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Hello !
i'm working on a project with entity framework.
i have a form with several textbox , and i want to create a query depending on values on these textboxs.
The code is :
dim query= From t in context.customs where t.ndi=Me.TextBox1.Text
Select t
But this code doesn't work , and i get an error.If i change my code like :
dim x=Me.Textbox1.Text
dim query= From t in context.customs where t.ndi=x
Select t
everything is OK. But is possible to include on query directly the value of textbox like my first code ?
thank you.
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alejx wrote: But this code doesn't work , and i get an error.
Perhaps you could include the message of the error in your post? It might help in determining what's wrong. I'm guessing that it has to do with an implicit conversion.
Why is your <a href="http://msdn.microsoft.com/en-US/library/zcd4xwzs%28v=VS.80%29.aspx">option strict</a>[<a href="http://msdn.microsoft.com/en-US/library/zcd4xwzs%28v=VS.80%29.aspx" target="_blank" title="New Window">^</a>] off?
Bastard Programmer from Hell 
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LINQ to Entities does not recognize the method 'System.Object CompareObjectEqual(System.Object, System.Object, Boolean)' method, and this method cannot be translated into a store expression.
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Does the query below work? (I'm not at a compiler, can't test now)
dim query= From t in context.customs where CStr(t.ndi)=Me.TextBox1.Text
Select t
Bastard Programmer from Hell
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doesn't work.The same error message.
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..because the compiler can't "guess" what the correct type is, and hence doesn't know what methods can or cannot be called. I suggest you strong-type your variables and put the option strict back to "on".
Bastard Programmer from Hell
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thx you so much to ALL of you who gaved me advices _hope you will always in GOD blesses___amiiiinnnnnn
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i want to learn and know much about visual basic_especially VB coding and source code_any one can teach me and give me the software and source code ( special code )??? pleaseee...i will thx fully if all of your kindes_ thx u so much
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I'd suggest you start on MSDN[^]
Bastard Programmer from Hell
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hmmm teacher_may ask you?? what is MSDN ???
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princeza aurora nada wrote: hmmm teacher_may ask you?? what is MSDN ???
How about you click on the link and try to find out, hmm??
"I love deadlines. I like the whooshing sound they make as they fly by." (DNA)
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It's easy.
The steps: -
1. Find ideas and objectives of the software.
2. And try to find the source code via google or any other server.
(This is a suggestion only.  )
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i'vent the software yet_:(_can you share it to me pleaseee_:(_i will thx fully for your kindess_
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If you are talking about VB6 then drop that idea, Start with VB.NET.
Agree with Eddy, MSDN is best to start.
Here in CP you can find many articles in VB.NET, see those VB.NET articles @ Codeproject[^]
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thx you for your great advises and support _thx you so much brothe_ i'll try it hope you will always in GOD Blesses_
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Hi there. If you want to program, you need a compiler right? Then go to Microsoft and download Visual Studio 2010 Express version to use.
Even if you decide to learn VB.NET (just an improved version of VB), you still have to decide if you want to learn to program for Windows or for Web. My advise is to learn how to program for web first. That could be a bit easier to start with.
Once you become more confident in web programming, then you may switch to Windows programming.
Good luck.
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how get hardware serial no. because one pc one software & get hardware serial genrator for my project in vb 6.0 plz send this code for get hardware serial .
thanks
kamal prajapati
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Have a look just 2 threads down from your post. 
When I was a coder, we worked on algorithms. Today, we memorize APIs for countless libraries — those libraries have the algorithms - Eric Allman
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See also this question[^]; are you the same person?
Unrequited desire is character building. OriginalGriff
I'm sitting here giving you a standing ovation - Len Goodman
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Someone please help me. I need to resize the image I am retrieving from the database so that it can fit into a picturebox on a vb.net form. I want the image to be viewed more like we view a preview of an image. I dont want the original picture to be altered though.
please help
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There is PictureBox.SizeMode with a lot of choices for you.
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Subtle!
------------------------------------
I will never again mention that I was the poster of the One Millionth Lounge Post, nor that it was complete drivel. Dalek Dave
CCC Link[ ^]
Trolls[ ^]
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I am.
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I wrote an XML schema in Liquid XML Studio Developer Edition. I had the software create a sample XML file based on the schema and now I'm trying to write a VB application that will create a valid XML file. I can get the entire XML file to write properly, except for the root element, which cause the file to not validate.
In the sample XML file that was created based on the schema, the root element looks like this:
<mycompany:RawData xmlns:mycompany="http://www.lewcorp.com/2011/RawJbxSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.mycompanywebsite.com/2011/RawDataSchema" UnitType="Commons" version="string" MinVersionRequired="7">
The code I currently have is this:
Using writer As XmlWriter = XmlWriter.Create(XMLFileName, settings)
With writer
.WriteStartDocument()
.WriteStartElement("lew")
.WriteAttributeString("xmlns", "mycompany", "", "http://www.lewcorp.com/2011/RawDataSchema")
.WriteAttributeString("xmlns", "xsi", "", "http://www.w3.org/2001/XMLSchema-instance")
.WriteAttributeString("xsi", "schemaLocation", "", "http://www.mycompanywebsite.com/2011/RawDataSchema")
.WriteAttributeString("UnitType","Commons")
.WriteAttributeString("version", "1.0")
.WriteAttributeString("MinVersionRequired", "7")
However that produces this:
<mycompany xmlns:mycompany="http://www.lewcorp.com/2011/RawDataSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" schemaLocation="http://www.mycompanywebsite.com/2011/RawDataSchema" UnitType="Commons" version="1.0" MinVersionRequired="7">
I have tried modifying the lines that write the attribute strings for the past hour and can't get it to match. There are two items that I can't figure out. First is why the schemaLocation does not have the xsi prefix. However the main thing that I believe is causing my XML file to not validate is the fact that the root element mycompany does not have the suffix of RawData.
I will admit that this is the first time I'm using the XmlWriter but I just can't find anything online and don't exactly know what to search to fix. Although it seems that what I'm trying to do is not absolutely necessary, my company wants it that way because eventually we are going to have several different schemas that will mark various stages of data analysis (for example we might have mycompany:RawData, mycompany:Reviewed, mycompany:Merged). Plus we very often share data with other companies so we also want our name in there.
Any help would be greatly appreciated. Thanks in advance.
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hi,
i am a vb6.0 user and i would like to know how to get unique serial no. of hardware like RAM, MotherBoard, Harddisk. and after getting this code how do work like when i make a setup than it will display this serial no on screen and when i use this to generate key for that harware and how i will check. so no one can use withour serial key generated by me.
Thanks
Regards
Pratik Sagar
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