Sql Server - ADo Dot Net Passing The Table Datatype As Parameter?
May 13, 2011what are the changes I need to for my DAL to support this.
View 1 Replieswhat are the changes I need to for my DAL to support this.
View 1 RepliesI'm attempting to pass in a collection of dates to a T-SQL 'IN' clause via a date array (see below for how data is collated).
'Workout weeks difference between start and enddate
Dim wksDifference As Integer = CType(DateDiff(DateInterval.WeekOfYear, bookingStartDate, bookingEndDate), Integer)
[code].....
I am wondering if datatype can be passed as a parameter in a function..
for example..
Private Function CreateDT(ByVal myDT As DataTable, ByVal myColName As String As DataTable
(
myDT.Columns.Add(myColName, GetType(myColDataType))
)
I am trying to execute a stored procedure which has table valued parameters along with other parameters. The only parameters I need to pass values for are latitude/longitude range and dates. For the others, I need to pass null. After a lot of searching and a lot of trial and error, I came up with the following:
Dim empty
As
IEnumerable =
Enumerable.Empty(Of
SqlDataRecord)()
I then pass empty for the table valued parameters. This works for the first two tvp's, but on the third one, I get this error:
There are no records in the SqlDataRecord enumeration. Tho send a table-valued parameter with no rows, use a null referece for the value instead.
how to make this work? I do not have control over the database or the stored procedure, so I can't change that. The code that calls the stored procedure is:
GetHistoryByMultipleCriteriaTableAdapter1.Fill(AISTable, empty, empty, empty, vbNullString, vbNullString, -60, -25, -35, 10, "4/1/2012 12:00 AM", "4/4/2012 12:00 AM", vbNullString)
I am not a developer, but an engineer who does development occasionally, so I may need more explanation than the average developer.
i am working on visual stdio 2008(vb.net) and sql server 2008 i working on crystal report 9 i have created a stored procedure in sql server i have add this procedure in crystal report data expert now i just want to pass a parameter to crystal report so that it will show me data in crystal report?
View 2 RepliesI have column with bit datatype in sql server table(2008).while returing to text box its returning true in text box instead of 1.i tried converting it from true to 1 using txtboolvalue.text=Math.abs(CINT(ReturnList.Item(34)).tostring. But it doesnt convert true to 1
Secondly: im checking for columns in datatable if there are any nulls. its checking for nulls in the sqlserver table but its returning true if there is a null.i just want it to return NULL is there is null i textbox..
CODE:
Then
CODE:
Here's the situation. Due to the design of the database I have to work with, I need to write a stored procedure in such a way that I can pass in the name of the table to be queried against if at all possible. The program in question does its processing by jobs, and each job gets its own table created in the database, IE table-jobid1, table-jobid2, table-jobid3, etc. Unfortunately, there's nothing I can do about this design - I'm stuck with it.
However, now, I need to do data mining against these individualized tables. I'd like to avoid doing the SQL in the code files at all costs if possible. Ideally, I'd like to have a stored procedure similar to:
[Code]...
Is this even possible in SQL Server 2005? Alternate ways to keep the SQL out of the code behind would be welcome too, if this isn't possible.
I have two function having same name only datatype changed in parameter
SaveData( Byval p as byte())
SaveData(Byval p as string)
By the definition of polymorphism this should work.It does not show any compile time error but when I run the application and call the function it does not recognize it. And gives the error Function SaveData is not defined.But when I put a break point on the function it works fine.
[Code]...
I am working with TVP and I am trying to pass a data table to the stored procedure as TVP. When the command tries to ExecuteNonQuery it throws an error:Operand type clash: datetime2 is incompatible with int. The data for table-valued parameter "@tvpPermitWork" doesn't conform to the table type of the parameter.I checked the data table using the visualizer and I find all the data to be correct. I am now stuck and I don't have the time to change it to stored procedures with individual parameters.
