ADO.NET :: Use Entity Framework Model For Visual Studio 2010?
Mar 28, 2011
I want to use entity framework model for visual studio 2010. I am using oracle database. i was wondering
if it is possible to use entity framework for oracle. If it is not possible then I will just use simple ADO.net and call stord proc and packages.I already downloaded oracle data provider for entity frameowrk from codeplex web site.can someone give me any example that connects to a sample oracle database and use LINQ to oracle
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Useful info:
Windows 7 64-bit
Visual Studio 2010 Ultimate
Firebird 2.5.0
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DDEX 2.0.5
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Mar 10, 2011
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Jul 29, 2010
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Mar 29, 2011
I want to use entity framework model for visual studio 2010. I am using oracle database. i was wondering if it is possible to use entity framework for oracle. If it is not possible then I will just use simple ADO.net and call stord proc and packages. I already downloaded oracle data provider for entity frameowrk from codeplex web site. I could not see oracle database option when connecting to oracle databse in LINQ to sql. can someone give me any example that connects to a sample oracle database and use LINQ to oracle
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Jan 6, 2011
I am using C# with Entity Framework Model. I want to fill a textbox (tbPrepProbComment.Text ) with a string (S0PrepProbSolveComment) from a table (EightDProject). I'm getting the key for the EightDProject from a textbox (SelectTrackingNumber). I'm not sure my query is working because when I look at the query result ( project ) I see the error" 'mykey' could not be resolved in the current scope or context. Make sure that all referenced variables are in scope, that required schemas are loaded, and that namespaces are referenced correctly." If the query was working I dont know how to pull the field from the distinct row it should return and put it in the textbox. I've tried the line tbPrepProbComment.Text = project.S0PrepProbSolveComment; Here is my code:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data.Objects;
namespace EightD1
{
public partial class Page1 : System.Web.UI.Page
{
public int mykey;
public string comment;
public object obj;
// the entity framework model
EightDdbEntities EightDP = new EightDdbEntities();
protected void Page_Load(object sender, EventArgs e)
{
SelectTrackingNumber.Focus();
}
//When the project id has been selected get projectdata and bind to page data holders
protected void SelectTrackingNumber_TextChanged(object sender, EventArgs e)
{
BindData();
}
private void BindData()
{
try
{
mykey = Convert.ToInt32(SelectTrackingNumber.Text.ToString());
}
catch
{
mykey = 0;
}
ObjectQuery<EightDProject> project = EightDP.CreateQuery<EightDProject>(
"SELECT DISTINCT p FROM EightDProjects AS p WHERE p.EightDID = mykey ");
//tbPrepProbComment.Text = project.S0PrepProbSolveComment;
}
}
}
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