Asp.net - Must Declare Scalar Variable When It Is Already Defined And Sytax Error Near 'nvarchar' When Updating
May 16, 2012
Solution at the bottom. I receive the following error when trying to update records: Must declare Scalar Variable @PaymentTermID Problem is, @PaymentTermID should be defined already in the Update parameters. The 2 functions for onrowdatabound and onrowupdate are tweaked versions of the ones found here for the DropDownList: GridViewRow.DataItem Property. Delete works fine. No new lines are added, just names changed around. I am not exactly used to working with asp objects.
[Code]...
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Oct 11, 2011
I double check the query and it is still throwing the error..
sql = "INSERT INTO " & tbl & " (userName,userPassword,userAccessLevel, "
sql = sql & "userDateCreated,userFirstName,userMiddleName,userLastName, "
sql = sql & "lastUpdateDate,lastUpdateBy) "
sql = sql & "VALUES (@u,@p,@lvl,@dateC,@Fname,@MName,@LName,@lud,@lub)"
Dim p As SqlParameter() = New SqlParameter() _
[Code] .....
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Mar 28, 2012
I have been stuck for a long time on this simple but obtuse message "Must Declare the Scalar Variable"
I have a vb.net and SQL code that inserts data into a simple table. It works OK with sample data, but when I try to use a parameter (insertcommand.Parameters.Add("@ID", SqlDbType.Int, 3).Value = 50) it gives me the error. If I replace the @ID with just a number it works.
Eventually .Value = txtid.text if I can get the parameter to work.
Dim connection As New SqlConnection
Dim connectionString As String =
"Data Source=LAPTOP-PCSQLEXPRESS2008;Initial Catalog=golf;" &
[Code]....
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Nov 8, 2009
I am trying to update a table. I am trying to add the value 1 to the cells the user querys, i.e.,
user enters 1124
I want to add 1 to all of the cells the AccntRep = 1124
I am receiving this error
"Additional information: Must declare the scalar variable "@RepNo""
I get the the value the user enters and store it in the variable RepNo
'Query to return tuples of AccntRep
Me.CustomerContactsTableAdapter.Search(Me.CompanyDatabaseDataSet.CustomerContacts, New System.Nullable(Of Double)(CType(RepNoToolStripTextBox.Text, Double)))
'Get value from Query Box
Dim RepNo As String
RepNo = RepNoToolStripTextBox.Text
[Code] .....
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Oct 21, 2011
I have been debugging my code for a while and looking at posts in other forums, but it seems to be that everyone has a different problem than mine and what works for them will not work for me.My dropdown list is supposed to filter a gridview by choosing all the Companies that are associated to a certain product. The solution I have found online is that most people did not have DataKeyNames set in their gridview. I do have this set, but not to CompanyID. It wouldn't make any sense. So I have no idea what I am supposed to do since this is the only answer I have found.
<asp:DropDownList ID="ddlCompany" runat="server" DataSourceID="dsCompanyFilter"
DataTextField="CompanyName" DataValueField="CompanyID" AppendDataBoundItems="true"
AutoPostBack="true">
[code]....
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Jan 9, 2012
Must Declare Scalar Variable @ID?
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May 16, 2012
This seems so basic but I've been struggling to find a solution! I have a web page that take user data from aspx textboxes. Upon hitting a button, the click event submits the responses to a SQL table. Seems easy.I'm using VS10, dev express and VB code. I have established my datacontext class using LinqToSql...In a nutshell, the code is as follows...within the click eventNote that "database" was earlier defined as my datacontext sql connection, "Request" tablee
Dim vname As String = AspxTextbox1.Text
database.executecommand("INSERT INTO [Requests] (ContactName) Values (@vname)")
[code].....
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Apr 6, 2010
im having this prob, when deleting a line from my gridview, this error shows out.Must declare the scalar variable "@productid".Well, i dont know whats wrong with the coding. As i have already declared the productid.
