9
Answers

Asp.Net

Murugavel S

Murugavel S

9y
449
1
Hi Friends
 
               How to display Alert msg in Asp.net Web Application.. ??
               i have to delete some Item.
               after pressing delete button, it should show alert msg..
               if i press yes, it should delete
               if it is no, then do nothing..
               i have delete functions..
               i want Alert msg in asp.net as in msgbox in C# ..
               pls help me..
               Thnks in Advance 
 
Answers (9)
0
Niradhip Chakraborty

Niradhip Chakraborty

NA 6.5k 526.8k 15y

1) DataReader does not implement any specific interface so that it can
be bindable
2) DataReader is for reading data.So if some how u r able to bind
that,it won't allow u to edit that.So it's of no use.
3) DataReader is forward only,that means u can get a record at a time
but can't traverse back to the prev record.

This code shows how to bind gridview with data reader
Use this code on page load

 
void Page_Load(Object sender, EventArgs e)
{
  String Q;
  Sql command cmd;
  Sql DataReader dr;


  SqlConnection conn = new SqlConnection();

  conn.ConnectionString = ConfigurationManager.ConnectionStrings        ["cn"].ConnectionString.ToString();

conn.Open();
         
Q = "select * from tablename";
              
cmd= New Sqlcommand(Q, conn); 
         
dr = cmd.ExecuteReader();         
         
Gridview1.DataSource = dr;
           
Gridview1.DataBind();
}

 
0
Kirtan Patel

Kirtan Patel

NA 35k 2.8m 15y
When you bind Data reader to gridView


it iterates through  records one by one and All records Rendered One bye one in HTML Table row

so as a result you see data in Grid View .