July 24, 2008 07:22pm pdt

1. naspinski 31,850
2. CarlVerret 17,064
3. sjturner2 14,250
4. Fernando... 8,700
5. Ceiled 6,500
6. CMYScott 5,750
7. TheLearn... 5,172
8. Praesidium 4,664
9. GreenGho... 4,150
10. emoreau 3,050
11. gardavis 3,000
11. Dhaest 3,000
13. ZachSmith 2,600
14. mark_wills 2,500
15. IndianOcean 2,000
15. REA_AN... 2,000
15. cottsak 2,000
15. renjurdevan 2,000
15. primeMov... 2,000
15. Koocurrent 2,000
15. Smart_Man 2,000
15. irps20001 2,000
15. Rahu_ket... 2,000
15. vs1784 2,000
15. p_davis 2,000
15. VBRocks 2,000
15. SwissKnife 2,000
15. JimFive 2,000
15. vb_jonas 2,000
15. dstanley9 2,000

1. naspinski 31,850
2. sjturner2 20,250
3. CarlVerret 17,064
4. Fernando... 8,700
5. Ceiled 6,500
6. CMYScott 5,750
7. TheLearn... 5,172
8. Praesidium 4,664
9. GreenGho... 4,150
10. emoreau 3,050
11. gardavis 3,000
11. Dhaest 3,000
13. ZachSmith 2,600
14. mark_wills 2,500
15. cottsak 2,000
15. Rahu_ket... 2,000
15. vs1784 2,000
15. dstanley9 2,000
15. primeMov... 2,000
15. JimFive 2,000
15. michtsoi 2,000
15. p_davis 2,000
15. REA_AN... 2,000
15. vb_jonas 2,000
15. Smart_Man 2,000
15. Koocurrent 2,000
15. irps20001 2,000
15. SwissKnife 2,000
15. SteveH_UK 2,000
15. renjurdevan 2,000
15. IndianOcean 2,000
15. VBRocks 2,000

03.24.2008 at 10:22AM PDT, ID: 23264636

	[x] Attachment Details

[x]

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7.8

Strong Type Perfered in LINQ to SQL Queries

Zones: Language Integrated Query - LINQ, Microsoft Visual C#.Net, .Net Editors & IDEs

Tags: .NET, LINQ, C#, VB, Visual Studio 2008 .NET 3.5, Cannot implicitly convert type 'System.Linq.IQueryable<AnonymousType#1>' to 'System.Linq.IQueryable<T>'. An explicit conversion exists (are you missing a cas, LINQ to SQL

It appears the following code cause a problem that took me an hour and half to find the solution to. There was only one related artice on the web I could find, so I thought I would post the problem and solution here since this site is indexed better and more offten.

I kept getting a build error message for a complet LINQ query where I only wanted to select cirtian fields from the table. I had used Anonmyous types before with no problems why now.

The error message was the 'An Explicit conversion exsists, (are you missing a cast?)'

No nothing was casted or appeared to need it I only wanted to return the result of the query as an IQueryable.
That is the problem. solution to follow.

         
           
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             public static IQueryable GetEmployeejobType_DropDown(String EmployeeId)
{
 
	NTKSDataContext ntks = new NTKSDataContext();
 
	var jobType = from n in ntks.Employee
			where n.DelFlag != true
			select n;
 
	if (EmployeeId != null && EmployeeId != "")
	{
		jobType = from n in jobType
			where n.EmployeeID == EmployeeId
			select n;
	}
 
	jobType = from n in jobType
		orderby n.jobType
		select new { Description = n.jobType.PESDescription, JobNo = n.JobNo, Company = n.jobType.CompanyName };
 
	return (IQueryable)jobType;
}

           
         

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Question Stats

Zone: Programming

Question Asked By: awykel

Solution Provided By: awykel

Participating Experts: 0

Solution Grade: A

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