<table style="width:100%;">
<tr>
<td class="style24" colspan="2">
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
[code]....
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Jun 9, 2010
I have this code and I get an error when I try to debug "must declare scalar variable @blobf" can you tell me where is the error here?
[Code]...
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Feb 23, 2011
I tried using the parameter you sugessted in inserting records. Am getting this error must declare the scalar variable "@Account_no", below is my code
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Jun 13, 2012
I am developing a web mapping application intranet from our company. And I am creating add polygon function on the map. I use AspMap, Vb.net and sql server. So when user click a button for add new record therefor out the web form input data attribute. When i run the application I get trouble like this Incorrect syntax near '?' My code is:
Private Sub AddNewShape(ByVal checklist_id As String, ByVal type As String, ByVal shape As AspMap.Shape, ByVal address_area As String, ByVal dmz As String, ByVal customerid As String, ByVal source As String, ByVal area As String, ByVal instalatur As String, ByVal developer As String, ByVal data_received As DateTime, ByVal doc_data As DateTime, ByVal datereport As DateTime, ByVal remark As String)
[Code]...
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Mar 6, 2012
I'm trying to get a connection established for an OLEDB connection, but since I've never used it, I don't really know what I am doing wrong. I managed to get a connection in the web.config file, I think, but now I get the 'must declare scalar variable' error. I thought I declared it, but it. [code]
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Mar 25, 2010
I am getting the error:"Range variable 'sender' hides a variable in an enclosing block or a range variable previously defined in the query expression."for this
Imports System.Data.SqlClient
Imports System.Linq
Public Class Form1
[code]....
I can select any other item from the table without the error. "sender" has the same properties as "receiver" in the SQL table.
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Aug 1, 2010
I have written a sub routine for a Save>Menu option for a MDI Text Editor, see my code below
Private Sub SaveToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles SaveToolStripMenuItem.Click
Dim f As Form2
[Code]....
Now if I take out the ( I get yet another error which states
"Argument not specified for perameter "File" of public sub WriteAllText(File as string, text as string, append as boolean)
All I want is when the user clicks the save menu item the document either saves the changes made to the current document or the save as routine is involked.
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Aug 9, 2011
My coding, I got error: Error Handles clause requires a WithEvents variable defined in the containing type or one of its base types.
For information i am using visual studio 2005. Here i highlight my probleam with in my coding
Public Class Admin
Private Sub TextBox6_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs)
End Sub
[CODE]...
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Apr 22, 2009
I'm working on an ASP.NET application that uses VB. I'm using a SQLReader/SQLCommand/SQLConnection within the VB file to try to pull data values.I was mystified to find out that the reason why the query wasn't returning any values, and someone here showed me how to troubleshoot the query to verify things were being returned, which they weren't.
I talked to a co-worker, and he asked if it would match because I was feeding a string, and the Text field for the database is an nvarchar. How can I declare the variable in VB so that when fed in as a parameter for the query, it can match?The types of data it looks to match are just basic things like "2", "2a", "1a", and so on.If there's no way to just declare the nvarchar, does anyone have a suggestion on how I might workaround that?
Side note: This is a continuation, of sorts, of this question: http://stackoverflow.com/questions/768052/sql-reader-saying-no-values-exist-query-seems-fine
Edit: I set things up like you guys said, but now I'm getting an error that "No mapping exists from object type System.Data.SqlClient.SqlParameter to a known managed provider native type. "I have the parameter as a form-wide variable like this:
Private travelParameter As New SqlParameter("@trip", SqlDbType.NVarChar)
And then inside the main form,
travelQuery.CommandText = "SELECT [StartLoc], [EndLoc],[TravelTime], [AvgSpeed], [Distance] FROM [TravelTimes] WHERE [TripNum] = @trip"
travelQuery.Parameters.AddWithValue("@trip", travelParameter)
[code].....
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Jun 10, 2010
I've done some research and I'm not sure what to look for or what my problem is.My error is: "Must declare the scalar variable '@client_id'"
[Code]...
