SQL Possibly Not Returning Values For A Query In Visual Basic?
Jun 29, 2010
In my code I enter a string in a text box and have the query check the server for the entry. If it exists it returns the string and the date into two separate variables. The database only has TrackingNumber and Date. Below is the code. As of right now i get "Invalid attempt to read when no data is present." at the "If (sdr("TrackingNumber") IsNot Nothing) Then" line.
Public Function CreateSqlParameter(ByVal name As String, ByVal dbType As DbType, ByVal direction As ParameterDirection, ByVal value As Object) As SqlParameter
Dim parameter As SqlParameter = New SqlParameter()
i am working on this code that is going to query a database for an entry and return the value of the tracking number and the time to print on a label if the tracking number exist in the databse. it does not right now it only seems to reprint the number that is enetered in a text box and it does not grab the date. here is the code.
Dim TrNum As String = Me.DupTNText.Text Dim TrDate As <=something if it is even needed Dim connectionString As String = "Data Source=XXXXX;Initial Catalog=YYYYY;Integrated Security=True;Pooling=False;Encrypt=False" Dim cmdText As String = "SELECT TrackingNumber, Date" & _
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but when i run the query in my project the reader in not reading correctly...even if values are present is returns false and if values are not there then it returns true.
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I have the follow Linq query that is in a web application that was converted from .NET 1.1 to 3.5:
dim objListOfFilteredDataRows = from datarows as datarow in objDataSet.tables(0).rows _ where datarows("SomeColumn") = SomeValue
I have the exact same query in an application that was created using .NET 3.5 and the query returns an IEnumerable. However the query in the converted application is returning:
**Edit: When I highlight the expression, the intellisense says that it doesn't know the type of objListOfFilteredDataRows and assumes its a type of "Object". Why is the type not infered in the converted 1.1 application but is infered in the "native" 3.5?**
What am I missing here? How do I convert the "WhereEnumeratorIterator`1 to an IEnumerable?
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With BusinessLayerObjectManager.Context Return (From p As [Property] In .PropertySet Join pt As Prospect In .Prospects On pt.Property.propertyID Equals p.propertyID
I'm trying to run a query from a search form by date and I'm receiving the following error:[Teradata Database] Partial string matching requires character operands.The code for the search is:
ElseIf OptDate.Checked = True Then sSQL &= "DATE_SUBMIT Like ('" & txtDateRec1.Text & "%')" End If