I have an Inherited Control with a Property that can be set in the designer. There's some code in the Set procedure to make sure it's set appropriately. However when I build or run the project that property is changed, I am assuming it's the sanity check code in the Set procedure that's causing it to be changed along with some VS beahviour. Here's the code:
[Code]...
I have a modified button control with a string array in it. I am having trouble sending the string array to the form with the modified button on it. Anyone know what i can do? The form uses a arrayList to hold the buttons since they are made at runtime.
View 4 RepliesI am trying to refresh my combobox when an item is selected and added the highlighted code as shown below; [code]Items collection cannot be modified when the DataSource property is set.
View 3 RepliesI have a combobobox on my form, and I use the following code to populate the data from SQL Server:
cbname.DataSource = DSAssetName.Tables(0)
cbname.DisplayMember = "IDWLNAME"
cbname.ValueMember = "FIDWID"
[code].....
I have two tables "Person" and "Alias" in a one to many relationship. I have a DGV for "Person" and want to use a combobox for the Aliases. I also have a textbox and a button for the user to type the alias name and click the button to add the alias name to the combobox and update the dataset. I keep getting the "Items collection cannot be modified when the DataSource property is set." Error. But if i use a DGV instead of a combobox for aliases, I have no errors and everything works fine. If I remove the datasource property for the combobox it will not get populated with the data already entered, so how, or can I, set it up where the combobox gets populated when the form loads and able to add items to the combobox????
View 1 RepliesLike i want it to read the lines i have in the text file but i get an error Each time i press the button Why?
Private Sub Button5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button5.Click
Dim objreader As New System.IO.StreamReader("C:UsersJamesDesktopMusicas.txt")
Do Until objreader.EndOfStream
[code]....
Error:
Quote:
Items collection cannot be modified when the DataSource property is set.
Error line
Quote:
ListBox1.Items.Add(objreader)
Can Windows Form Trigger when a control has been modify or not ? I mean i have 3 panel and inside of those panel have a textbox, how am i able to find whether some of the textbox where modified in a specific panel? i.e panel 3 textbox2 has been modify i want that i have a notification that panel3 textbox were modified
View 1 RepliesI tried to build my project but it has 1 build error
:Property 'Keycode' is non-nullable.
I double click it but it points nowhere. I'm really desperate. My project consists of Crystal Report. It had just been upgraded from version 8.5 to version 11. Is it possible that this is the source of error?
i made a class library with by adding two .jpeg images and changing build action property to embeded resources and i saved i want to use this two images from this .dll into my application .
View 9 RepliesOkay, so I just started using visual bsaic 2010. For my first project I am trying to build a web browser, i am using a tab control and all my buttons work on the original tab but once a make a new tab the buttons dont work
[code]...
it comes up saying index 0 is out of range
I have the following code:
XAML code for Window1.xaml and the VB.Net code for Window1.xaml.vb.
The error I get is the following[code\...
I can't see any problem in the code and what it should do is trigger an animation depending on the status of a service (spooler service in this case). It may be because I am manually referencing to the System.ServiceProcess namespace, which is not available in WPF framework by default, but I'm not sure.
I am using a webBrowser control in vs 2008 to be used as a wiziwig editor to edit newsletters, everything works find but when I specify designmode = "On" -Me.webDESIGN.Document.DomDocument.designMode = "On" And try to load the webBrowser control with another newsletter, it comes up with this annoying message "This page has been modified Do you want to save changes". I need to somehow supress this message and don'twant to do anything, I' have already saved the page at this time. I tried the solution her
View 1 RepliesI would like to be able to set Control visual properties such as color, boarder, flat style, etc. on the base class of the control so that as I add new instances of the control, each instance inherits the visual properties of the base. I have tried using Application Settings but it appears as though I need to reference an application setting manually each time I add the control to a form. This is a Windows Form question.
View 4 RepliesI'm trying to make a program with transparent labels over pictureboxes and when I set the label Parent to the PictureBox the position of the label changes.
View 2 Repliesi frequently have troubles with the dock property. it seems that either the order of creation or adding to the parent control determines whether or not a control's dock property supersedes another's. e.g. a control with the dockstyle fill will overlap with another docked control on the same parent. does anyone know what the rules are to determine how docking will behave; particularly in dynamically created GUIs?
View 2 RepliesIs there a way to bind the text property of a control to an expression? I have a user control that I add to a FlowLayoutPanel. You can see I have 4 controls in the FlowLayoutPanel below. The first control is a LinkLabel and the other three are my user controls which are numbered 1, 2, & 3. I'd like to bind the label that shows the 1, 2, or 3 to the user controls index within the FlowLayoutPanel.
