If Statement Not Working?
Dec 27, 2010why can't I do
If ( textbox1 1= " ")
endif
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SQL Statement :: Nearly Working Just Cant Get Form Values In Statement?
Aug 4, 2010I cant get this SQL statement to insert any of the values in the form to add to the database
sql
sql = "INSERT INTO prevresults (ExamDate, ExamTime, CorrectAnswers, PassPercentage) VALUES (date.now, time.now, rightanswers, percentage.text)"
[code]....
Get A IF Statement Working?
Jan 29, 2010Trying to get a IF statement working.
strUSER = "Test1"
This works.... The exception does not fire
ElseIf Not strUSER Like "Test1" Then
Throw New ArgumentException("Error")
End If
This does not.....The exception does fire
strUSER = "Test1"
ElseIf Not strUSER Like "Test2" Or Not strUSER Like "Test1" Then
Throw New ArgumentException("Error")
End If
I need the second one to work as well. The exception should not fire.Why?
IF Then Statement Not Working Correctly Where Value Is Nothing
Feb 27, 2012MVC3 VB.NET application. I have the below section of code in a function. This code is supposed to only fire if the handout1 is not nothing. But for some reason it is going into the then block when the handout1 is nothing in the database... I have tried a hundred different ways of checking but it is still trying to run that line of code even when there is nothing to assign to it....
[Code]...
INSERT Statement Is Not Working
Jan 23, 2010I am creating a feature in my application that will allow a logged in user to add additional users to be logged in. The usernames and passwords are kept in a single database created in Access 2007. The table has 3 columns: ID, UserName, and Password. I am trying to insert user-inputted data through a TableAdapter function in a DataSet. It has worked once but for some reason it stopped working, and I can't figure out why.
Calling the TableAdapter function...
Me.UsersTableAdapter1.AddUser(Me.txtID.Text, Me.txtUsername.Text, Me.txtPassword.Text)
[Code].....
Visual Studio isn't throwing any errors my way or anything so I am not sure what's going on here. The fact that the code worked once but isn't working now is also confusing, and I don't recall making any changes related to this feature since it worked that one time.
Parameterizing A NOT IN Statement Not Working
May 5, 2010Okay, so I have the following code.
[Code]...
Conversion failed when converting the varchar value '17, 18' to data type int. Which is the same error message I get when I run my application. So I guess somewhere along the line, when passing those values in the parameterized query, they are being passed as string literals with quotes around them, instead of integer values separated by commas. How do I add the string that I obtain as the argument for this subprocedure into my sql query's parameter such that they do not get passed as string literals with quotation marks around them?
VS 2010 If Statement Not Working?
Jun 27, 2011I have form1 and form2. On form 2 i have 2 combo boxes where the user is asked to make selections. once back on form1 i try to use those selections as part of an if statement but although i should be triggring them it does not. I cannot figure this out. I have set up test variables and msgboxes along the way to test this.
The code excecutes. I have double checked the variables on form 2. They just do not trigger a response that will enter the if statements even though it looks like they should. I have double checked that test1 and test 2 are grabbing the variables from form 2
test1 is "Male"
test2 is "10 - 19"
When the code excecutes i never get to the msgbox("Age") line of code. I have also tried taking the spaces out of the strings with no luck as well.
[Code]...
Working VBS2008, The Use Of The DIM Statement?
Mar 25, 2009I made a smallprogramm. Each Q is at the top of the Form.vb right under the Public Class.Each A is declared in the Private Sub where the given A is matched with the stored Q. Each A looks like this: DIM Answer1 As String = "Answer" and so on. I would like to use just one DIM statement for all the answers.
View 1 RepliesVS 2005 Working With An OleDbCommand Statement?
Jan 15, 2010I need some help working with an OleDbCommand Statement existing statement
OleDb.OleDbCommand("Select *, (([AddressDisplay])&', '&([City])) AS Address
The City is stored in database with the city name and an additional abbreviation added. I need to get rid of the abbreviation, if possible.I DONT control the database its from a 3rd party.
Example: Houston[HST] I need to remove the [HST]
Can this be done? Either in the command statement of perhaps in the displaymember of the combobox that reads the database?
DB/Reporting :: INSERT INTO Statement Working But Not Saving?
