WPF Trouble Updating A Textbox From A Variable
Jun 15, 2012
Using WPF, and VB.net, I want to update a textbox in a textblock with the current date and time. I use a timer, and it seems to be firing, and setting an object property to "Now".And I am using iNotifyPropertyChanged.All I get is an empty textbox with no data in it. Can you help? Maybe my context is off? [code]
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May 17, 2006
I can retrieve records from my Database fine, but I'm having trouble updating records. I am getting a syntax error on [code] I get this error when I change the Last Name (Row 0, Column 1). [code]
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Oct 10, 2011
I thought I was beginning to grasp this function and class business, but it's still giving me a lot of trouble. I created a class for the character, with a function to randomly generate a number for damage, but I'm having trouble calling the function with a button click on the main form to test display a random number in my rich text box.[code]
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Feb 16, 2011
This is my assignment for tonight. If anyone can enlighten me as to why it doesn't work. I
know I haven't finished the timer, I trying to get results in the labels.[code...]
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Jan 24, 2012
I am building an xml file with the help of Linq queries and I'm not sure why the code below doesn't work.[code]
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Nov 29, 2009
So I'm trying to split a "," from an array that I parsed after the xml file is loaded. I tried several things.[code]
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Jun 22, 2012
I have a program that sorts through data and exports to excel. This works fine on a small file but when using a bigger one it runs down then repeats the same line around 1k times then moves on to wrap it up.
Dim lineindex As Integer
Dim first As Integer
Dim currentlinetext As String
[code]....
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May 31, 2011
I have a subroutine that passes several variables to the called subroutine.I want one of the variables to be updated by the called subroutine and then check for the change in the calling subroutine. My code works fine except that the variable I am checking
calling Sub routine
Code:
Public Sub ProjectName_Exit(Cancel As Integer)
[code].....
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Aug 12, 2010
My app looks in a folder for all the pdf files and then emails it to an address.If the email was sent successfully, the file in the folder must be moved to a new folder called "Sent". Or the approach you will see in my code where I copy the file to the new location and then delete the old one. [code]
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May 27, 2010
I currently for the life of me can not get this to work.[code]Days(num).openTime(0) = New Date() 'Which gives the same error as openTime @ 0 has not been created as an array object (I'm assuming)Which leaves me completely lost because I've never had issues assigning initializing 1-dimensional arrays but this i just confusing the heck outta me. If anyone knows how I can initialize the 2nd part of the array (Days(num).openTime(0)) I would love to learn from you.
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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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Nov 23, 2010
I'm trying to update a text field... in this manner:The main form (where I have the design)
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Dec 14, 2010
I have written an application which uses the Outlook object library to send an e-mail with information from a textbox. I programmed this on Windows 7 and Office 2010, which was a mistake as most of the clients will be using Windows XP and Office 2007. I am getting an error when running the application on Windows XP/2007:
Could not load file or assembly 'Microsoft.Office.Interop.Outlook, Version=14.0.0.0 .... etc
I understand that this is because I have not loaded the Outlook 12.0 assemblies, however I am having trouble adding the assemblies on my Win7/2010 programming machine. I have downloaded the standalone Office 2007 PIAs however the Outlook 12.0 doesnt appear on the list, and when I try and add just the Office 12.0 I get an error.
is there a way to standardise and make the application work with both 2007 and 2010 outlook machines? I think it is possible, I have read some articles making the application choose the correct version, however cannot figure out how to.
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Oct 17, 2011
I have a progress bar for each function, but I would like a textbox to show the user what stage of the update they are on. The textbox becomes visible but the text does not display the text.
Private Sub btnUpdateAll_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnUpdateAll.Click
txtUpdating.Visible = True
txtUpdating.Text = "Updating ALPS Data..."
UpdateALPS_Data()
[Code] .....
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Aug 20, 2010
i try to create a windows form that act something smilar to a cash machine i managed to enter a mount with my first button then my second button is for withdrawing money it checks the amount in the text amount if it is higher than the amount the small dat hold in the amount it will throw an error message if it is less or equal it write the amount in the text box my goal is to deduct that amount in the textbox amount from the amount already at the database.[code]
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Feb 7, 2010
I have been trying to update a textbox on the main form of my program using a different thread, however the changes are not relected in the textbox.I am using MS Dev studio 2010 beta 2.0 .NET 4.0. Here's my code....
The main form
Code:
Public Class frmMain
Private Engine As New clsEngine
Private txtMessage As String
[Code]...
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Nov 7, 2010
QuoteImports System.Data.OleDb
Public Class admin
Inherits System.Windows.Forms.Form
Dim mypath = Application.StartupPath & "\db1.accdb"
Dim connection As New OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=d:\db1.accdb;Persist Security Info=False;")
[Code]...
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Nov 23, 2010
I'm trying to update a text field... in this manner:The main form (where I have the design):
Code:
Public Class Form1
Public Sub ChangeTextBox(ByVal vVal As String)
TextBox1.Text = TextBox1.Text & vVal
[code].....
First I click on the button to open the port. Then I do this code so whenever I receive data from a serial port connection, "Hello" string is written in the text field.. I debugged it, made sure COM Port is open, and data seems to pass to the textbox.. because when I put my mouse over to display the values inside the textbox it shows that "Hello" is stored.. and I tried doing the textbox1.refresh() but still nothing happens.. the textbox remains empty!