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Oct 19, 2010
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Click, Open.Click,Name.Click
SelectVid.ShowDialog()
End Sub
[code]....
I keep getting this error:
Error1'.' expected.
Error2Handles clause requires a WithEvents variable defined in the containing type or one of its base types.
Error 2 is also error 3
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Dec 8, 2011
I am auto generating data grid and I am using check box in Data grid View,Now i am invoking check box state changed event but it produces the following error Handles clause requires a With Events variable defined in the containing type or one of its base types.
Here the code
Private Sub PRNT_CheckedChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles PRNT.CheckedChanged
Some Stuff.
End Sub
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Mar 25, 2010
I am in the processing of moving an app from VB to C# but some of the classes I will just be moving to VB dlls to access from the main C# app. In doing this I am trying to get the VB dlls to utilize the main C# class lib. In this C# lib I have an abstract clase called base process, it sets up a background worker and handles all the progress tracking, errors, and even reports an ETA. To use this in a derived class in C# you would just do this...
public class SomeLongProcess : Common.Multithreading.BaseProcess
{
public void start()
[code]....
The problem is that if I do the equivelant in VB I get an error "Handles clause requires a WithEvents variable defined in the containing type of one of its base types". Well I can't do a WithEvents in the base class because it is C# so..
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Nov 22, 2011
i am getting errors on last two event handlers. what did i do wrong?
Error - Handles clause requires a WithEvents variable defined in the containing type or one of its base types.D:Shipping ApplicationShipping ApplicationForm1.vb75136Shipping Application
Error - 'PrintDocument1' is not declared. It may be inaccessible due to its protection level.D:Shipping ApplicationShipping ApplicationForm1.vb1119Shipping Application
[code]....
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Feb 26, 2012
I used the following statement for a parameter.[code]...
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May 11, 2009
Just upgraded a VS 2005 ASP.NET 2.0 website to VS 2008 ASP.NET 3.5. There was an error on the Sub Button_Click. It seemed to be a minor error, the website and the button worked just fine, as usual. What does the error mean?
Protected Sub btnDEreports_Click(ByVal
sender As
[code]...
Error 20 Handles clause requires a WithEvents variable defined in the containing type or one of its base types.
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Sep 2, 2010
Using Vb.net/SQL Server 2000 updating a row via a gridview/sqldatasource
Stored proc:
@ISTag varchar(10),
@PCISTag varchar(10),
[Code]......
I don't understand where else it could be screwing up. I'd love to be able to keep it to a null value if it is one already, I'm just trying to get it to take anything right now and this is where I'm at.
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Apr 14, 2009
Why isnt this working?Sub Macro1()
[Code]...
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Jun 11, 2009
I am using VB2008 and SQL Server to populate a DataGridView from a SELECT statement. The SQL SELECT uses a parameter to access the requested row, but I get an error "Must declare the variable '@actionid'." Where and how do I declare @acionid? Here is my code (the error occurs on the Fill command):
[Code]...
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Apr 28, 2010
I have this code
Text1.Text = Environment.GetFolderPath(Environment.SpecialFolder.CommonApplicationData)
but, when I run it, it produces an error: Compile Error: Variable not defined and it points to the second "Environment" string, the one inside the parenthesis. Is there a reference that I should be enabling?
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Feb 2, 2010
When I attempt to run a program I just finished coding I get the following message: "Error 1 Handles clause requires a WithEvents variable defined in the containing type or one of its base types." Looked it up online and still does not make sense to me. If I need to paste code or anything else let me know and I will do so ASAP.
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Apr 27, 2011
I have a sql select statement with something like:
select...
where column in (@Parameter)
In VB code a set parameter.defaultvalue to "65555,67803", But i get an error "Conversion failed when converting the nvarchar value '65555,67803' to data type int."
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Dec 2, 2009
What's the C# equivalent of
<% dim name %>
so you can use it for web forms in PayPal API integration?
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