I have a TreeView with a bunch of nodes. I have some code that is supposed to modify the label, however it has no effect. When i step through it in the debugger, I see that the the .Text property has the correct value, but it is not reflected in the GUI. I'm not sure what I'm doing wrong. Here's the code:
[Code]...
I have a tree view with a parent node. parent node will have 2 or more child nodes and the nodes data will come from a access database table. if I select any one of the child node with the mouse it will display the SUM of the child node's data in a label control below the tree view control. the access datable table might look like this [code]...
View 1 RepliesI want to do like the picture. Select a child node and it displays the sum of the titleid associated with it in a Label Control. I add my project here so that you can take a look at, what I am trying to do.
View 4 RepliesIt seems that Visual Studio is using a older verion of the System.Windows.Forms DLL.
When I instantiate a instance of the TreeNode object it doesn't have the "value" property. Right now my version of Sytem.Windows.Forms is listed as 2.0.0.0 and it's being pulled from the Microsoft.NETFrameworkv2.0.50727 folder.
I've installed all of the current .NET framework service packs....
Is there something else that I need to do so that the I load the most current version of this object?
Is it possible to read a label's text property of another app? I know how to get the handle of the main window, and how to get the handle for a child. But the problem is that there's like 20 other labels on the window and when I use winID to get it's class, it's just "Edit", and it's the same for all the labels. And the title is the value of the labels text property. [URL]
View 3 Repliesi would like to be able to double click on a label for a text box and write a value into the .tag property and then change the color surrounding the label.for example.. if the user double click the default label..(which looks like the stardard label) then I would write a "1" to the tag property for that label, and at the same time, change the line color surrounding the label to red(maybe even changing the thinkness of the line).
when the user would double click the label again.. I was see that it was already selected and change the setting back to the default.
What is the code to assign a event handler value to the Text property of the appropriate label. Here is my code so far and I want the values created by clicking the button to display in the text for the associated text boxes?
[Code]...
I would like to be able to return the text generated from an httphandler and insert it into my web page during an onload event. There are examples that show how to return an image by setting the image source to the path of the handler. But how do you do this for just text as in the "hello world" basic template. I would like the text value of a label on my page to be set to "hello world", preferably withour using javascript.
View 2 RepliesThose who are looking for an example like this, might find it useful (or not). I know i was looking for one like this for over a week. Ok now, to make this codes work properly, you have to make a Database in Ms Access (I used MS Access 2007) . Create a table of two Columns, one name Debit and one name Credit. Both of the Columns Data Types must be Long Integers or you might get some conversion errors at run time. Now save the database in Access 2000-2003 Database format. And last of all, put the database in your projects DebugBin directory to avoid the database Connection Errors.
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I've got two classes deployed as COM+ components, let's say ClassA and ClassB. ClassA has some public properties. ClassB sets values for those properties and calls a method of ClassA. The method itself does not modify the value of the property. After the call the values of the properties are reset to default values for the corresponding types. This only happens if the called method includes statement ContextUtil.SetComplete(). Once I comment out the statement the values of the properties remain same as they were before the method call, which is what I expect. Do I overlook some basic concept of COM+ objects and their contexts? I would expect the property value to remain the same in any case.
Here's the simplified listing for the code:
Option Strict Off
Option Explicit On
Imports System.EnterpriseServices
<Transaction(TransactionOption.Required)> _
Public Class ClassA
[Code] .....
I Use a thread to send an email. I need write text in a label to let user know when email was send in a form of budgets.' Option Strict is off Function on class form.
Public Sub ChangeLblText(ByVal msg As String) ' LblIconos.modifiers = public (In form)
lblIconos.Text = msg
End Sub
Declarated class of new thread. (Global declared.)
Public TasksPresu As New TasksClassPresu()
An Icon of Form "Presupuestos" trigger the thread
Dim Thread1 As New System.Threading.Thread(AddressOf TasksPresu.TaskEmail)
Thread1.Start()
Class Trigged thread
[code]....
When run this make an error in this line: lbliconos.text = msg Error: "Illegal operation through threads. It had access to the control "lbliconos" from a thread other than that which was created"
I Use a thread to send an email. I need write text in a label to let user know when email was send in a form of budgets.
' Option Strict is off
Public Sub ChangeLblText(ByVal msg As String) ' LblIconos.modifiers = public (In form)
lblIconos.Text = msg
End Sub
[code]....
I tried Invoke metods, delegate functions and adress of form without work, may be i left something.
For unit tests I would like to mimic different commandline arguments. How do I modify the commandLine args to my program at runtime (looked around but can't find the trick)? Basically I am trying to find a way to modify the contents of the READONLY property Environment.CommandLine.
View 2 RepliesIn VS2008 (VB.NET) when you type Public Property X As SomeType and press enter, VS auto-generates the rest of that property definition for you.
I would like to be able to customize what VS generates. Any thoughts on how to go about that? VS must have a template for it somewhere, eh?
So I have a TreeView that starts off empty. Sequence of events is as follows:
Add a new root node. Code makes the label edit box pop up immediately, and I give it a name.
Add a new subnode to that root node.
Add a new root node, after the first one. The label edit box pops up, and I give it a name.