May 19, 2012I'm running into a slight problem with an SQL INSERT INTO statement. I've tried setting this up first as a command statement and now as a stored procedure. When the process runs it's not signaling any errors and it appears that it's working properly. However when I check the database nothing new has been added. I have the statement within a try catch and it's not catching any errors. I've gone so far as to delete the table and recreate it, still nothing. I should also point out that this entire statement was essentially a copy & paste from another program that's working perfectly.
vb.net code below
Code:
Try
Dim cmd As New SqlCommand
cmd.Connection = con
[code]....
Update Statement Is Not Working On Database Software With .mdb
Mar 11, 2010my simple update statement is not working on my database software with .mdbCompanyDa.Update(CompanyDs, "DisplaycenterData")it works but only in cache, when i restart my application the record is not updated.i solved my problem with some informal steps. i m attaching vb projects zip file, plz open coding for update button and Help me with simple coding.yes one important thing i need help and suggestion for is that in that project and forms are working nice, but with form i m facing problems, specially i cant update new added data/record, it returns error enven i follwed very same coding patterns and formate as i used in other forms in this project, i tried again and again but faild to solve the problem, i also changed table name and fields in database table but it still not working, and coding of other forms is working nice and 's update coding is not working.(update coding for company and book entry form is working and it is not working with purchase5 form, plz help to solve the problem)plz help me with simple coding and removing above mentioned error.to move between all three forms plz click related button at bottom of each form.
View 4 RepliesDB/Reporting :: Error In Inserting - Not Working But Correct Statement
Dec 17, 2008I keep getting the following error when inserting in to my Access DB using VB.
THe code I use is:
Code:
Dim code As String = "INSERT INTO tblUser(Username, Password, Forename, Surname) VALUES('" + txtrEmail.Text.Trim + "','" + "dfd" + "','" + txtrForename.Value.Trim + "','" + txtrSurname.Value.Trim + "');"
[Code].....
I got the sql code to write in a text box and executed i manually in to Access DB and it works perfectly.
Sql - SELECT INTO Statement Not Working, But Works When Ran Directly In Access
Jun 15, 2011I am converting old VB6 code to VB.NET with ADO.NET (OleDB). This is my query that will create a blank table when ran in VB.NET, but then works when ran directly in Access. This code presumably also works in VB6, as I am using the same SQL:
SELECT qryAsOf.name, qryAsOf.type, 0 as opt, 0 as swap
INTO qryCon
FROM qryAsOf
LEFT JOIN qryLinked on qryAsOf.c = qryLinked.lc
I feel like this has something to do with the left join and select into being together, but like I said it is only VB that has an issue with it, Access handles it perfectly.Without the INTO line, this query returns all 600+ rows.
This DOES NOT WORK:
cm.CommandText = "CREATE TABLE qryCon (etc...)"
cm.ExecuteNonQuery()
cm.CommandText = "INSERT INTO qryCon SELECT ..." '(rest of query above without INTO line)
cm.ExecuteNonQuery
This DOES WORK:
cm.CommandText = "CREATE PROC qryCon AS SELECT ..." '(same select as above without INTO, again)
cm.ExecuteNonQuery
The CREATE PROC that does work is fine, except I need to insert data into it later, so I get errors about how I need an updatable table. I really want the end qryCon to be a table, but I can't seem to get that to work :(
*However, when I do something like this (using the stored proc (renamed) above which, if viewed in Access, is full of data)
cm.CommandText = "SELECT * FROM storedProc"
dr = cm.ExecuteReader
[code]....
This DOES NOT WORK! By the way, I removed the concatenation in the query for readability. It is correct in the actual project.
.net - If Case Statement Throws Exception "case Else" Start Working?
Jun 19, 2012It looks like impossible but...
Try
Select Case command
Case 1
smth()
Case 2
[code]....
Firstly Case 2 runs. Throws exception. And right after this debugger shows that next processed statement is Case Else. Only after Case Else throws own exception Catch block start working. I've never seen this trick. Why can this happened?I'm sure the block is entered once (not like this:first enter hit Case 2 and second hit Case Else).
Update:-To Matt Wilko. Thank you for answering. I've switch to Strict On in Options of VS2010 but nothing has changed. Command is variable, not function. Watch tool shows that on each step Command is the same ( Command = 2).
Fixed. Yeeaaaahhh. I simplefy code to
Try
Select Case 2
Case 2
[code]....
and change project to Console app. This works as I mention. The fix was in Release mode. I was debugging in Release mode. When I switch to Debug mode everything goes as it should.
