Repetitive Code That References Components Of Main Form?
Jun 10, 2009
I have a lot of repetitive code that references components of my main form. I wanted to create a separate module (correct terminology?) for all this code to be contained. I cut the offending code and pasted it into my new module, changing each label reference, etc to form1.label.click
Form1 was then underlined and I get this message:Handles clause requires WithEvents variable defined in the containing type or one of its base types.I think I'm headed in the right direction, but what exactly am I looking for? Here is a sampling of the code that I would like to keep in a separate place other than Form1.vb:
[Code]...
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Apr 19, 2011
Possible Duplicate: Best Free Controls for .NET For many usages, for many developers, (including me) it's required to use free (Win or web) components in their projects. Sometimes they doesn't work correctly.
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Mar 31, 2009
I have some C# code I'm trying to convert to VB.NET. There are some external dependencies I'm referencing in each project. The C# line is
TWriteFileCommand writeFile = (TWriteFileCommand)CommunicationLink.CreateCommand(TOPKernel.TCommand.CommandType.WriteFile);
I don't really understand what the TWriteFileCommand in parathesis after the equal sign is for in that statement. When I try to do it in VB.NET, I keep getting errors because I can't get a reference to the CreateCommand function. The closest I've gotten is this:
Dim MyAppBase As OPSupport.App.AppBase
Dim writeFile As TWriteFileCommand
writeFile = MyAppBase.CommunicationLink.CreateCommand(TOPKernel.TCommand.CommandType.WriteFile)
However, I have a green underline after the equal sign @ MyAppBase that flags an error "Variable MyAppBase is used before it has been assigned a value. A null reference exception could result at runtime."What am I missing? Why in the C# code is the instance fine and what do I need to get the equivalent instance in VB.NET?
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Mar 9, 2011
I have Crystal Reports 2008 installed on my win7 laptop but when i go to insert references from my application settings the CrystalDecisions references are missing and im not able to find them. Note: they do exist in my "c:windowsassembly" folder.
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Apr 22, 2010
This is perhaps something that may or may not be feasable in VB.Net. I would like to give my end-user the flexibility to add segments of code to my program, save it to a text file and then run it whenever they need it. This will ease the burden of upkeep; rather than compiling all my code and releasing that at short intervals, I can just let the user update the portion of code they want without having to re-compile the tool.
[URL]
But that does not seem to include variable reference. So if I wanted to add the following code, it won't run.
Dim myText As String = "For n as integer = 1 to 10000" & _
vbCrLf & "me.label1.text = ""label"" & n" & _
vbCrLf & "Next n"
AxScriptControl1.ExecuteStatement(myText)
It would be great if I could run something like that, where as long as all the variables were defined, it would run like compiled code.
[code]....
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Jan 27, 2010
I am using CompilerParameters to dynamically compile code... The problem is when I use:
cp.ReferencedAssemblies.Add(CompilerPath & "est.exe")
to add a reference to test exe ... (where CompilerPath is the full path name)
Compiler Path is not the Compiler Application Path
I get an error when compiling stating that:
vb
"Could not load file or assembly 'test, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. The system cannot find the file specified."
If I put it in the test.dll in the "compiler apps" path and then call ReferencedAssemblies.Add with the full path it works.
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Oct 1, 2011
I deleted a textbox on my login form and when I debug the startup (login) form still has the textbox that was deleted. I tried deleting the form and its components but still this form appears on start up Is. there any way that I can fix this?
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Oct 30, 2009
I'm trying to create a form with a lot of repeated components. I'm making a touch screen control system with a GUI in VB.net. I would like to make it so when a textbox is pressed a form pops up (form1.show()?). This form is basically a number pad. The user can press buttons (0-9) to get the desired integer to appear in a text box in the popup form. When the user presses an "Enter" button, the popup form returns the integer value that was entered to the initial textbox pressed.
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Jun 9, 2009
I want to dynamically add some lables and progress bar on form and then set the values for it.
[Code]...
i'm setting on error on line where i'm setting the location of x and y. if i remove those lines it works but all the progress bar are shown at same location. Also i want to set the values of progress bar, i was trying this me.controls("Pbar1").value = 100 or PBar1.value = 100 but it doesn't work because in 1st case it doesn't know the control is pbar and in 2nd case it says PBAr1 doesn't exist and won't make the build.
