What Is The Syntax For Initializing A SQLParameter Array
Sep 4, 2011It has been way to long since I have been involved in VB so I need some help here. I have the following in my C# code
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It has been way to long since I have been involved in VB so I need some help here. I have the following in my C# code
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I wrote this - very simple - function, and then wondered does VB have some pre-built functionality to do this, but couldn't find anything specific.
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Here are the facts: Consider the following program. Sub Main()
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Compiling the program in Visual Basic Express produces no errors. However, if the program is imported into the Excel Developer environment; I get the following error: Expected: end of statement with the equal sign highlighted. A side comment: About eight years ago, I wrote a Visual Basic simulation program to study financial trends. I found that version of Visual Basic user frendly! I find the 2010 version very difficult for doing simular projects.
I'm trying to return an array of strings from a function, and got surprised by an error.
I would have expected this to work, but it produces an error:
Public Function TestError() As String()
Return {"foo", "bar"}
End Function
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I guess I'm unclear on the meaning of the {}'s - is there a way to implicitly return a string array without explicitly creating & initializing it?
My first try was to init performance counters in an array, which didnt work. Then I read up on performance counters and from that reading, the constructors are such that performance counters cannot be put in arrays. What does one do for multiprocessing?
View 6 RepliesThe following code works just fine:
Dim wksSheetNames(0 To xlsWB.Worksheets.Count - 1, 0 To 1) As String
Dim i As Integer = 0
For Each Wks In xlsWB.Worksheets
Wks.Activate()
wksSheetNames(i, 0) = xlsApp.ActiveSheet.codename
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What is the best vb.net based search method that would permit me to search for i.e. "Sheet2" and be able to obtain "Cats"? I attempted to ascertain the index number of "Sheet1" with:
Dim SheetArrIndex As Integer = Array.IndexOf(wksSheetNames, "Sheet1")
Then obtain the value "Cats"
wksSheetNames(SheetArrIndex, 1)
But I received an error message:
Code Line ->>>> "Dim SheetArrIndex As Integer = Array.IndexOf(wksSheetNames, "Sheet1")"
Error msg ->>>> "Only single dimension arrays are supported here.:
Obviously I do not know how to Search and Return the results of a 2D array.
The following syntax is just fine ReadOnly
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In one of our application the parameters passed to a stored procedure in this way
Dim parm As New SqlParameter("searchText", SqlDbType.VarChar)
parm.Direction = ParameterDirection.Input
parm.Size = 50
parm.Value="test"
cmd.Parameters.Add(parm)
and the procedure contains a parameter as @searchText
ie the parameter name passed from the code is searchText and that in the stored procedure is @searchText .
But it is working properly, i am always getting the required results.
So my question is like so there is no need to specify @ before the parameter? Whether it will append @
The following code works fine in VBA Goal of the code is to find (select) all cells in an Excel worksheet where the backgrounf cell color is Yellow (6) or Rose (38)
Sub SelectColorsViaArray()
Dim e As Variant
Dim r As Range
Dim x As Range
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3) With the above, I still do not understand how to integrate the Variant and Array differences from VB6 to VB.Net. I know what to do with all other like: Application.FindFormat.Interior.ColorIndex ... etc.
with the code below, I'm trying to send an integer array from a background thread to the Main Form which contains a User Draw Control. I currently get the error:"Invoke or BeginInvoke cannot be called on a control until the window handle has been created."
Public Class Form1 Me.TabPage.Controls.Add(Me.DrawGraph) 'designer.vb
Public InjectIntegerArrayDelegate As InjectIntegerArray
Delegate Sub InjectIntegerArray(intarray As Integer())
InjectIntegerArrayDelegate = New InjectIntegerArray(AddressOf InjectIntegerArrayMethod)
public Sub InjectIntegerArrayMethod(SensorData As Integer())
DrawGraph.Int_Clutter_In = SensorData
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I know to define integer type sqlparameter but I do not know the decimal type sqlparameter for the precession.
I am giving a sample example.
//Code
Dim sqlparameters(2) as sqlparameter
sqlparameters(0)=new sqlparameter ("@RMID", SqlDbtype.integer,7)
but in case of decimal I am giving like this
sqlparameters(1)=new sqlparameter ("@RMID", SqlDbtype.decimal,7,2)
which is wrong
I have a class, LogRequest, which contains parameters (members) for an object.This object is turned to an sql query using another class, DataAccess.And lastly, I have the class Search which run the sql query.[code]...
View 2 RepliesI have a problem with something I have done many times but this time it just doesn't work. This is what I am trying to do (in Visual Studio 2003 and VB.NET). Earlier in the [Code]
View 1 RepliesI have a web application running written on ASP .Net.We have a class accessing the back end written in VB .net which has shared functions for DB interactions.The above error comes up when ever two users are in the same page... tying to do the same thing.Couldn't find a reason why this would happen.The scope of the SQL command is limited and parameters are cleared at the end.
