Solved

Gridview Custom Paging with SQL Server 2000

Posted on 2009-04-06
6
907 Views
Last Modified: 2012-05-06
I need to know how to setup custom sorting / paging with gridviews for large datasets with .NET 2.0, C# and SQL Server 2000. My current method for general SQL SELECT queries is below and does not have anything I need for custom paging, but I'd like to adapt what I have to work.

I am new to n-tier (presentation / BLL / DAL) and am not using that in this example unless it'd be easier to do.


<asp:ObjectDataSource ID="ObjDataSource1" runat="server" TypeName="SomeClass" SelectMethod="rtnDataSet">

        <SelectParameters>

            <asp:Parameter DefaultValue="Select * from employees" Name="_sqlStr" />

        </SelectParameters>

    </asp:ObjectDataSource> 
 
 

    public DataSet rtnDataSet(string _sqlStr)

    {

        DataSet _rtnDS = new DataSet();

        dataRetrieval.fillDataSet(ref _rtnDS, ref _sqlStr);

	return _rtnDS;

    }
 
 

    public static void fillDataSet(ref DataSet _dataSet, ref string _sqlStr)

    {

            SqlConnection _sqlCon = connectToSomeDB();

            SqlCommand _sqlCmd = new SqlCommand();
 

            _sqlCmd.Connection = _sqlCon;

            _sqlCmd.CommandType = CommandType.Text;

            _sqlCmd.CommandTimeout = 30;

            _sqlCmd.CommandText = _sqlStr;
 

            SqlDataAdapter _sqlAdptr = new SqlDataAdapter(_sqlCmd);

            _sqlAdptr.Fill(_dataSet);
 

            _sqlAdptr.Dispose();

            _sqlCmd.Dispose();

            _sqlCon.Close();

    }

Open in new window

0
Comment
Question by:devo00
  • 3
  • 2
6 Comments
 
LVL 27

Expert Comment

by:nmarun
Comment Utility
This is a duplicate question from:
http://www.experts-exchange.com/Programming/Languages/C_Sharp/Q_24299766.html

Please close this ticket.
0
 

Author Comment

by:devo00
Comment Utility
No, this is not a duplicate ticket. One is SQL Server 2000 and one is 2005.
0
 
LVL 27

Expert Comment

by:nmarun
Comment Utility
Have you looked at using a SqlDataSource instead?
http://msdn.microsoft.com/en-us/library/dz12d98w.aspx
0
6 Surprising Benefits of Threat Intelligence

All sorts of threat intelligence is available on the web. Intelligence you can learn from, and use to anticipate and prepare for future attacks.

 
LVL 26

Expert Comment

by:Anurag Thakur
Comment Utility
here are a few recommendation for sql server 2000
http://www.sqlteam.com/forums/topic.asp?TOPIC_ID=33472&SearchTerms=paging
0
 

Author Comment

by:devo00
Comment Utility
nmarun: When I say custom sorting / paging, I'm speaking of large datasets being paged and sorted. With the SQLDataSource, every time you sort or page, the entire resultset is returned and a portion is displayed or re-ordered. For this you need the ObjectDataSource. This is definitely not a help to get the built-in .NET sorting and paging functions inherent to gridviews and SqlDataSources.
-I need to only  a specific 10-15 record 'section' of the resultset returned for paging.
I've been through all the online versions and mostlyfind things that don't apply using the method I have above, only a way to start from scratch.
I need a simple step by step to change what I have to get custom sorting / paging working. For anyone that has done this before, I would think this would not be too difficult.
0
 

Accepted Solution

by:
devo00 earned 0 total points
Comment Utility
This answered my question for Custom Paging and I have it working now (procedure at bottom):  http://www.4guysfromrolla.com/webtech/042606-1.shtml

---------------------------

Gridview and ObjectDataSource:

    <asp:ObjectDataSource ID="o1" runat="server" 

    TypeName="TestTier" 

    SelectMethod="BindUsers" 

    SelectCountMethod="GetOrderCount"

    StartRowIndexParameterName="startRowIndex" 

    MaximumRowsParameterName="maximumRows"

    EnablePaging="true" 

    ></asp:ObjectDataSource>
 

<asp:GridView runat="server" ID="gv3" DataSourceID="o1" AllowPaging="true" PageSize="15" AllowSorting="true"></asp:GridView>
 

---------------------------

Stored Procedures:

CREATE  PROCEDURE [dbo].[GetTestData] 

(

    @startRowIndex int,

    @maximumRows int

)

AS
 

DECLARE @first_id int, @startRow int

	

SET ROWCOUNT @startRowIndex

SELECT @first_id = OrderID FROM [Order Details] ORDER BY OrderId
 

SET ROWCOUNT @maximumRows

Select * from [Order Details] where OrderId >= @first_id

 

SET ROWCOUNT 0

GO
 

CREATE PROCEDURE dbo.GetOrderCount

AS

    SELECT  count(*)  FROM [Order Details]

GO
 

---------------------------

Data Access Class:

public class TestTier

{
 

    public DataSet BindUsers(int startRowIndex, int maximumRows, string sortBy)

    {

        SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["testcon_north"].ConnectionString);        

        SqlCommand com = new SqlCommand("GetTestData", con);

        com.CommandType = CommandType.StoredProcedure;

        com.Parameters.Add("@startRowIndex", SqlDbType.Int, 4).Value = startRowIndex;

        com.Parameters.Add("@maximumRows", SqlDbType.Int, 4).Value = maximumRows;

        com.Parameters.Add("@sortBy",SqlDbType.VarChar).Value = sortBy;

        SqlDataAdapter ada = new SqlDataAdapter(com);

        DataSet ds = new DataSet();

        ada.Fill(ds);

        return ds;   

    }
 

    public int GetOrderCount()

    {

        SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["testcon_north"].ConnectionString);

        con.Open();

        SqlCommand com = new SqlCommand("GetOrderCount", con);

        SqlDataReader dr = com.ExecuteReader();

        int count = 0;

        while (dr.Read())

        {

            if (dr[0] != null)

                int.TryParse(dr[0].ToString(), out count);           

        }

        return count;

    }
 
 

}

Open in new window

0

Featured Post

What Is Threat Intelligence?

Threat intelligence is often discussed, but rarely understood. Starting with a precise definition, along with clear business goals, is essential.

Join & Write a Comment

Suggested Solutions

Using Quotation Marks in PHP This question (http://www.experts-exchange.com/Web_Development/Web_Languages-Standards/PHP/Q_28217211.html) seems to come up a lot for developers who are new to PHP.  And it got me thinking, "How can we explain the rule…
Exception Handling is in the core of any application that is able to dignify its name. In this article, I'll guide you through the process of writing a DRY (Don't Repeat Yourself) Exception Handling mechanism, using Aspect Oriented Programming.
This video teaches users how to migrate an existing Wordpress website to a new domain.
Wufoo.com provides powerful tools for surveying targeted groups, and utilizing data from completed surveys to find trends, discover areas of demand or customer expectation, and make business decisions on products or services.

763 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

11 Experts available now in Live!

Get 1:1 Help Now