[Code]...
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Apr 22, 2012
I have a form that looks like this:and i'm using a backgroundworker to update the components:
Code:
Private Sub btnGO_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnGO.Click
[code].....
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May 31, 2011
I have a development system and two test systems. My development system is Windows 7 (64 bit). My two test systems are Windows XP (x86) and Windows 7 (x86). I have created a program on the development system mostly in VB.NET 2008 and deployed it. It looks nice on the development system and on my Windows XP system, but when executing the software on my Windows 7 (x86) system, all the form sizes and components somehow grow. To investigate the issue, I moved over the entire project and opened it on the Windows 7 (x86) system to find that the sizes have somehow changed in the designer there as well. I opened up the .Designer.vb files and the sizes there all seem correct. Then I go to the IDE and the sizes are larger than they should be. For example, I will set a form size to 532, 217 on my development PC then it will show up as 709, 267 on the test system. I tried putting in code on my form.load event to set the size to 532, 217 then re-deployed it, but again, it executes and the form is too large.
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Dec 17, 2009
I have a form with about 50 controls on it. labels, check boxes, combo boxes. text boxes and so on. Now I have a image on the back ground of the form and have made the checkbox text with transparent back ground so the picture can show through. the problem is that it is so slow to load. I see each one appearing on the form one by one. I have tried this on multiple machines and it does it on all of them. I have tried making the checkboxes not transparent but it still is slow.
how can I allow the form to load completely before it displays it. This is the initial form that loads and shows up.
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Feb 3, 2011
I have to create a report that lists tests that a student has taken and how they answered each question...the column header layout (roughly) looks like:
Test #1 1 2 3 4 5 Test #2 1 2 3 4 5
TestA A B C D E TestB C C B C E
The problem is that the Gridview doesn't seem to like repetitive column names and is renaming the second set of Question #s to something else.
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Aug 27, 2010
I am trying to do repetitive loads of images to one picture box. That is: An image is loaded to the picture box from a bitmap image.It is done this way so the image can be scrolled using the mouse.That works fine.The image is loaded from a file.When I attempt to load a second image from a file, I get an error indicating that the resource has not been released.I have tried Dispose() etc, nothing seems to be working.I started with VB 1.0 and worked up through VB6 over the years and am now transitioning to VS 2010. A bit of a neck snapper, but it seems to be worth it.
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Sep 19, 2011
Is it possible to make a program with visual basic 2010 that does not use the actual form but instead only uses other components (e.g. Message Box) to form a complete program?
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Aug 5, 2010
i have my main child form open. then i show the new form:
[Code]...
but when the form opens it flickers a lot. so i want move the new form behind the main form while it loads so the user does not see the flicker. once it is done loading i will set the form to topmost. how do i move the new form behind the main form?
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Aug 14, 2011
I am trying to find a solution, in eliminating repetitive string names, say for ex.,in a literal field, i am populating names of the contributor of certain article's history version, and so, if "ron" has contributed to the versioning of an article 3 times, the name "ron" gets added to this literal control, and outputs "ron" 3 times.
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Jun 15, 2009
Repetitive Statements: Looking for an alternative to a function or subroutine. Years ago, I wrote programs for a company using a language called "Algol", I am sure some of you know of it and but many more do not, it is a pretty old language. It had a capability that I used called a "Define" where you could take a statement (for example x = y + z ) and create a 'define' which was a simple, short replication of that statement. (x=y+z) could be defined as 'mysum'. You could then use 'mysum' any where in the program in place of the 'x=y+z' statement.
[Code]...
Is there a similar type capability in Visual Basic? A sub routine does not satisfy the need unless the variables x, y and z are globally dimensioned to the module? I can do this, but would prefer not to. I am expect there is a similar capability, but I personally have only scratched the surface of the VB capabilities.
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Jan 7, 2010
I have a listview with four columns (category, name, date , amount). More than one items falls in a category and I mark them with a number. ex - different kinds of pens as no.5. So, if I make an entry of five pens, five "5"s shows up in the category column. I want to display only one "5" in the category column and not to make it crowded with same numbers.
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Nov 20, 2010
I used the "Anchor" options to resize components when i maximize my form using the default system button and all works fine. But if at anytime i double click on the title bar to maximize/restore window it maximizes, but when it's to restore it won't became the original states, it comes like a big window not maximized.