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Apr 26, 2010
I am writing my first app in VBEE and require your expert assistance.Once a button is clicked in my app, a number of queries in Access 2007 are run. I would like to display the progress of these queries and send text to a text box informing the user of the progress, i.e.[code]I have entered the Text I want to display but it does not update it as it progresses through the code, instead it updates all of the text at the end, once all of the queries have been run.I would also like a progress bar to display the progress of the queries [code]
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Apr 19, 2010
I have a windows form which contains a textbox.I have a loop in my code doing some farly intensive work. In the middle of the loop I want to update my text box.text property on the form to let my users see some simple progress.
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Nov 2, 2009
I have a form thats an invoice generator. You type numbers into the text box and it displays totals in the listbox at the bottom. I was trying to make it so that as you typed into the textbox it would update the listbox.
Private Sub txtWBQuantity_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles txtWBQuantity.KeyPress
'This section makes it so that you can not type a letter into the txtWBQuantity textbox
[Code]....
It works kind of, after I hit the next key it calculates the total of the first number I typed then writes the next number, how can I make it calculate the total after I hit the key?
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Oct 28, 2010
This is my prob:I have a textbox in which I have a path where a certain document has to be saved. Now when I select something from combobox1 I want the textbox to be updated so the new path becomes: (Old path & "" & Combobox1.text)
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Mar 9, 2011
Read Textbox and CheckBox for Update Access 2003 Database
My Code is:
Dim cnString As String = "Provider=Microsoft.Jet.OLEDB.4.0;Persist Security Info=False;Data Source=ChemiBas.mdb;Jet OLEDB:Database Password=1"
Dim con As OleDbConnection = New OleDbConnection(cnString)
Dim command As New OleDbCommand
command.Connection = con
[Code] .....
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Jan 17, 2012
I have a simple Sub:
[code]...
It's job is to scroll the textbox (txt_folderactivity) after I update the text box with a new entry. The textbox is multi-line, so this keeps us at the bottom so we can see the new stuff. This sub gets called whenever any of the other subs add a line for things like file rename, deletion, etc. based on file system events (using Public watchFolder as FileSystemWatcher).I had a crossthread issue with just updating the textbox, but I wrote in a Delegate /Invoke for that and it works fine (something I found online earlier this morning), but now I have another issue and I'm not sure how to work it.
I'm getting a crossthread issue with this specific Sub specifically at the SelectionLength, and I'd like to set it up with a Delegate and Invoke and such, but I don't know how specifically. I've searched and read, but I don't get it. Do I need a seperate invoke on each of the 3 lines, or is there an overarching Invoke for the whole bit I'm still new-ish to VB and I don't know how to proceed. I've read some MSDN pages and stuff, but they aren't explaining what the problems is really and what I need to do (or prehaps I'm just not getting it).
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Apr 27, 2011
I am developing a Point of Sale application and I have a form for the selling interface where i would like the user to enter an Item code (stock code) and based on the entry search for the record in the database. After Searching i would like the data of Item Code, Item Description and Unit price displayed on the form using textbox control.
(I am using Visual Studio 2010 - Express Edition)
I have tried using the following code but its not working
Private Sub txtItemCode_TextChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles txtItemCode.TextChanged
Dim db As DataRow
[Code]....
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Mar 8, 2012
Windows Forms, VB application... Forgive me in advance for this very elementary question but I am overlooking something really simple here. I would like to have a label show the current value of a variable as the for each loop runs.. I created a very simple Button Click event to figure out where its failing. As it is right now the value does not display until after the for each loop finishes running, which it should actually display the counter value each time it runs through... I know this is possible and really simple because I did it years back but for the life of me cant figure out why I am missing the bar as it should constantly update the label to reflect that?Test Sub is as follows:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim counter As Integer = 0
For x As Integer = 1 To 200000
[code]....
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Nov 25, 2011
I have 3 text boxes that update with each other. One the user inputs the text, two the text is used for translation and instantly deleted, and three displays the translated text. If I need to backspace the code updates the translation adding double of each letter I delete. I need a way to skip all of the application code every time the backspace key is held. My current code here (full dictionary cut to save space).
Public Class Form1
Public Sub RichTextBox3_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles RichTextBox1.KeyDown
If e.KeyCode = Keys.Back Then
[Code] .....
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Dec 11, 2009
I have this lambda expression Me.SubcriperGrd.ItemsSource source.Where(Function(p As subscripers) p.Navn Like navn)
where i should filter the grid data based on the typed input in a txtbox
It returns the result when i type the full name but it doesn't filter the data as i type along in the txt field
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Jun 13, 2010
I have an app that automates a Google query but I have to enter my search terms in the code each time before I build the app and that's crazy.....how can I fit a variable in here from a textbox?
I pasted the code here....but...the variable is needed at the line of code:
txt.SetAttribute("value", "Sample Information")
Sample Information is my search query but I want to be able to use a text box to input my own variable at run time.
Code:
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Automate = True
[Code] .....
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May 1, 2011
Is it possible to use a variable for text box names?I have 25 student name, and grade boxes that need to appear and disappear depending on how large the student number was given to start with.So far i have had to use this if\then statement 25 times.
If txtStudentNum.Text = "" Then
txtStudent1.Hide()
txtGrade1.Hide()
ElseIf txtStudentNum.Text > 0 Then
[code].....
how would one go about cleaning up all of those if\then statements to clean up the clutter of the code?
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