If I happen to remove the 2nd user control I want the 3rd user control to now display 2. I could use the FlowLayoutPanel ControlAdded or ControlRemoved events, but wanted to see if I could do some binding first.
If I need access to the value of a user control's property BEFORE PreRender, would I need to base the custom control off of one of the preexisting data controls (repeater, listview,etc.)?One of my user controls features a gridview control that is configured based on the user control's properties on which it resides. Several of the key properties alter the SQL Statement for the underlying recordsource. I'm now in a situation where the property that sets the WHERE statement for the SQL Statement needs to tied to a value in the user control's parent FormView. Think of the formview as displaying a customer detail record. The user control takes the customer's account number and then displays data from a related table such as Customer Contact Names. Since the gridview is created before the control's prerender event, working within the prerender event doesn't seem efficient.
View 1 RepliesI am using SourceSafe 2005, and I have a project in VB.NET Framework 4.What I want is a way to automate the build process and hopefully integrate easy deployment. I'd like to be able to send an automated notification when a build is made that lists the comments of the SourceSafe check-in's in the body of the message.I've looked at a few options and some of them are confusing. I've seen it implemented with SVN, nAnt and CruiseControl, but it looks like it might take ages to set up being a novice of the aforementioned technologies.What would be the easiest way to set something like this up in your opinion? If I have to start using SVN for this, then that would also be a possibility.
View 2 RepliesI'm back, and now with a great problem...I need to put a TrackBar in my application, in a Panel with an ImageBackGround... but the TrackBar doesn't work with Transparent Background...Now I want to build my own TrackBar Control, but support the Transparent Background...I read in some page that I need to use CustomDraw... to customize te aparience of my TrackBar... but I can't undertand how..
View 3 Repliesim a student ,im doing my final year project,its for deaf students, i want to know how can i create 3D human character? how can i control that human characters movements via a vb or c# program such as when im type in a text box "Right hand" The 3D model shod raise his/her right hand are their any suitable libs for my need
View 3 RepliesWhen CheckedListBox is only one line high, all itmes hidden, there are two small black arrows on right side, one up and another down. I want to CheckedListBox only has one down arrow, when click the down arrow, will popup a window and show all items, like the control below [URL]
View 1 Repliesam having trouble getting a user control to build. Its for a Snake game and the sub for drawing the snake on the grid is throwing up this error when i try to build the user control.
View 1 RepliesIn my application i will use a customized datagridview for all the application, so instead of adding the normal datagridview and changing the properties, i created an user control and changed the inherited to datagridview... This have a problem i can't use the drag and drop...
[Code]...
I've used 3d control magic for VB.NET to create shaped forms.When I bulid my project to create an exe, I want to include 3d control magic.exe into it, to be installed automatically in the clients computer.
View 1 RepliesI want to build a textbox user control which will remove all the escape characters and when we put the user control in the form it should be sizable.Also i want to create a 3 tier application in vb.net.i need a sample code for it in vb.net.Can u plz post me a simple program as of how the 3tier architecture is been implemented.
View 1 RepliesI know about user controls and custom controls, but I want to build a control like the Open File Dialog or Event Log Components that don't have UI and just pop to the bottom of the form like the OFD. How do I do this?
View 2 RepliesI inherits textbox Control and I added some new properties to it .one of these properties value i want it to change it's value in desgin time when i change Name property of the new textbox
Public Class NewTextBox
Inherits TextBox
Private _txtSubName As String = String.Empty
That is the property for set or get SubstringName of Textbox
Public Property SubName() As String
Get
Return _txtSubName[code].....
that's the property i want to change it's value when i change Name property of the control.i tried to overrides Name property but it's not overridable also i trieds to overloads it but it doesn't work in desgin time.Here is something i tried but it's wronge.
Private _txtName As String = ""
Public Overloads Property Name() As String
Get[code]......
I'm trying to build an application to monitor a site to build statistics from the data being read. This HTML looks like this.
<div id="history">
<h4>HISTORY</h4>
<table border="0" cellspacing="0" cellpadding="0">
[code]...
Now I can read the html and put the text anywhere, I just don't how to read specific parts so I can separate the data out.
I have a Form with a Media Player in it. Which plays a Song.
[Code]...
It's playing in the background since the Form is hidden. When I play itin Debug, everything works fine. When I run the app outside Debug, I get this error: [URL] The Music File is there, but strangely, there comes this weird error.
A particular VB.NET project is actually throwing 'Build Failed' But when I try rebuilding again it says 'Rebuild Succeeded'. It keeps alternating this behavior. Kind of random. Any vbc.exe issue of long locking the PDB or xml files?
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