How do I pass a variable to a threaded procedure? The clickedItem.Tag contains a username as a string which I want to pass to Public Sub GetLockoutInfo(ByVal UserID As String) but the AddressOf GetLockoutInfo line doesn't allow for a parameter to be passed to the procedure.
Private Sub CallGetLockoutStatus(ByVal sender As Object, ByVal e As System.EventArgs)
Dim SearchUserDetails As New NiRDs_Functions_OC
[Code].....
Im a student doing an assignment, how do i pass the value from a sub procedure to a function procedure....i want to pass the value from decSubtotal to a function procedure named CalculateDiscount; check out my code--
[Code]...
I have an ArrayList that is set to Friend. Once I click my button "abc" is added to the ArrayList and then the form MsgBoxes out the Count of 1 (Correct).When I use Threadpool to count the number of objects within the ArrayList it always returns 0.
Example:
Imports System.Threading
Public Class Form1
Friend Alphabet As New ArrayList
[code]....
I am obviously getting some sort of cross-thread issue here but have no idea how to correct this. I usually just setup single threads so this is my first time playing with ThreadPool & already lost at step 1!
I have an application with 4 threads. (GUI, Controller, Producer, Consumer) The GUI is self-explanatory. The controller starts the producer and consumer threads after some intial setup. The producer creates items and places them in a free slot in a "ring buffer". The consumer takes items from the "ring buffer" and writes them to disk. The producer creates items at a much higher rate than the consumer. The consumer is IO heavy and IO bound. Currently I am checking a variable in each ring buffer slot to determine if it can be written to.
if Slot.Free then
Write Slot.Data To Disk
end if
I am not using lock/synclock instead I'm just reading / writing the value of the slot's "free" variable. I don't believe that is correct even though it is a volatile read/write. Is there a better method to read/write this variable? The variable is of type "integer" and is either 0 or 1.
Using Visual Basic 2008 Express. I need to pass a variable to another form. Or else make the variable visible to both forms.
View 4 RepliesThis code calls a store procedure that takes input parameters. With this code I'm confused as to how the parameters are passed to the stored procedure. The parameters are first stored into 2 string variables (strCategoryName & strOrderYear). They are then copied/moved to an sql parameter prm.value. But the stored is stored in an sqlcommand (cmd ). I can't understand how the stored procedures knows what the parameter values are.
Private Sub btnWithParameters2_Click(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles btnWithParameters2.Click
Dim cnn As SqlClient.SqlConnection = _
New SqlClient.SqlConnection("Data Source=SKYROCKET;" & _
"Initial Catalog=Northwind;Integrated Security=SSPI")
[Code] ......
I want to create a Procedure that its parameter is also a procedure. I created some procedures to be used as parameters below:
Private Sub Jump(xStr as string)
Msgbox xStr & " is jumping."
End Sub
[code]....
this procedure should call the procedure above:
Private Sub ExecuteProcedure(?, StringParameter) '- i do not know what to put in there
? ' - name of the procedure with parameter
End Sub
usage:
ExecuteProcedure(Jump, "StringName")
ExecuteProcedure(Run, "StringName")
I see this asked many times on hereI'm copying this question that I found on here.Is there any way to pass a null value (I mean a value that the sql will interpret as null) to a stored procedure when using:tableAdapter.Fill(dataSet.table_name, param1 (as string),param2 (as string) etc...Which is the most painless way to do this(assuming that the sp stays inside the database!!)
View 4 Repliesthis is my coding when i run this coding for display the content in textboxes from the database by click event in datagrid. "Procedure or Function 'sp_developer_display' expects parameter '@developerid', which was not supplied."this error will display my sp in sql express is ALTER PROCEDURE dbo.sp_developer_display(
[Code]...
Im trying to pass parameters to a stored procedure in SQL but for some reason its storing the parameter(s) in the columns....
My code
Public Function AddRec(ByVal textbox1 As String, ByVal textbox2 As String, ByVal textbox3 As String, ByRef Creation As Date)
'Adding a new Record to SQL
Dim Conn As New SqlConnection
[code]....
the addwithvalue all the textbox`s have a value in which i would expect but for some reason when i go to db in SQL it actually shows the @Username,@Account,@Password,@DatCreated not the values im passing in please see the attached image.
I have 10 panels on a form and I was wondering if there is a more efficient way to loop through them to pass the data to my procedure instead of writing out each one the way I am doing
' sample shows only 3 but there are 10
For i As Integer = 1 To 3
Select Case i
Case 1
[Code]....
I am building a three tierd app, and therefore have all my data access methods in a class by itself.This class only calls stored procedures, basically, I need to pass in the following:
1) stored procedure name as string
2) parameters as IDataParameter() -- an array of parameters
3) other fields ( not important to this discussion)
If I use a GridView on my web form and choose an ObjectDataSourceObjectDataSource, and then choose my business object and method, since the method is a call to a stored procedure with a parameter array, I don't know how to pass it values in the IDataParameter format.The Method Signature listed on the wizard is "RunSP(String spname, IDataParameter[] params), returns SqlDataReader" which basically is calling a method called RunSP with two parameters, of which the second parameter is a parameter array for a stored proc.
My application is asp.net with vb. In my page I have a textbox for passing date. If I didn't enter date and on clicking submit, I have to pass null value to the stored procedure. I tried following codes such as DBNull.Value and DateTime.MinValue. In that case instead of null ,"#12:00:00#" is passing. I have to pass Null.
