Subroutine Exception Query Not Firing
Feb 4, 2011
I have the following subroutines:
Private Sub Exceptionquery()
Dim connection As System.Data.SqlClient.SqlConnection
Dim connectionString As String = "Initial Catalog=mdr;Data Source=xxxxx;uid=xxxxx;password=xxxxx"
Dim _sql As String = "SELECT [Exceptions].Employeenumber,[Exceptions].exceptiondate,
[Code] .....
And when I press the button:
Public Sub exceptionsButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles exceptionsButton.Click
My subroutine Exception query is not being fired. I know that it's probably something simple that I'm overlooking but don't know what it is.
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I am looking to create a 500ms timer that I can use to make some text flash.Setting up the timer is straight forward enough, but I have not found an example of letting the timer create an exception so I do not have to poll it for a timeout.
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The following code populates a second dropdown when the first dropdown changes (i.e. cascading dropdowns). However, the Ajax call isn't firing, and I can't figure out why. I'm not getting any syntax or runtime errors. When in debug mode, the GetPlans action is never being called. The inner alert is never called, but the outer one is. To make matters worse, this same setup is working elsewhere in my app! Here's all the pertinent pieces (let me know if I've left out some important details):
[Code]...
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I have a log table where i need to insert the query which causes errors in the code. I have a common function "WritetoLog".[code]My Question is from the ex how do i take the query which causes error. eg. If the insert command is giving exception i should get like this SQL Query causes error : Query + ex.Message..SQL Query causes error : Insert into temp("1",'Anitha','TeamLeader',) + Incorrect syntax near ')'
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Following is the code I get to achieve a list of Courses:
Dim Result As New List(Of WorkMateLib.CourseNameSpace.CoursesLib.Course)
For Each cat As WorkMateLib.CourseNameSpace.CoursesLib.Category In Courses.CoursesOfferedMAIN.Values
For Each c As WorkMateLib.CourseNameSpace.CoursesLib.Course In cat.Courses.Values
Result.Add(c)
Next
Next
and it is working fine. However I am trying to attempt to do the same with linq and the code is:
Result.AddRange(From k As WorkMateLib.CourseNameSpace.CoursesLib.Category In Courses.CoursesOfferedMAIN.Values Where Not k.CategoryName = "" Select k.Courses.Values.ToList())
[Code]...
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Apr 24, 2011
I debated whether or not to ask in the database section, but decided this was probably more of a VB question, than DB.I'm performing a query on my database and add its value to a DGV. At the moment, I'm just running tests to make sure the base example works so I can expand on it for more advanced tests.[code]It doesn't matter how I add the row, just adding it causes the error. And yes, the AllowUsersToAddRows property of the DGV is set to True, which wouldn't cause this problem anyway, but I decided to be extra careful.
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May 27, 2011
i am trying to develop a simple app to automate binding of data from access db for filling a form in a sequential order vb 2008 express. an error keeps coming up 'expression expected' on an sql query in the code i wrote. the code is shown below:
Private
Sub STARTButton_Click(ByVal
sender As System.Object,
ByVal e
[code]....
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Jun 11, 2011
i am having an sql query in catch block. the code is: Dim str_exception As String = ex.Message Dim sql5 As String = "insert into table_data(type,description) values
('ERROR'," + str_exception + ")" Dim cmd_sql5 As New SqlCommand(sql5, connection)cmd_sql5.ExecuteScalar() it throws an exception at cmd_sql5.ExecuteScalar().
the exception is - incorrect syntax near 'records'. i tried adding single quotes like'incorrect syntax near 'records' .' .but still it is giving me the same error. I think it is because of the quotes near records. this exception is thrown somewhere else in the code and then it comes to cath block. i want to save the exception in the database.
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May 3, 2011
I have created a query method for my tableAdapter in the dataset designer. I typed the command text manually, but tested it in the query builder after I got a Constraint Exception when debugging. When running in the query builder via 'Execute Query' I get exactly the results I expect. When running the application I get this exception: "Failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints." I tried temporarily setting my dataset's EnforceConstraints property to FALSE but still get the same exception. I can't understand why the Query Builder would return the correct datatable but running the app would not. Is this a bug?
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It is possible to catch an exception and throw a new exception which wraps the first exception as an inner exception: [URL] Also, if I call a function and it throws a certain error, but I catch it, will the calling code's catch handler execute? If so, and it is of a higher exception type, is this not wrapping the exception? eg I can throw exception ex of type IndexOutOfRange, log it but rethrow, catch a higher up exception and do something, or I can throw a new exception and wrap an inner exception like:
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Jun 22, 2011
've got a function that takes two parameters (a delegate and an integer) and then creates a LINQ MethodCallExpression, which it uses to gets the results:
Public Delegate Function CompareTwoIntegerFunction(ByVal i1 As Integer, ByVal i2 As Integer) As Boolean
Public Function Test(ByVal pFunc As CompareTwoIntegerFunction, ByVal i1 As Integer, ByVal
[code].....
