Question

I am currently working on my first website. The problem I have encountered is the following: I have created a paged titled “CustomerList” that obviously list customers from an sql server DB. I have made the records clickable without using the select button that is included in the GridView. When I click a record, it takes me to my desired page. However, I can’t seem to find a way to write an sql query from that click event to my desired page. The following is my code for the click event:

protected void GridView1_SelectedIndexChanged(object sender, EventArgs e)
{
    GridViewRow row = GridView1.SelectedRow;

    if (row.RowIndex == 0)
    {
        Response.Redirect("UsageHistoryPage.aspx? EntityID=" 
            + row.Cells[0].Text);
    }            
}

As you can see, when I click an index, I go to the “UsageHistoryPage”. I’ve also added row.cells.[0] to take that data and write it to the UsageHistoryPage, which in my case, would be the customers name at the top of the page. Can someone please help me with this? Does anyone have a good tutorial link? thanks.

Answer 1

You can try with this code – Add this code on your UsageHistoryPage

var input =  Response.QueryString["EntityId"];
var connectionString = "...";

var queryString = "SELECT Name FROM TABLE WHERE COLUMN=@EntityId";
using (SqlConnection connection = new SqlConnection(
               connectionString))
{
    connection.Open();    
    using(var command = new SqlCommand(queryString, connection))
    {
        Command.Parameters.AddWithValue("@EntityId",input) 
        SqlDataReader reader = command.ExecuteReader(CommandBehavior.CloseConnection);
        while (reader.Read())
        {
            Response.Write(String.Format("For Rick Your Name is here{0}", reader[0]));
        }
    }
}