View 2 RepliesI am experiementing with table updates and the code below gives me the following error message: "The variable named "@Processed" has already been declared... at the following code line: clsWTAdapter.Update("clsWTDataTable"). I fear that all of my code is a general mess, and I am sure there is a much better way to go about it.
Dim clsCmd As New SqlClient.SqlCommand
Dim clsCMAdapter = New SqlClient.SqlDataAdapter("SELECT * FROM CatalogMaster WHERE Processed <>-1", clsCnn)
Dim clsCMDataTable = New DataTable("CatalogMaster")
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I can't figure out the syntax for searching an array of stored words for a string matching an input string. I understand the pseudocode of it, but I'm tripping up over what variables I need to put where, and how they should be formatted. More than happy to provide more details should anyone request them.
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I'm a beginner in VB.NET programming.. Please help me on how to pass SQLParameters in the below function..
This my code:
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I keep getting a strange error message when I try to call my stored procedure. Possibly I have a syntax error? Not my store procedure does not return a value. Also the error message is included at the end of this post.
--VB .NET Code
Dim connString As String = ConfigurationManager.ConnectionStrings("EMRConnectionString").ConnectionString
Dim conn As New SqlConnection(connString)
' Create a new sql command, and reference the stored procedure by name
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I'm changing old, vulnerable SqlCommands with SqlParameters but get a SqlException: System.Data.SqlClient.SqlException {"Conversion failed when converting datetime from character string."}
on sqlCommand.ExecuteScalar:
Dim sqlString As String = _
"SELECT TOP 1 " & _
"fiSL " & _
"FROM " & _
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I created stored procedure in sql server 2000 that's it
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In vb.net 2005 how to pass date and time of dateandtimepicker without to make sqlparameter
I'd like to make it like vb6
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I tried to make the same way in vb.net with different ways but i failed to do it.
I am developing a VB.NET application with SQL Server 2008 and I get the above error when I try to run this ASPX file. What is the cause?
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In newer editions of .Net I can pass -1 for the output size for VarChar(Max) columns, but in Visual Studio 2003 I get the following System.ArgumentException: Invalid parameter Size value '-1'. The value must be greater than or equal to 0. What should I specify as the size for a VarChar(Max) column in Visual Studio 2003?
View 1 RepliesI am writing a WPF application in VB 2008, and need to establish a connection to another system to get pertinent information and if not exit gracefully without displaying the form. I thought I would be able to do this in the Application classwithin Application_Startup and set some custom properties. However, it doesn't appear I can expose these properties outside the Application class without re-instantiation it, which is bad thing. Even variables set up as Friend don't appear to work either.
View 2 RepliesWhy if I run the following code does the argument in the Add method pass {"foo2", "bar2"} in both method calls?
Dim myList As New List(Of String)
myList.AddRange(New String() {"foo", "bar"})
Add(New RandomClass("blah", myList ))
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i have an application which i want the user to have access to forms base on their access right. I have a public module that that take care of the uers access right, but when I call this module from the form load event which return true(user has access to the form) then form load continue OR false(user dont hav access to the form) exit sub to discontue form load. but this is not stoping the form from loading.
'Check for user's permission
pubFormID = 107
'Call procedure
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what the syntax is for initializing a list of a class, eg:-
Public class myparams
private myno as integer
private name as string
end class
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I am working with a third-party COM component (i.e. do not have its code). The method in question has the following outline:
HRESULT GetTableInfo(
[in] BSTR bstrTableName,
[in,out] SAFEARRAY(BSTR) bstrColumnTitles,
[in,out] SAFEARRAY(long) lColumnPos );
I have tried to pass a ref to a fixed-size array ((Array)string[6]) and to a List.ToArray(), but it keeps crashing on me. E.g.
Array arr1 = (Array) new string[500];
Array arr2 = (Array) new int[500];
table.GetTableInfo(filename, ref arr1, ref arr2);
To be more specific: I already tried any value for the size (the correct one should be 44). Tried the same for the capacity of a List<>, but that didn't help either. I also tried different types, but it does not accept any other than int.
I don't know why it keeps crashing on me with a general error of that COM component (basically indicating that something is wrong, yet not saying what exactly), since I can confirm that the following VB code works:
Dim TitleList() As String
Dim PositionList() As Long
Call objTable.GetTableInfo(txTableFile.Text, TitleList, PositionList)
I use the splash screen of the vb.net found on windows form.Is there a way that i could put an initializing while my splash screen is running?like other programs do instead of progress bar.
View 16 RepliesI'm using a structure to hold three arrays:
structure myStruct
dim arrayOne() as char
dim arrayTwo() as char
dim arrayThree() as char
end structure
But how do I go about setting them a value, I've got my instance of myStruct
dim aStruct as new myStruct()
If I try redim, it just tells me it can't change the dimensions of an array, so how do I got about initializing the arrays with values?
I have a form which i want to prevent from loading during the form initializition. which of the form event handles form initialization in VB.NET.
View 8 Replies