How to display data from more then one table using dropdown

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C#

SqlDataAdapter da = new SqlDataAdapter("select p.rid,pf.uname,e.education from Personal p join Profile pf on p.rid=pf.rid join  education e on p.edu_id= e.edu_id where  e.education='"+edu.SelectedValue+"'", cn);
    
        //SqlDataAdapter da = new SqlDataAdapter("select image from uplodimage where rid=" + Session["rid"], cn);
        DataSet ds = new DataSet();
        da.Fill(ds);
       GridView1.DataSource = ds.Tables[0];
        GridView1.DataBind();

What I have tried:

SqlDataAdapter da = new SqlDataAdapter("select p.rid,pf.uname,e.education from Personal p join Profile pf on p.rid=pf.rid join education e on p.edu_id= e.edu_id where e.education='"+edu.SelectedValue+"'", cn);

//SqlDataAdapter da = new SqlDataAdapter("select image from uplodimage where rid=" + Session["rid"], cn);
DataSet ds = new DataSet();
da.Fill(ds);
GridView1.DataSource = ds.Tables[0];
GridView1.DataBind();

Posted 4-Oct-16 1:15am

Member 12770124

Updated 4-Oct-16 1:46am

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OriginalGriff 4-Oct-16 7:17am

And?
What happens that you didn't expect, or doesn't happen that you did?
This is not a good question - we cannot work out from that little what you are trying to do.
Remember that we can't see your screen, access your HDD, or read your mind.
Use the "Improve question" widget to edit your question and provide better information.

[no name] 4-Oct-16 7:23am

Never mind not being a good question, it's not a question at all. This is just an incomplete code dump.

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senkmrm · Answer 1 · 2016-10-04T01:46:00

Hi,
My understanding of your question is, you have to bind the grid based on the selected value in the dropdownlist.
If it is so, then "edu.SelectedValue" is not correct.
if the dropdownlist id is "dropdownlist1" then the where condition will be "dropdownlist1.SelectedItem.Value" or dropdownlist1.SelectedItem.Text

C#

SqlDataAdapter da = new SqlDataAdapter("select p.rid,pf.uname,e.education from Personal p join Profile pf on p.rid=pf.rid join  education e on p.edu_id= e.edu_id where  e.education='"+dropdownlist1.SelectedItem.Value+"'", cn);