-10 14:58pm

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Not Active · Answer 1 · 2010-12-30T09:03:00

Solution 1

Why do you need to return a string? The proper way would be to use a return code and interrupt it in the calling code.

Also a better design would be to pass the values from your form to the business logic method and create the Sqlparamter there. This how nTier/nLayer designs work.

Posted 30-Dec-10 9:03am

Not Active

Updated 30-Dec-10 9:04am

v2

Comments

sathish.jampala 30-Dec-10 22:54pm

hello sir. thanks for ur reply.

Shahriar Iqbal Chowdhury/Galib · Answer 2 · 2010-12-30T09:06:00

Hi,

Did you provide the entire code snippet? like what does this function BusinessLogic.InsertDetails do? clarify everything really helps out to pint point the problem.According to your provided code I can see you are setting parameter direction after executing the DB operation and this might cause the issue that you are facing.You can try this instead,

protected void Button1_Click(object sender, EventArgs e)
{
       DataSet ds = new DataSet();
                
       SqlParameter[] oparam = new SqlParameter[4];
       oparam[0] = new SqlParameter("@eid", Txteid.Text);
       oparam[1] = new SqlParameter("@ename", Txtename.Text);
       
       
       FU.SaveAs("E:\\BackUpWebsites\\sri\\images\\" + FU.FileName);
       Server.MapPath("images\\" + FU.FileName);    
       
       oparam[2] = new SqlParameter("@image", "E:\\BackUpWebsites\sri\images\" + FU.FileName );
       oparam[3] = new SqlParameter("@print", SqlDbType.NVarChar, 50);
  
       oparam[3].Direction = ParameterDirection.Output;
       ds = BusinessLogic.InsertDetails(oparam );

       LblResult.Visible = true;
       LblResult.Text = Convert.ToString ( oparam [3].Value );
}

Hope this will help