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Aug 19, 2010
Here is the code:
Function getData(ByVal id As String)
Dim reader As SqlClient.SqlDataReader
Dim statement As String
[code].....
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May 9, 2010
I am trying to get the hang of this stupid VB.net, but it won't even let me create a subroutine or function, it use to be in the tools menu in VB6. I have spent £50 on 2 books that rabbit on about objects, property's classes etc: but tell me nothing of what I want/need to know, what a waste of money.
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Dec 4, 2011
Private Sub btnCalculate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCalculate.Click
Dim d As Integer
Dim price(20) As Double ' Adjusted close price
[code]....
What is the for ... next loops in the second subroutine doing? What is the sim() array meaning?
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Jul 23, 2009
Does anyone know how to get x value form another subroutine?
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May 1, 2010
I have a form that is bound to a table of data. I have a typical binding navigator. When I go to a different record such as next, previous, first or last I need a subroutine named "LayoutAdjust()" to execute "after" the new next record data is loaded on form. I tried calling the subroutine in the "BindingNavigatorMoveNextItem_Click" action but it executed the procedure before the next record data was loaded
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Feb 7, 2010
I have an old program written in VB6. I upgraded the program with VB 2008. The updated program works fine except when the program tries to transfer an array to another subroutine. The old VB6 program sends arr(0) as an argument to the subroutine, the address of arr(0) is passed to the subroutine. The array arr() address is the first of a block of consequent addresses one by one, arr(1), arr(2), etc.
Now when running VBnet, the address of arr(0) is not the first of all consequent arr(1), arr(2), etc. It is an isolated number, just like if arr(0) were a variable instead of an array. The addresses of arr(1), arr(2), etc do not exist in the subroutine. [Code]
The variable of y1 passes to the subroutine oK, whilst arr(0) passes also like y1 into an isolated address. So VBnet interprets arr(0) like a variable rather than the first value of a long list. I haven't been able to find out why the above sample does not work. I got stuck in my programming effort, as I cannot proceed to to further development. how the code should be modified to enable the whole array information passing through the subroutine.
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Jun 27, 2011
Problem is, I need to call a VB.NET function from javascript, no two ways around it. This is a bit harder to find.BTW -- Web/Page methods won't work. I have to be able to reference a listbox and it's selected items when the VB code-behind fires.
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Jun 21, 2010
what I need to do is to call/run/execute a subroutine using a varaible name from a subroutine.
Public Sub Main(ByVal subName as String)
Call subName ' subName may be contain the value AAA or BBB
End Sub
[code]....
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I am trying to make a counter go up by 1 every time a subroutine is called But i dont know how to word it. Here is the code. [code]...
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I'm writing a class library and I need to be able to shut down the main code in certain cases.
I know I could raise an event and listen for it in the form called by application.run but I would like to find a way around it.I wouldn't be opposed to try to throw an exception that if unhandled would close the application... but would prefer to come up with a more elegant soln.
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Feb 4, 2011
I am trying to execute the "Data()" subroutine at startup. This did not work:
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Call Data()
End Sub
Is there a way to call the subroutine at the begining of debug?
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I'm following this tutorial [URL] and it says to Open form1_Load() subroutine. What does this mean and how do I do so? It is really important.
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When you access a subroutine by one or more other subroutines each time the variables are zeroed like 'n' below. How can I keep n saved so main can increment n each time.
Public Class Form1 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code]....
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Jan 19, 2011
have a look at my VB/ASP code and tell me if you can see what's wrong (I highlighted the important segments in red):
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<%@Page Explicit="true" Language="VB" Debug="true"
[Code].....
Basically, I'm trying to get the Page_Load subroutine to execute on the page load, but it doesn't seem to be called. I'm assuming that because I set my feedback label to "feedback" in the Page_Load subroutine, I should see it displayed on the page saying "feedback" on first loading the page and every time I refresh. But this doesn't happen. I'm lead to conclude that the Page_Load subroutine is not being called on the page load.
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Jan 19, 2011
VB/ASP code and tell me if you can see what's wrong (I have bolded the important segments):
[Code]...
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How do I pass a list as a parameter to a subroutine? I don't know how to specify the variable type in the receiving routine.[code]...
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May 12, 2009
I have two subroutines that consists of two datasets. I am not sure how to pass some data in first dataset named dsGoodStudent to second dataset named dsBestClass.
Private Sub Classification()
Dim SqlSelect As String
SqlSelect = "Select Name, Age, grade from tblStudent where grade = 'A'"
[Code]......
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Dec 15, 2011
So I created a subroutine to do some work but now i have no idea how to pass the results on to another stage in the process.
Private Sub CheckDates() Handles MyBase.Load
Dim Duedate As Date = INFDateLabel1.Text
Dim Duedate2 As Date = INFDateLabel2.Text
[Code].....
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Dec 15, 2009
Having a time trying to figure out mapping a key to a sub. When ever the window is the top window active window I was wanting to map the key ' z ' to run my command. So when the ' z ' button is pressed the motor command is run. Then will map the ' x ' key to go the other direction.[code]....
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