I have setup some base forms with some bottons on it The buttons are situated in a panel.Both the panel and the buttons modifer properties have been set up as "Friend".The problem I have is when I inherit these base forms, the buttons seem to jump around by themselves allot
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I have a base form and I inherit other forms from it. However, if i go back and change say the size of the base form, I don't see those changes take effect in my inherited forms. Does anyone know why that is? Is there a solution to this issue?So as far as design is goes, what exactly gets inherited by other forms?
View 9 RepliesI have a lot of forms set up, probably about 10-15 so far (more to come). Some forms 'lay' on top of other forms, and each form contains multiple controls. I am discovering that my approach is not very likely to succeed in what I am thinking of doing.
Here is one example: LeftControlPanel form contains 5 controls, but 5 other forms 'lay' on top of it and use transparencies to load up bitmaps. Since I cannot parent the forms that 'lay' on top of the form, I cannot figure out a good way to move them.Is it logical that when I move LeftControlPanel to a different x location, I would just move all the forms that 'lay' on top of them as well?Seems like a clunky approach of moving one form since parenting the transparency forms will remove all the transparencies that are set up...
Is there a bit better logic I might be missing, or bite the bullet and start moving multiple forms at once?
In re-engineering a windows forms application, I find that a lot of code-behind in the various form classes is duplicative and I'm trying to centralize as many procedures as possible into a base class which can be inherited and used by the subclassed forms.
This process seems to be going well and is making the code in my subclasses much simpler and hopefully easier to maintain, but I'm not sure where to draw the line between leaving code in the subclasses and engineering for generic resusability and moving it to the base class.
Specifically, in some subclasses I have code which manipulates variables and objects specific to the subclass, and although I could move the code-behind into the base class, the base class code references specific objects which are needed to compile. For example, each subclass manipulates a databound datagridview and form detail controls which allows the user to select between multi-record and detailed single-record views of a datatable.
In Visual Basic 2008 do I need to declare dummy data objects in the base class so that the base class will compile? Or is there a way to indicate that the data objects will be provided by the subclass?
on the custom inherited control i created, i noticed that when i bind my custom property to a data column, if that data column returns a value other than Null it always return a datarowstate of modified even if there were no changes. to produce this issue, i have below a sample code for a test inherited control
Imports System.Windows.Forms
Imports System.ComponentModel
Public Class TestControl
[code].....
on the custom inherited control i created, i noticed that when i bind my custom property to a data column, if that data column returns a value other than Null it always return a datarowstate of modified even if there were no changes.to produce this issue, i have below a sample code for a test inherited control
Imports System.Windows.Forms
Imports System.ComponentModel
Public Class TestControl
[code]....
create a form, add the usual objects necessary for data bindings, (datasource, datatable). make sure the data column bound to this TestControl will return non null values.also create a procedure for position changed to catch the datarowstate like below...
Private Sub PositionChanged(ByVal sender As Object, ByVal e As System.EventArgs)
Dim rowstate As DataRowState = DataRowState.Unchanged
[code]....
Note that i used Position - 1 so that when you go to the next record, it will show you the rowstate of the previous record.
on your Form_Load add the ff:
AddHandler YourBindingSource.PositionChanged, AddressOf PositionChanged
don't make any changes to the current record before you go to the next record. you will see that the rowstate will still return Modified.
am trying to make use of inheritance to keep consistency in my user control appearance. I created a usercontrol to use as my base design, as a platform to link to a tab as acontainer. To this I added a few framing visual items like a header panel andsome labels.I then created another usercontrol that inherits from my base control, with the intention of adding the necessary items to this derived control to build it into a complete functional usercontrol that I can associate with a tab on my main form. I want to keep the visual appearance consistent across all similar derived controls. Then later if I change the design of the base form, this flows through to the derived controls.
View 7 RepliesUnable to add Controls to Inherited Form I should be able to add an inherited form by simply[code]...