View 1 RepliesI want to compare between the cell value with the value (parameter) in database. As example, if my cellvalue value is 3 and my paramater(a) in my database is 5 it will be like this
if cellvalue<a then
(some code)
end if
I don't know the exact data type. The reason I need to use data type is because my data is dynamic.
Here is my
protected SubGridView1_RowDataBound(ByVal Sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GridView1.RowDataBound
con = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;DataSource=C:UsersmeDocumentsVisual Studio 2005WebSitesCSGCSG1.mdb")
con.Open()
[Code] ......
I'm new to webservices and xml.I've been given the task of creating a webservice with a method called UploadData. UploadData(Username as string, Pwd as string, XMLdata as String)The XMLData will be xml data 2-5mb.Is String the best data type?I've tried the stream datatype and that does not work as a parameter on a webservice.
View 2 RepliesI would like to retrieve the datatype of a specific element from a SQL table. The situation is that I am importing data from a source that does not match column-to-column with my SQL table. The objective is to compare the datatype from my source file to what it MUST be when I write it to my SQL table, and throw an error on a mismatch. I would like to do this without creating a class that contains the layout of my target table if possible.
View 2 RepliesI am calling a crystal xi report from a windows form and passing 2 date parameters and a customer name. In some cases this customer name contains '&' eg Brown & Williams
In these cases my report fails and errors. if the name doesn't contain '&' it works. How can I pass the parameter with a & in it ?
I have a field in a SQL Server table that is of type bit.When I try to use a Boolean in VB.NET when passing parameters to a stored procedure, there are never any matches. I have also tried passing an integer to the stored procedure and that does not work either.
View 4 RepliesI created a dataset that is getting data from an access database. Now i would like to go further and make the dataset query accept a parameter from a form datepick value. the query in my table adapter I have changed it as follows to accept a parameter on date1.[code]The code I am using in my form is as below. I get a null reference exception on the second line(Object reference not set to an instance of an object). it seems as if my selectCommand is bringing nothing.[code]
View 4 RepliesI have a bound DataGridView (dgvBuild) that contains data based on a "ProductID" that is derived from selecting the value from a ComboBox. How do I pass the ComboBox Value to the DataAdapter to retrieve records to reload the dgvBuild? Below is the code for theDataAdapter.This is the line that was created when I bound the DataGridView to a DB Table.
View 8 RepliesI need to pass an event as a parameter to a function and I'm wondering if there is any way of doing this.The reason why I need to do this is because I have a sequence of two lines of code that is littered all over my program, where I dynamically remove the handler to an event, then set the handler again. I'm doing this for several different events and event handlers, so I've decided to write a function that does this. As an example, let's say I have a combobox in my code called combobox1, and I have the handler called indexChangedHandler. In several places of my code, I have the following two lines:[code]Now, I don't want to keep on repeating the above two lines of code (or similar) all over my program, so I'm looking for a way to do this:[code]So far, the "evt as Event" part of the argument of the setHandler function is giving an error. Any ideas on the right way to do this will be very welcomed.
View 2 RepliesI need to pass an event as a parameter to a function and I'm wondering if there is any way of doing this.
The reason why I need to do this is because I have a sequence of two lines of code that is littered all over my program, where I dynamically remove the handler to an event, then set the handler again. I'm doing this for several different events and event handlers, so I've decided to write a function that does this.
As an example, let's say I have a combobox in my code called combobox1, and I have the handler called indexChangedHandler. In several places of my code, I have the following two lines:
RemoveHandler combobox1.SelectedIndexChanged, AddressOf indexChangedHandler
AddHandler combobox1.SelectedIndexChanged, AddressOf indexChangedHandler
Now, I don't want to keep on repeating the above two lines of code (or similar) all over my program, so I'm looking for a way to do this:
Private Sub setHandler(evt As Event, hndler As eventhandler)
RemoveHandler evt, hndler
AddHandler evt, hndler
End Sub
so that everywhere where those two lines of code(or similar) occur in my program, I can just replace them with:
setHandler(combobox1.SelectedIndexChanged, AddressOf indexChangedHandler)
So far, the "evt as Event" part of the argument of the setHandler function is giving an error.
