I did a quick net search and found this which works great for looping through all the buttons to disable them. These buttons are located right on the form.
For Each ctlControl In Form_BLAH.Controls
Select Case TypeName(ctlControl)
Case "Button"
ctlControl.Enabled = False
End Select
Next ctlControl
However...when I tried it on a form where the buttons are contained within a Table Layout Panel it does not work.
I have created a customised checkbox control (only the text and border appearance has been modified), and wanted to loop through them in a User quizto see which have been checked and are correct. I have used the Tag property (set to 1 or 0) to identify incorrect answers, and tried to loop through with the following code:For Each thing As GMAW.MyCheckBox In currentParent.ActiveMdiChild.Controls
View 7 RepliesI am trying to find a way to use the UseCompatibleTextRendering properties on each control on my form. However, it does not seem to be an option when i use the following code below:
For Each ocontrol As Control In Form1.Controls
ocontrol.UseCompatibleTextRendering = True
Next
ocontrol does not seem to have that option but has all other options for the button. If i do Buttion1.UseCompatibleTextRendering = True then it works just fine.
i have a winform and i have about 30 labels and 30 picture boxes on it. What i would like to do is fill each label and picturebox with a value and image from a backend database. I could have easily done this in vb6 using control struture , for eg.
for x = 1 to 30
picturebox(x).image = value from database
label(x).caption = value from database
[code]....
I am now working on converting this entire application over to a Web Application, and I am stuck in the same position. I am attaching the code that works in VB.Net:[code]....
View 1 RepliesI am converting a program I wrote in VB6 to Visual Studio 2010 VB.Net and have run into a problem. I am trying to cycle through 20 form elements on a form that all have the prefix 'chkCustomerItems' and then have a number 1 to 20 behind them. I am using this with a database lookup so that it there is a database entry it then applies the database item name to the checkbox's text field and turns visibility on. Here is the code I wrote:
ConnOpenClose()
Rs = New ADODB.Recordset
Sql = "SELECT * FROM CustomersItems;"
[Code]....
When it runs, I get a NullReferenceException error. This is basically the code that I used in VB6 (with some changes for .NET infrastructure).
I'm translating my VB.Net application, and I need to loop through all the controls on my form. Using a recursive function such as
[Code]...
But there is obviously an inheritance problem, since CommonDialog objects are not controls.
Is there a way for me to loop through really all the items displayed on my form?
i have created control array , now i wann to loop around as well wann to find which control has triggered the respective event my code :
[Code]...
I have recently started to try to convert some of the applications I have written in VBA in excel into stand alone programs. I don't have any formal programming training and I am learning the hard way that VB is really not very close to VBA!! I am trying to change the properties of radio buttons in a groupbox when a certain event occurs. In VBA I used this code:
[Code]...
I've got a page with a ton of checkBoxes on it. I would like to have a loop that can can just go through all of them but I can't get it to work. I know similar code works for a desktop application but apparently not for an ASP page. [Code]
View 5 RepliesI have 20 controls that I created on a form. the names are like btnRing1, btnRing2, btnRing3, etc.
So I have a do while loop , and I have my variables in place. One line of code is "btnRing1.Start = PlrName" So PlrName is a variable, pulling that info from a database. I don't want to list each btnRing1, 2, 3 in each block of code in my loop.
Is there a way to use the name btnRing + 1, or something like that so I don't have to list all 20 controls in my code.
I know I can dynamically build the controls, but I can only have 20, so I need to have a little control on the numbers. So I need to have the controls already built.
I have a dynamic webpage that loads a user control multiple times, including loading the user control within itself as many times as needed. Within the user control there are four controls: Title Label, Repeater, Placeholder and within Repeater a AjaxControlToolkit Rating control.
The structure can look like the following:
Webpage
Placeholder
UserControl (repeater hidden, no data)
Placeholder - [UserControl]
[code]....
how do I efficiently loop through this type of structure to find the rating controls?
I am looping through all controls on my form and for all checkboxes, I want to see if they are checked. I cannot get the Checked property when doing this. Am I doing something wrong?
[code]...
Inside a form, I would like to display a pdf file which is already available in my resources (template file "untitled"). In this pdf file, I have some fields which get their values from some texboxes in another form. My aim is, when the user triggers the button to call this form, it should insert the values inside the pdf file and display the output pdf inside the form.I have written the code to an extend but could not finish it myself after my many trials... Now here are the two things I cannot manage:I can use a directory to read the template pdf "untitled1.pdf". But my aim is to use the file inside my resources. can save the output file in a directory but this is not I want to do. I want to display the output pdf.
View 1 RepliesI am familer with looping thru controls like so:
[Code]....