View 3 RepliesI have created a database with on table that is very similar in setup to ProductCostHistory from the Adventureworks database. Using the adventureworks database as an example, when the procedure is given the parameters of date and productID it will change the EndDate of the currently active cost to the date value and insert a new record with productID as the ProductID and Date as the StartDate, leaving EndDate null for the newly inserted record. I am looking for a way to create a simple form with two textboxes and a button. textbox1 accepts the ProductID parameter and textbox2 accepts the Date value. when the button is pressed, the stored procedure is executed and the table is updated. This seems pretty simple and I am very familiar with tieing stored procedures to a table in a dataset when each prcedure handles only a single simple action (either, SELECT, INSERT, UPDATE, or DELETE but not a single procedure that combines UPDATE and INSERT as the procedure described above does). I've done some reading and played with this on myown but can not find the simplest straightforward way of accomplishing this seemingly simple task.
View 2 RepliesI have an asp.net page that contains a javascript function. I am using a vb.net code behind to run a stored procedure against the database to pull back address information. Results can be 1 or more rows. I need to pass the results to the javascript for processing. My code is as follows:
VB.NET
Partial Class _Default
Inherits System.Web.UI.Page
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
[Code].....
How can I pass stored procedure name dynamically to Linq-to-SQL, vb.net and get the result into a datatable.
View 2 RepliesI have a form that I'm running a stored procedure in and I'd like to pass the results to a datagridview and then offer the user the ability to export those results to a flat text file.
View 1 RepliesI have a table that I need to insert a set of records into based on user input. IE: Selection from a list of items to choose from. For this example, let's just say it's a collection of int's.
Not a lot of good examples on the internet. There's only one related question here on SO, but it lends no answers either (both answers are dead ends).
How do you setup the call into the Package from .NET? How do you setup the Package Procedure or Function to receive the collection? How do you process the collection once inside of the Procedure or Function?
Trying to convert XML file to string and pass to stored procedure.
Dim fs As FileStream = File.Open(fileUpload1.PostedFile.FileName, FileMode.Open, FileAccess.Read)
Dim buffer(fs.Length) As Byte
fs.Read(buffer, 0, fs.Length - 1)
txtRawXML.Text = System.Text.ASCIIEncoding.ASCII.GetString(buffer)
When I tried to upload file I got error. The error description is 'A name contained an invalid character.'. Could not find prepared statement with handle 0. Could not find prepared statement with handle 0. sp_xml_removedocument: The value supplied for parameter number 1 is invalid. The statement has been terminated.
how to Pass datatable as a parameter to a SQL Server stored procedure
View 3 RepliesI want to passing field in database to list view with stored procedure.[code]...
View 3 RepliesI have an application that I'm building which pulls dates from a database. The start value is stored as payPeriodStart date and I add 7 days to get the end date. What I need to know is, is it possible to store those values and pass them to a Stored Procedure? Currently my stored procedures have "static" dates in them ie[code]...
View 14 RepliesI have a stored procedure which updates a database using the parameters I supply but I'm having trouble passing a NULL to the stored procedure
The field I need to make NULL is a DateTime field
DB.Parameters.AddWithValue("@date", NULL)
This gives me the error 'NULL' is not declared. 'Null' constant is no longer supported; use 'System.DBNull' instead
[Code]...
I am developing a complicated search form, and I would like to know best method of passing search criteria to stored procedures.Possible options that I know are, 1) Create sql statements in Visual Basic and send statements to SP as strings to execute2) Pass search fields to stored procedure and build command in SP (Stored procedure) in database?
View 9 RepliesI have two sub procedures. Both are triggered by button clicks. The first one contains the SQL connect and the Insert statement strings. The second button I just want to show a message box containing the strings. Is there a way to use a variable from the first sub procedure?[code]
View 3 RepliesI have a task to create a web service to receive client-side app's http request(with rpc={json data} in the end), deserilize it and put he parameter in stored Procedure in order to retrive data from sql server. the procedure query and client-side's app are already there and the return data to client-side app is JSON too
View 1 RepliesI can create event prodcedures for form objects, but is there a way to create an event that triggers when a certain variable equals a certain value?
View 3 Repliespassing a variable to a sub procedure by reference. Not sure I understand how it works. Here is the code.
Private Sub bntcompute_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles bntcompute.Click
Dim x, y As Double
getnumbers(x, y)
displaysum(x, y)
[code]....
Is the newly modified variable actually being Passed back? and If so where in the statement is it passed back. is it being passed back to the call getnumbers or is it passed back to the statement displaysum?
ok to start i know very little about VB6 but i am very good in true basic lol (stupid school teaching the wrong language -_-) anyway im just asking you to make the answer as clear as possible because i don't know very much. heres the problem . ok in the above example i have a button that (for my example) can be used to build a house (lol) i then have a variable in the button sub called money which will have 150 subtracted from it when the button is clicked my problem is it say variable not defined when using this button ... i have declared the variable in a module and in form load along with my other 50 or so variables. my question is how do i pass the variable into this sub and then send the new value back into form load so it can be sent into another sub for more calculations.
View 14 RepliesI currently have the following funcion:
Public Sub GetUserAmount(ByVal ConnectionString As String)
Dim command1Text As String = "SELECT Wager FROM Donations1 WHERE DonationId = (SELECTCOUNT (BidCountHistory) FROM BidCountHistory)"
[Code]......