Solved

ObjectDataSource Wizard doesn't detect Class files in App_Code

Posted on 2008-10-08
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Last Modified: 2012-05-05
Hi,

I'm trying to set up a web site with Class files in the App_Code directory.  When using the ObjectDataWizard configuration set up wizard, the first screen reads "Select your business object"

The dropdown only contains references to my master page files, no sign of the .cs files I have created
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Question by:krapvag
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6 Comments
 
LVL 18

Expert Comment

by:carlnorrbom
ID: 22670053
Hi,

Have You specified the component model attributes in your class files? I.e:

[System.ComponentModel.DataObject]

public partial class MyDataAccess {
    [System.ComponentModel.DataObjectMethodAttribute(System.ComponentModel.DataObjectMethodType.Select, true)]
    public static DataSet GetMyData()    {

    }
}

/Carl.
0
 
LVL 1

Author Comment

by:krapvag
ID: 22670109
Thanks for the quick response.

I don't think I have.  Would I do this in the CS file?  I'm new to .net, so I've added the class file I'm trying to use

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Collections.Generic;
using System.Data.SqlClient;
 
/// <summary>
/// Summary description for TimePlanData
/// </summary>
/// 
 
public class TimePlanData
{
 
    private string _conString;
 
	public TimePlanData()
	{
        _conString = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;
	}
 
    public IList<TimePlan> GetTimePlans(int idFilter)
    {
        string sql = "SELECT * FROM TimePlan ";
 
        if (idFilter > 0)
        {
            sql += "where tp_id=" + idFilter;
        }
 
        sql += " order by tp_name";
        SqlConnection connection = null;
        IDataReader reader = null;
 
        IList<TimePlan> result = new List<TimePlan>();
        try
        {
            connection = new SqlConnection(_conString);
            connection.Open();
            IDbCommand cmd = connection.CreateCommand();
            cmd.CommandText = sql;
            reader = cmd.ExecuteReader();
            while (reader.Read())
            {
                result.Add(new TimePlan(reader));
            }
        }
        catch (Exception ex)
        {
        }
        finally
        {
            if (reader != null)
                reader.Close();
            if (connection != null)
                connection.Close();
        }
        return result;
    }
 
}

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0
 
LVL 18

Accepted Solution

by:
carlnorrbom earned 500 total points
ID: 22671506
Hi,

You should get by through changing your class file as the attached snippet.

/Carl.
using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Collections.Generic;
using System.Data.SqlClient;
using System.ComponentModel;
 
/// <summary>
/// Summary description for TimePlanData
/// </summary>
/// 
 
[DataObject(true)]
public class TimePlanData
{
 
    private string _conString;
 
	public TimePlanData()
	{
        _conString = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;
	}
    [DataObjectMethodAttribute(DataObjectMethodType.Select, true)]
    public IList<TimePlan> GetTimePlans(int idFilter)
    {
        string sql = "SELECT * FROM TimePlan ";
 
        if (idFilter > 0)
        {
            sql += "where tp_id=" + idFilter;
        }
 
        sql += " order by tp_name";
        SqlConnection connection = null;
        IDataReader reader = null;
 
        IList<TimePlan> result = new List<TimePlan>();
        try
        {
            connection = new SqlConnection(_conString);
            connection.Open();
            IDbCommand cmd = connection.CreateCommand();
            cmd.CommandText = sql;
            reader = cmd.ExecuteReader();
            while (reader.Read())
            {
                result.Add(new TimePlan(reader));
            }
        }
        catch (Exception ex)
        {
        }
        finally
        {
            if (reader != null)
                reader.Close();
            if (connection != null)
                connection.Close();
        }
        return result;
    }
 
} 

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LVL 1

Author Closing Comment

by:krapvag
ID: 31504266
Excellent, thanks!

I take it for every other method I add, for example an Insert method, I put the line:
 [DataObjectMethodAttribute(DataObjectMethodType.Insert, true)]

before it?
0
 
LVL 18

Expert Comment

by:carlnorrbom
ID: 22671895
Hi,

Yes, exactly.

/Carl.
0
 
LVL 1

Author Comment

by:krapvag
ID: 22842548
Hi,

I'm trying to add an Insert routine to this class file, but the ObjectDataSource wizard is only detecting the "GetData" method

It is not showing the "AddData" method, and when I type in "[DataObjectMethodAttribute" this is not detected in the intelisense


[DataObjectMethodAttribute(DataObjectMethodType.Insert, true)]
    public void AddData()
    {
 
    }
 
    [DataObjectMethodAttribute(DataObjectMethodType.Select, true)]
    public IList<Data999> GetData(string telNumber)
    {

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