SQL Statement Doesn't Work - INSERT Statement Works Fine In The Form Load But Not In The Button Click Event?
Oct 14, 2009See
Public Class Form1
Dim sql As String
Dim conn As New OleDb.OleDbConnection
Dim da As New OleDb.OleDbDataAdapter
[CODE]...
The problem, The INSERT statement works fine in the form load but not in the button click event?
If <expression> Then <statement [:statement]> Else [statements] In Concrete Form?
Jan 1, 2010I was convinced that If <expression> Then <statement [:statement]> Else [statements] in concrete form of If a = b Then SayHello() Else SayBye() End has sense. I read article on msdn on If-then-else, but I forgot why I was reading, so I concluded, that snippet above means this
If a = b Then HelloIsSaid : IsNotEnded Else ByeIsSaid : IsEnded But I have tested it now, and I see, that Else without statement is nothing more than decoration. It would be pretty good if it had function I described. Do you think its good request? Or do you know any circumstance where this Else has some function?
Making A Next Statement Into A Loop Statement In Visual Basic?
Jun 8, 2009y friend and I are re-learning Visual Basic, and we are stumped on this bit of code.
For intAsterisks As Integer = 0 To intLine - 1
lblAsterisks.Text = lblAsterisks.Text + "*"
Next
Sql - Perform An Inline Select Statement In A LINQ Statement?
Jun 24, 2011I have the following SQL:
[Code]...
I want to put it (the select count statement) in this LINQ statement so I can get the sales count in my linq statement: Dim TheLeads = (From L In DB.Leads Where L.IsDeleted = False Select L).ToList() Is this possible to do in LINQ?
Change The Exit Statement To A Continue Statement?
Feb 23, 2009add an if statement and an exit statement to my do loop that exits when my future value (FV) is greater than 1000, then to change the exit statement to a continue statement so my loop will continue even though my fv is greater then 1000, point is to get this to run even though my if statement doesnt do anything. problem something wrong in my code and an exception error (xception of type 'System.OverflowException' occurred in mscorlib.dll)
so can someone show me where or why I have an error is, what am I overthinking now! I could use a hint, OMG i could use a tutor for that matter
[Code]...
ElseIf Statement Into A Select Case Statement?
Jun 23, 2010A co-worker wants to convert the following IfThenElseIf statement into a Select Case statement.
Explain why this is not possible.
If temperature = 100 Then
X = 0
ElseIf population > 1000 Then
X = 1
ElseIf rate < .1 Then
X = -1
End If
Return Statement Which Is True In An If Statement?
May 24, 2012Return statement which is true in an if statement
View 3 RepliesBreak Up The Code In A Method Body Into Statement By Statement Symbols/"tokens"?
Apr 22, 2011I'm writing something that will examine a function and rewrite that function in another language so basically if inside my function F1, i have this line of code var x=a.b(1) how do i break up the function body into symbols or "tokens"?I've searched around and thought that stuff in System.Reflection.MethodInfo.GetMethodBody would do the trick however that class doesn't seem to be able to have the capabilities to do what i want..dit 2:basically what I'm trying to do is to write a program in c#/vb and when i hit F5 a serializer function will (use reflection and) take the entire program (all the classes in that program) and serialize it into a single javascript file. of course javascript doesn't have the .net library so basically the C#/VB program will limit its use of classes to the .js library (which is a library written in c#/vb emulating the framework of javascript objects)
View 4 RepliesExceptions - Can The "Throw" Statement Exist In A Block With No Try/catch Statement
Oct 5, 2009how to use them then before, but am still a little confused with a few aspects. Here goes:
1.) Lets say you have a method that checks for a certain condition(s) and if it fails Throws an exception. Does it have to be in a try/catch block? Meaning can the "Throw" statement exist in a block with no try/catch statement?
2.) Now lets say we have a method that has a try catch block and in it there is a throw statement. When the throw statement is executed does it first try to find an appropriate catch block in the same method or does it immediately go back to the calling method without looking at the catch statements in the current method where the exception was thrown?
3.) I created a custom exception class that inherits from ApplicationException. Next I created a method which has a catch block that catches this type of exception and does some action. Is the System(i.e CLR) smart enough to throw an exception of this type, or does it only throw exceptions from SystemException?
