如何从SQL Server数据库表列中获取Male或Female并在转发器控件中显示记录？

Question

ASP.NET, C# and SQL Server database.

I have a table Students with a gender column and photos saved in another table. On the page, I have a dropdown control of which I've bound to the gender value, and a button.

What I want to do is: if the user selects male or female from dropdown control and click the button, all selected photos and records should be displayed in a repeater control..

I've tried using a stored procedure with the query:

select A.*, B.*  
from tblStudents A 
cross apply
    (select top 1 * 
     from tbl studentImages B 
     where A.Gender = @Gender and B.ImageID = A.ImageID

But its showing all the records instead of showing only the selected records.

Can anybody help ?

Code behind:

protected void btnsearch_click(onject sender, EventArgs)
{  
      Int64 Gender = Convert.Toint64(Request.Querystring[Gender]);

       String S = ConfigurationManager.onnectionStrings["DBST"]ConnectionStrings;

       using(SqlCommand con= new SqlCommand(CS))
       {
             SqlCommand cmd = new SqlCommand("SP_Data",con)
             cmd.commandType = commandType.StoredProcedure;

             con.Open();

             SqlDataAdapter ada = new SqlDataAdapter(cmd)

             DataTable dt = new DataTable();
             ada.Fill(dt);

             if(dt.Rows.Count !=0)
             {
                 rpterGender.DataSource = dt;
                 rpterGender.DataBind();
             }
        }
    }
}

Answer 1

You need to use join in Query.

select A.*, B.*  
from tblStudents A 
join tblstudentImages B on B.ImageID = A.ImageID
where A.Gender = @Gender