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Nov 20, 2009
I have a tool window that I want to stay above the main application form, but not stay on top of all windows forms. Similar to the floating properties window for visual studio - it always stays on top of the main VS window, but if I select another program, like internet explorer, the floating properties window will be behind internet explorer.
What I have is an application that has several forms that may be displayed at the same time. I have a Messages form that displays messages generated by the code in the form, that gives the status of the application. Obviously, the user would not normally be working on this form, but they may want it to be visible to see the status messages from the program (File saved confirmations, etc). So, my two options right now are I can set the form to be on top of all other windows forms or, when the user clicks on the main application form, the messages form would be hidden by the main form.
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Jan 29, 2010
I have a main form with datagridview containing a list of contacts:
VB
Public Class Form1
Private Db As New DataClasses1DataContext
Private Sub Form1_Load
[Code]....
After saving, I get the correct message ("Saved"), and the DataGridView in the first form gets updated in real time.
But... when I take look at the data (or close and reopen the forms) the data in the database (SQL server) have not changed! What happens!
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May 15, 2012
How do i load the Main form of a WPF so that a seperate thread goes and gets data from the database while the form is in an apartmentstate? (drag-able / movable) I Know this is possible with opening a new window from your main form like this :
Private Sub openOrderWindow()
Dim OrderWindow As Orders = New Orders
OrderWindow.ShowDialog()
End Sub
[code]....
I've tried putting MyBase.ShowDialog() and .Show() and .9000+ other things The only benefit I've got out of using a seperate thread to load from the databse is i can see the screen right away (as oppose to it being a transparent box until it loads) but i cannot move it around or minimize it?is there any way to make it Movable while it loads?
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Apr 29, 2011
[Code] I want like to check if a file exist on main form, if not: force open settings form. And then when the user is closing the form with exit button = check if the file exist again. If it doesn't exist, close application. It's a huge application and I need optimized on most parts. Also, the settings form is asking the closing question two times.
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Jul 9, 2010
How can I make the main form grey out/translucent black when a new form opens on top?
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Jun 5, 2012
i am having some trouble in my Windows form application. i have 2 forms1st Main / Parent Form2nd Sub / Child Form (Menu)
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Aug 7, 2009
I'm having an interesting issue that I can't reproduce on a different project, but can consistently on this one. I have no clue what might be causing it, but am hoping that someone may have seen it before.
I have a main form, from which I run a series of checks. On this form, I have a listview control. Because of some issues with the refreshing of this listview control, I had to create my own messagebox. It's just a form that displays some text ( it also happens to look nicer than MsgBox; in my opinion, anyways ). It's been working great for months, until recently.
My problem is that on my main form's load event, I run this check, which returns an error within a try/catch block. I then call my custom messagebox with a message. It in turns calls it's ShowDialog() function.
In any other situation ( after the main form has been loaded ), I have no problems. The messagebox goes on the screen and behaves appropriately ( ie: waits for my input and acts as a modal dialog ( stops execution of my main form's thread ) ). However, on this onload event, my messagebox comes up and goes away almost immediately afterwards.
I've traced it all the way to the showdialog() call. For no explicable reason, it appears to skip right over this call, without me doing anything on the form.
Here's what the inner trace looks like ( when I put a breakpoint on the onclosing event for this messagebox form ):
CODE:
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Aug 11, 2009
I have a program I've been working on for some time now and I'd like to try to streamline it somewhat. I have a main menu form that has a split panel, in the left panel is a treeview that displays forms you can open and when one is selected, it opens in a child window in the right panel. Each time I open form I called DWNForm, it does a series of dataset loads which are the populating items for a series of listviews.
What I would like to do is have these datasets load once during the mainMenu load and then have the DWNForm be able to access the datasets once it is called from the treeview selection.
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Mar 22, 2011
I want to create an IMAGELIST in a main form and add to it then have it accessible within a child form. I found several MS examples on database shared access but this is NOT the concept I am after. Straight forward:
Child_Form.<function_to_execute_in_child_form>(The_Passed_Imagelist)
So, within the child form it want to do whatever I like to the IMAGELIST! I have tried passing the object by reference and anything I could think of.
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Feb 3, 2010
I want to be able to check if there is currently a dialog or modal form shown for my form so that I can close it.
Is there a way to do this?
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