Solved

Casting Difficulties

Posted on 2009-07-05
3
347 Views
Last Modified: 2013-11-11
Hi Experts,

I have a LINQ expression that produces a single decimal number - 4201.00D.

The problem is, I cannot get this to be accepted into the textbox I have.

While the LINQ statement looks a little complicated (see below) it works and it delivers the number above. I cannot get my textbox to accept this number.

The error  I get is:

Conversion from type 'DataQuery(Of Decimal)' to type 'String' is not valid.

I have tried Ctype and trycast (trycast just gave me nothing).

So, my question is, how to you cast succesfully to allow a textbox to accept your LINQ statement result.

Kind Regards

Simon
Dim clientBalance = (From ledger In db.ledgers _
                                    Where (ledger.acc_id = "2" And ledger.tran_type = "CI" And ledger.payment_complete = False And ledger.client_no = clientNo) Or _
                                   (ledger.acc_id = "2" And ledger.tran_type = "PMT" And ledger.payment_complete = False And ledger.client_no = clientNo) _
                                    Select _
                                    balance = -1 * (From ledg2 In db.ledgers Where (ledg2.tran_type = "CI" And ledg2.acc_id = "2" And ledg2.payment_complete = False And ledg2.client_no = ledger.client_no) Select ledg2.amount).Sum - _
                                                    If((From ledg3 In db.ledgers Join ledg4 In db.ledgers On ledg3.posting_id Equals ledg4.link_posting_id Where _
                                                    (ledg3.acc_id = "2" And ledg3.payment_complete = False And ledg3.client_no = ledger.client_no) Select ledg4.amount).Count > 0, _
                                                    (From ledg3 In db.ledgers Join ledg4 In db.ledgers On ledg3.posting_id Equals ledg4.link_posting_id Where _
                                                    (ledg3.acc_id = "2" And ledg3.payment_complete = False And ledg3.client_no = ledger.client_no) Select ledg4.amount).Sum, _
                                                    (From ledg3 In db.ledgers Join ledg4 In db.ledgers On ledg3.posting_id Equals ledg4.link_posting_id Where _
                                                    (ledg3.acc_id = "2" And ledg3.payment_complete = False And ledg3.client_no = ledger.client_no) Select ledg4.amount).Count)).Distinct

Open in new window

0
Comment
Question by:si2030
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
3 Comments
 
LVL 9

Assisted Solution

by:Hawkvalley1
Hawkvalley1 earned 100 total points
ID: 24779321
Have you tried:

textbox1.Text = clientBalance.ToString
0
 
LVL 7

Assisted Solution

by:Mohed Sharfi
Mohed Sharfi earned 100 total points
ID: 24779349
Hi si2030,
please try this code to cast decimal to string
thanks
decimal Mydecimal = 4201.00D;
string Mystr;
Object MyObject;
MyObject = Mystr; // put  into object
Mydecimal = ()MyObject; // two-step cast works
Mystr = (string) Mydecimal;
Mystr = (string)MyObject; // throws exception

Open in new window

0
 

Accepted Solution

by:
si2030 earned 0 total points
ID: 24779527
I have worked this out. It was a LINQ issue in that while I did use distinct it still treated the result as an array.. as per (0)4201.00D. By adding ".single" to the end of ".distinct" the result was transformed into a single item.
0

Featured Post

Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Creating an analog clock UserControl seems fairly straight forward.  It is, after all, essentially just a circle with several lines in it!  Two common approaches for rendering an analog clock typically involve either manually calculating points with…
The ECB site provides FX rates for major currencies since its inception in 1999 in the form of an XML feed. The files have the following format (reducted for brevity) (CODE) There are three files available HERE (http://www.ecb.europa.eu/stats/exch…
The Email Laundry PDF encryption service allows companies to send confidential encrypted  emails to anybody. The PDF document can also contain attachments that are embedded in the encrypted PDF. The password is randomly generated by The Email Laundr…

756 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