Next I have some labels on another form, that due to the design can't be in seperate panels. They are (lblChipColor1 - 6) and (lblChipValue1 - 7). I am trying to populate the color ones from the Array above. I can obviously loop thru the array, but I can't find a decent way to loop thru just the lblChipColorx lables ignoring the lblChipValue1x labels. It would be easy if they were on seperate panels. I tried adding the labels names to an array of type string and of type label, but got nowhere with that. Is there another way to group them, or build const array of label names, that I can work with?
How can I find a List or Collection of User Controls available within the development enviroment and dynamically add them to a combox by their Name Property. I am looking for something along the lines of:
View 4 RepliesIs it possible to resize my controls on my form when I run it? The problem I have is that I have created a windows application which has a maximize state on all forms but on some machines my controls go missing (mostly on widescreen laptops). Ideally some way of resizing my controls would probably be best? So is that possible?
View 10 RepliesI've run in to a very annoying situation. At the moment I have a program with 4 forms. 3 of these forms work fine, but the fourth seems to be a dud. After clicking any one of the buttons or controls on this form it works. But if I try to click anything again, it doesn't work. I can't use my back buttons, I can't even use the minimize, maximize and exit buttons in the top right corner which are automatically built in to the program. I fear I have accidentally changed a setting, or accidentally deleted some very crucial code for this
View 8 RepliesWhat I am trying to do is have a Form which can dynamically change the controls which are on it and their properties; this allows my main GUI to be more fluid and not have tons of groups and controls on it which I must hide and show when needed. To make this as extensible and reusable as possible, however, I want all the control additions/subtractions/edits to occur through a separate DLL which I write. The problem is, I can't seem to instantiate any controls in the Class Library because I cannot import 'System.Windows' or any of its children ('Forms').
View 9 RepliesWhere is the best place to resize a control on a form when a form is resized?....I'm currently using the Form1_SizeChanged event and seems to work ok. Also is there any need to check in the forms resize event if the form is in a minimized state before resizing controls?.,.. in VB6 if you try to resize a control when the form is minimized you get an error, but I don't see that happening in BV10 Form1_SizeChanged event, does VB10 automatically ignore resizing controls when a form is minimized or something?
View 2 RepliesI have developed a windows application on a size of 1366,768. When i have opened the application on another pc, the location of the controls are not the same anymore. Part of the application can't be displayed as well. How can I handle that in vb?
View 1 RepliesI'd like to design a Winform with expanding controls if that 's overly complicated. The idea is that I would have rows of information, each with an "Expand" button. On pressing the button, the rows underneath the selected row would move down and the controls that are associated with the selected row (some textboxes/ dropdowns etc) would appear. Vice versa when you click the "Hide" button.
View 2 RepliesI'm trying to make an autoupdater, so I've made it search for updates in the beginning and that works fine. But now when the update form is supposed to open, it goes a while and then it says "File Download Complete". So that means the form must have been executed, but it does just not appear. But when I click ok on the dialog, the updater form appears, but with all controls white. Here's my updater.vb: [URL]
I'm using Kleinma's WebFileDownloader class.
I suspect that the problem might be that the updater's form doesn't get it's events handled or doesn't get redrawn.
How would I go about doing multiple layers on a form?Say the first layer contains a command button that when its click, it changes to the second layer hiding the command button and showing the controls on the second layer?
View 6 Repliesthere is any event or way to detect activity in an form or project?in the form and all the child controls.
mainly mouse clicks (not mousemove) and key press.
for example, if the form have not activity in the lasts 10 minutes, do something.
How would I Pre-Draw/Pre-Rendering Controls on a form before it appears? Is this possible??
View 10 RepliesI've removed a few controls from my form, but they're still in the properties. I've looked in the Document Outline, but nothing. How can I remove them (save)?
View 6 RepliesI have a custom control of type MyListControl with a Property called NotifiedList. I would like that when selecting that property in the Property Grid at runtime, that a dropdown list is populated with all the instances of type MyListControl that shared the same container as the original control.
View 3 Repliesunfortunately searching the web i cannot find a decent example that allows me to loop through a winform to make sure comboboxes items are selected.basically what i would like to do is check the form if the comboboxes have been selected if not then highlight them yellow and set the focus on them.
View 8 RepliesI have some code that I want to apply to many objects (Pictre Boxes) and I was unable to loop through the objects via a For loop and am currently forced to copy paste the code for each Image Box.
The Pictre Boxes are named compAlien1, compAlien2 ... compAlien9
Is there a way to do something similar to this:
For i = 1 To 10 Step 1
compAlien[i]... #code#
Next i