grid view code

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I am using this code for displaying data in Gridview:

C#

SqlConnection con=new SqlConnection(ConfigurationManager.AppSettings["connectionstring"].ToString());
SqlCommand cmd = new SqlCommand("select * from product_order", con);
cmd.Connection = con;
con.Open();
SqlDataReader reader = cmd.ExecuteReader();
GridView1.DataSource = reader;
GridView1.DataBind();
con.Close();

But, I am unable to access data in grid.

Posted 13-Sep-10 23:20pm

call to .net

Updated 13-Sep-10 23:22pm

Sandeep Mewara

v2

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Sandeep Mewara 14-Sep-10 5:23am

Edited for grammar and code formatting.

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Sandeep Mewara · Answer 1 · 2010-09-13T23:27:00

You need to read about ADO.NET. How DataReader works.
Instead of DataReader, you should use DataAdapter to fill dataset and then datagrid.

Have a look here:
Populating a DataSet from a DataAdapter (ADO.NET)[^]

A good read on ADO.NET with samples here:
ADO.NET Overview[^]
Accessing Data with ADO.NET[^]

Baji Jabbar · Answer 2 · 2010-09-14T01:22:00

Using DataTable (or DataSet if multiple tables are needed to select) and bind the datatable to the Grid

SqlConnection con = new SqlConnection(ConfigurationManager.AppSettings["connectionstring"].ToString());
     SqlCommand cmd = new SqlCommand("select * from product_order", con);
     SqlDataAdapter sda = new SqlDataAdapter(cmd);
     DataTable dt = new DataTable();
     cmd.Connection = con;
     con.Open();

     sda.Fill(dt, "product_order");
     GridView1.DataSource = dt;
     GridView1.DataBind();
     con.Close();

Hope this will help you :)

sureshbalachander · Answer 3 · 2010-09-14T01:59:00

Hi
In your code, try adding reader.read() after SqlDataReader reader = cmd.ExecuteReader() line.

SqlConnection con=new SqlConnection(ConfigurationManager.AppSettings["connectionstring"].ToString());
SqlCommand cmd = new SqlCommand("select * from product_order", con);
cmd.Connection = con;
con.Open();
SqlDataReader reader = cmd.ExecuteReader();

reader.read();

GridView1.DataSource = reader;
GridView1.DataBind();
con.Close();

This might help you.

Regards,
Suresh

grid view code

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