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 Using Datasets

Author  Topic 

AdamWest
Constraint Violating Yak Guru

360 Posts

Posted - 2011-08-24 : 10:19:20
Can someone explain, where the dataset is stored? I don't mean the data. I understand that the data is stored in their regular tables.

What I am trying to understand is this. there is some code that makes the dataset work as it does? If so, where does this get stored?

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2011-08-24 : 11:48:06
the definition for dataset gets stored in rdl (report definition language). you can right click on a report and select view code for getting it.

------------------------------------------------------------------------------------------------------
SQL Server MVP
http://visakhm.blogspot.com/

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AdamWest
Constraint Violating Yak Guru

360 Posts

Posted - 2011-08-24 : 12:54:28
Interesting, i am referring to this sort of dataset:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data.SqlClient;
using System.Data;

public partial class _Default : System.Web.UI.Page
{

SqlCommand cmd;
SqlDataAdapter da;
DataSetPK ds;
protected void Page_Load(object sender, EventArgs e)
{
SqlConnection cn = new SqlConnection("server=ORDERS;uid=OG;pwd=OG;database=PRO2");
cmd = new SqlCommand("select * from [OG].[TAP_C_ROOM_TABLES]", cn);
da = new SqlDataAdapter(cmd);
// dsProducts tds = new dsProducts();
ds = new DataSetPK();

da.Fill(ds, ds.TAP_C_ROOM_TABLES.TableName);

dgok.DataSource = ds;
dgok.DataBind();

}
protected void btnInsert_Click(object sender, EventArgs e)
{


DataRow row = null;
// DataSetPK ds = new DataSetPK();
row = ds.TAP_C_ROOM_TABLES.NewTAP_C_ROOM_TABLESRow();
row[0] = "T1";
row[1] = "a";

row[2] = "test";
ds.TAP_C_ROOM_TABLES.BeginInit();
ds.TAP_C_ROOM_TABLES.Rows.Add(row);
ds.TAP_C_ROOM_TABLES.EndInit();
ds.TAP_C_ROOM_TABLES.AcceptChanges();
ds.AcceptChanges();

da.Update(ds.TAP_C_ROOM_TABLES);

da.Update(ds, ds.TAP_C_ROOM_TABLES.TableName);


dgok.DataSource = ds;
dgok.DataBind();

}
protected void btnUpdate_Click(object sender, EventArgs e)
{
ds.TAP_C_ROOM_TABLES.Rows[0][2]="Care";
ds.TAP_C_ROOM_TABLES.AcceptChanges();
ds.AcceptChanges();
da.Update(ds, ds.TAP_C_ROOM_TABLES.TableName);

dgok.DataSource = ds;
dgok.DataBind();

}
}
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visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2011-08-24 : 13:29:27
oh you were refering to .net dataset. it should be created in memory i guess

------------------------------------------------------------------------------------------------------
SQL Server MVP
http://visakhm.blogspot.com/

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