4.) I know that some people are more liberal in their use of exceptions and others use it more sparingly when truly strange stuff happen like the DB going down. I am writing code where I am getting some info back from the database, converting it and then storing it. Sometimes there might be data that comes back from the database and other times the field is empty and the Null value comes back. Therefore in the instances where Null comes back from the database I should not convert the value to anything, since I will get an error. What should I do in this situation? Should I let the CLR throw the exception when it goes to convert the Null value or should I check for the Null value and if it exists not convert?
5.) In general when I throw exceptions, is it sensible to only throw exceptions of the type Application Exception or are there instances where the programmer throws exceptions of the type SystemException?
UnhandledExceptionEventHandler Samples From Msdn Working, In My Code Not Working?
Sep 3, 2009I found on msdn samples and modified (add Thread.GetDomaind.UnhandledException)
<SecurityPermission(SecurityAction.Demand, Flags:=SecurityPermissionFlag.ControlAppDomain)> _
Public Sub Main()
' Add the event handler for handling UI thread exceptions to the event.[code].....
Make A 'like' Statement Or Use Some Kind Of Wildcard To Make The Statement Not Case Sensitive?
Jul 11, 2010I'm building a listview search feature in my app. (See the code below). It works really well, except if you search "T" then the code removes all items, if you search "t" then it removes every item except for those starting with "t". Is there any way to make a 'like' statement, or use some kind of wildcard to make the statement not case sensitive?
For Each itm As ListViewItem In ListView2.Items
If itm.Text Like TextBox1.Text & "*" Or itm.SubItems.Item(1).Text Like TextBox1.Text & "*" Then
Else
[code].....
VS 2008 Cannot Seem To Get A Working Filter In Working Order
Jun 18, 2009It appears that my favorite thing in the world is tackling projects that are beyond my current knowledge and abilities. I have a little project that I am working on which is a simple image viewer stocked with (upon completion) your standard Load..., Next/Previous, Zoom In/Out, Actual Size, and Full Screen capabilities. However, I am running into a few snags:
(1) I've been able to get my "Load..." button to display a file dialog box, but I cannot seem to get a working filter (with which only image file types are allowed to be selected) in working order.
(2) I have a PictureBox object (entitled PictureBox1) that displays the image selected via the file dialog box, but it loads images in their full size (1:1/100% zoomed) state without scrollbars, etc. to allow me to navigate the loaded image. I would like to have it load the image, initially, to fit within the dimensions of PictureBox1 and from there be able to zoom in/out via my "Zoom In/Out" and "Actual Size" buttons and be able to scroll if the zoom level is beyond the dimensions of PictureBox1.
(3) It dawned on me that I haven't the faintest idea how to get my "Next/Previous" buttons to allow the user (me) to navigate, in succession, the images contained in the folder in which the currently loaded image is stored. [code]
If it is deemed that this thread is inappropriately requesting help, I ask that it be locked/deleted quickly as I recognize that this is a large community with many discussions going without need of unwelcome posts.
"End Of Statement Expected" Error In VB 2010 In A Do While Statement?
May 2, 2012I have a line of code that is working in one statement but not the second statement. I'm not sure what I'm doing wrong, I am learning slowly but surely, and it is by no small margin because of the ave found here =) The error is occuring in the intResult = intSelection x intCount line of the SECOND Do While Loop.
The blue squiggle line is under "intCount" just FYI
Dim intSelection As Integer
Dim intCount As Integer = 0
[code]....
Components - "if" Statement Shows An Error " Statement Cannot Appear Outside Of A Method Body"
Jan 29, 2009I have the following vb code which works as expected when it's in a code-behind page. I tried to move it to a shared or component page since I will need to use it in multiple pages:
Imports Microsoft.VisualBasic
Public
Class DetTime
'Determine eastern time
[CODE]...
However the "if" statement shows an error " statement cannot appear outside of a method body" and the Microsoft solution is to "move statement into a procedure or subroutine"
Case Statement Inside A Case Statement
Oct 31, 2011I have coded a case statement that changes the background colour of a panel. [code]When the code is run, it works for the case of colour1 that is NOT 1 or 2. However, when the colour1 is 1 or 2, it is supposed to pick a number from set array and run another case statement. Instead, it only picks the last value (for 1, this is 5, and for 2, this is 7).
View 3 Replies"Using" Statement - "statement Cannot Appear Outside Of A Method Body"
Mar 17, 2010Where should i put the Using statement in Visual Basic 2008 Express Edition? as i put in under general declaration, it said "statement cannot appear outside of a method body"
View 1 Replies