P.S I've asked this question on a couple of other forums and keep getting asked why I would want to set the handler immediately after removing it. The reason is because dynamically adding an event handler n-times causes the handler to be executed n-times when the event occurs. To avoid this, i.e to ensure that the handler is executed just once when the event occurs, I first remove the handler each time I want to add the handler dynamically.
You might be asking why the handler would be added several times in the first place... The reason is because I add the handler only after a particular event, say E1, in my form has occured (I add the handler within the handler of event E1). And event E1 can occur several times within my form. If I do not remove the handler each time before adding it again, the handler gets added and thus executed several times.
Whatever the case, the processing occuring within the function is not of ultimate importance to me at this time, but rather just the means of passing an event as a parameter.
I'd like to create a function myFunc with one parameter, which is a delegate. I should be able to call it with a delegate as parameter.E.g.[code]But how do I code myFunc, in other words, how do I enable myFunc to have it passed a delegate so that it can be called using myFunc(addressof test Func)?
View 4 RepliesI'm wondering if this sort of thing is possible in VB.NET.. say I have a routine which accepts an integer array, defined as:
Sub WriteTable(iRows As Integer, arrColumns As Integer())
The arrColumns parameter is an integer array of column widths.
I can pass a value by doing this:
[code]....
I am using Autonumber datatype for the very first time when inserting anything to the table it does not give any problem but when i am trying to retrive data using the Autonumber field i get the following errorSystem.Data.OleDb.OleDbException was unhandled Error Code=- 21472 17913 Message= "Data type mismatch in criteria expression." Source="Microsoft Office Access Database Engine"below is the code that i have used. [code]
View 6 RepliesDim cDT as date
strSQL = "Insert Into computetb (period_id, date, staffer_no, day_type, restday, rate_hr, regular_hr, ot_hr, night_diff, basic_pay, ot_pay, nd_pay) Values (" & gPeriodID & ",#" & cDT & "#," & cID & ",'" & cTYP & "'," & cREST & "," & cRATE & "," & cREG & "," & cOT & "," & cND & "," & bp & "," & ot & "," & nd & ")"
dbs.Execute (strSQL)
How can I use BigInt datatype of sql server in my vb.net code?
View 10 Repliessample code for passing parameter to crysatl report dynamically in vb.net ...?
View 2 RepliesI wrote vba function in excel and I want to call this function in vb.net with parameter passing.
View 2 RepliesI am getting error when debugging a project. The error is as below,
"FormatException was unhandled
String was not recognized as a valid DateTime."
Highlighting the following line
[code]...
Assuming I have the following code that is iterating over controls in a panel setting various control information.Private Sub BindDataFields()
[Code]...
Is there a way to pass an optional parameter to a webservice, instead of having to overload the method?If the webservice user is accessing the webservice directly, I want to do ActionA, if the user is accessing the webservice through my web interface, I want to do ActionA + ActionB.
View 1 RepliesCan't seem to figure out why this is not working.
Dim Myspcmd As New SqlCommand("spDataImport", myConnection)
Myspcmd.CommandType = CommandType.StoredProcedure
Myspcmd.Parameters.Add(New SqlParameter("@FileName", Data.SqlDbType.NVarChar, 100)).Direction = ParameterDirection.Input
Myspcmd.Parameters("@FileName").Value = "Import_File.dtsx"
myConnection.Open()
[Code]...
I'm calling unmanaged C++ Dll function from VB.Net project by usin dllimport attribute like this;
<DllImport("Injection.dll", CallingConvention:=CallingConvention.Cdecl)> _
Private Shared Sub Injector(ByRef Client As String, ByRef Dll As String)
End Sub