DataSource Controls :: Looking For A Solution Using IN-Operator With LINQ TO SQL?

Jun 21, 2010

i am looking for a solution using IN-Operator with LINQ TO SQL. I have found many examples after searching but no exemple which is using a Textbox.In my Textbox i put my ids 2,4,6,7,9 and after clicking the button, it have to show me my Records. But it does not.The error-message shwos me a wrong format.Ausnahmedetails: System.FormatException: Die Eingabezeichenfolge hat das falsche Format.

Zeile 5: Dim result As String = ""
Zeile 6: Dim intText As String = Me.tbKursid.Text
>>>>>>>> Zeile 7: Dim myText() As Integer = {Convert.ToInt32(intText)}
Zeile 8: Dim db As New seminarDataContext
Zeile 9: Dim daten = From c In db.vSchluessel _

If i use Dim myText() As Integer = {1,4,5,6} then it runs without problems. What is wrong?

[Code]....

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DataSource Controls :: Using Visual Studio 2008 Query Builder And Am Trying To Pass A Value To A Parameter That Uses The IN OPERATOR?

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[Code]....

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DataSource Controls :: LINQ To DataSet And LINQ To Object

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txtLastName.Text = db.usp_ATI_FetchPatientDetails(iPatientID).ElementAt(0).Last_Name.ToString();

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My question is that, for each control the Stored Procedure called or not? If it is yes then it is time consuming and I need to use LINQ to DataSet or LINQ to Object rather than to call SP for each control. What is difference between LINQ to DataSet and LINQ to Object?

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[Code]....

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[URL]

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[code]....

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[Code]....

[Code]....

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[Code]....

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[Code]....

Query:

[Code]....

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[Code]....

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Alternately, from a DBA perspective there are some issues. One is that a lot of DBA's like to do security at the sproc level, and this level would be gone. Another issue is that if the DBA wanted to mimic some sql functionality that the application is doing, possibly for a scripted action, they wouldn't be able to simply call the sproc that the application is using. Also they wouldn't be able to tell which columns are actively being used and which are not, as it'd be C# code specifying which columns are returned rather than sprocs. Lastly, if something needed to be changed structurally, it'd require a recompile and redeploy of the entire app rather than a simple sql script of 2 being deployed.

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I would also like to check and make sure it is only returning one row, if it returns multiple i need to throw an exception

[Code]....

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