The second root node takes on its new name, but so does the subnode added in step #2. Now, it's not really the subnode's text; if I examine that TreeNode in the debugger, it has the proper text for a subnode. But that text that was entered into the root node sticks around through expanding and collapsing its parent node, until something else happens and I need to rebuild the tree.
I'm building the tree in kind of an odd way - removing all root nodes from the parent, all child nodes from the root, updating all the tags and text, creating new nodes, then re-adding the nodes to their parents - but I've checked, and the proper text is being associated with the proper node. The TreeNode that is showing the wrong text has only ever modeled the one object, never had anything else in its Text property, and has its text set back to the right value ("untitled action") right before being re-added to its parent node.
All I can think of for a culprit is the code for the label editing box, which is based on an MSDN sample:
Private Sub EditSelectedCategoryName()
If Not ActionList.SelectedNode.IsEditing Then
ActionList.LabelEdit = True
ActionList.SelectedNode.BeginEdit()
[Code] .....
EditSelectedCategoryName is called by a context menu item's Click event, right after the new root node is added and made the selected node. The DisplayName setter in the AfterLabelEdit event handler is what triggers another chain of events that rebuilds the tree. So am I screwing up some internal structure of the TreeView by altering its contents in the AfterLabelEdit event?
Let say I have the following classes[code]...
If I wanted to say, alter the code definition of the automatic property X (at runtime, perhaps in Sub New), such that I could throw the PropertyChanged event
I have question about Label.Text.
When run the code Form1 load together with Form2.On Form2 I have Label1.I need that Label.Text flicker or blinking.
I have a form that I am loading text (strings) from a database into a label.text (so the text from the database shows up into the label) I have done this code in a class that keeps all my database stuff seperate.
Public Function getQuestions() As List(Of String)
Dim question As New List(Of String)
objConnection.Open()
objReader = objcommand.ExecuteReader
[CODE]...
Within the form that the label is in I have done this code
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Label1.Text(db.getQuestions().ToArray)
End Sub
I am basically making a quiz, so that when the form loads, question 1 is on there is 4 possible answers. You then press next button and it goes to the next question.
Is there an effecient way to give one label the ForeColor, BackColor and Text of another one of 3 possible labels? I need to do this frequently for a dozen labels in a windows form.
View 2 RepliesI am using a label to display a song for an mp3 player. I wanted to scroll the text inside the label for anything that is longer than the label width. I figured out the width of the label and if the width of the text inside the label is longer. But I have no idea how to turn this into subtracting parts/pixels of the text currently displayed and how to append the subtracted parts to the end of the new text.
Sub f1timer2tick()
Dim g As Graphics = f1l2.CreateGraphics
Dim s As SizeF
If f1l2.Text.Length > 19 Then
[code]....
I change the text of a label with this [code]But how do i go back to the original text? Someone gave me this code ,to work with Tag's [code]This works , but when the label is in a Groupbox or on a Tabpage it won't work ?
View 3 RepliesI'm using this code to receive messages from the server and append it to a text box:
Public Sub ReceiveMessage(ByVal ar As IAsyncResult)
Try
Dim bytesRead As Integer
[code].....
maintain same distance between textbox & Label while resizing form, Is there any property to label or textbox.when we want same distance from form then we use anchor property but i want to maintain same distance from next control that is textbox. How i can maintain same distance while resizing form?
View 1 RepliesIm doing a text editor program for my course and im having real trouble working out how to load a menu to modify the text.ive added a menustrip and split off tools into:
-font size
-font colour
-background colour
i have text file more than 2000 row like these:
[Code]...
and i want to find the avarge of the 1440 row ,start from down to up and find the max,then find the avarge for each 30 row and put them besid the data and find the max of these avarge like this max(od data)=---- max(averge)=-----
I'm trying to make it so you click on a button, you will be able to modify what is selected in a list box.I'm trying to learn from a book but this has been frustrating me and I have no idea how to even get started.(This is VB.Net 2003)
View 4 RepliesIs it possible for me to modify this area1.txt format to format as in area_modify.txt file take a look txt file for diffrent.... the area1.txt just simple report.
View 14 RepliesI have a folder containing different levels of subfolders. Each subfolder contains text files. I want to replace a particular text in a given file. Could anybody put up a demo code in VBA using FileSystemObject?
View 2 Repliesi have a project that requires me to make a unit converter. the units should be defined within the program. i have reached a point where i save the defined units in a text file for a simple example converting meters to kilometers where it gets divided by 1000 i made the program to save the a string in a text file to represent that as:
meter,kilometer,0.001
which means it gets multiplied by 0.001 anyway the problem that i'm facing that when i want so save another units in the same file the previous units gets deleted. how to make the program update the text file that it adds the new defined units in the same file but before that it looks in the test file if the unit is already exists and if it does it will replace it with the new value
is it possible to read a string just before the second comer? foe example if the string in a file is: meter,kilometer,0.001 it will read it as: meter,kilometer and is it possible just to read the last value? 0.001
I've made a simple webbrowser and now i want to be able to modify the text in a webpage. In the webpage source code I have something like this <td class="res">Hello</td> and I want to replace Hello with Hi, so people see Hi on their screen instead of Hello. How can I accomplish this?
View 2 Replies