View 2 RepliesI am using visual inheritance and was wondering if there is a way to change the properties of inherited controls at design time, preferably in the form designer. If not, then in the designer code. I have my control declared as Public in the base class. I can access it in the child form code, but not in the form designer. Is this just not possible?
View 3 Replieswhat is the diff between custom control ,inherited controls adn usercontrol in vb.netadil
View 2 Replieson the custom inherited control i created, i noticed that when i bind my custom property to a data column, if that data column returns a value other than Null it always return a datarowstate of modified even if there were no changes. don't make any changes to the current record before you go to the next record. you will see that the rowstate will still return Modified.
View 8 RepliesPretending I have a class that inherits off Control, how would I handle the parent form's Resize and Move events within the control? I have a painting glitch that happens when the form is resized or moved. Right now in the form I just have:
vb.net Private Sub frmMain_ResizeMove(ByVal sender As Object, ByVal e As System.EventArgs) _ Handles Me.Resize, Me.Move Me.Refresh()End Sub
But this can't be the proper way to do it, considering Refresh() invalidates all children (will be slow and flashing if the form has lots of controls). I want to basically do the above code inside the control.
Edit:This is the glitch after a resize of the parent form:
And this is what the button is supposed to look like:
Also, I experience this issue if something like a message box is dragged over top of it. How can I remedy these issues by forcing a repaint?
When I create an inherited form, after creation for some reason I cant see the form to edit in designer, I mean I cant drag and drop buttons, labels or any control to it since I just CANT see it, I have included a pic of what I see below where Form1 is the Inherited Form. What Am I doing wrong or what is happening
View 6 RepliesWe have a vb.net 2010 application with a base form and an inherited form When we change the position of a control coded on the inherited form we lose handles on the events in the inherited form for that control. We also lose the handles on the Load event in the inherited form.
View 9 RepliesI have a form called BaseReportForm that handles drawing some stuff to in a panel to create a template for a bunch of reports. The drawing all takes place in the Panel's Paint event and this form will always be inherited. In the inherited forms, I draw the specific details of the report in the inherited form's Panel Paint event. So I am drawing to the same panel from the base form and from the inherited form. It all works fine, but when I try to open the design view for the inherited forms, I get the following error..
Quote:
The event Paint is read-only and cannot be changed.
I'm not sure I am handling my paint events correctly. Is there a different way I should be handling the drawing of these reports?
When I place a control on a form and need to move it, it becomes invisible when I click the mouse to move . What did I accidently change? I use to be able to see it before.
View 3 RepliesI am attempting to move all controls on a form down or up by the height of a menubar depending on whether it is visible or not. I have code which I think ought to work well for this, however it seems that Me.Controls is empty at runtime, so my for each loop is never entered. Could someone please offer a suggestion as to how I can move the controls?
Private Sub uxMenuStrip_VisibleChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles uxMenuStrip.VisibleChanged
For Each control As Control In Me.Controls
If control.Name <> "uxMenuStrip" Then
[code]....
For a winForm I'm building, I'm working with a TableLayoutPanel which has an arbitrary number of Textboxes and two buttons to add or remove boxes, + and -. The + and - buttons appear directly below the Textbox to which the user has given focus like so:
[Code]...
How would i do it in my code if i Want to use an "ENTER" key when transferring control?
View 6 RepliesI know this is probably not going to be simple, I tried searching around, but couldn't find anything. I am using some code to 'draw' text in a custom format to a panel with a custom bitmapped region (custom shape).Here is the code that writes the text inside a specified area:
g = LeftControlPanelV2.Panel1.CreateGraphics
Using fnt As New Font(New FontFamily("Arial"), 9, FontStyle.Regular, GraphicsUnit.Point)
Dim sf As StringFormat = StringFormat.GenericDefault
sf.Trimming = StringTrimming.EllipsisWord
[code]....
Obviously the text is not really located on the panel, but looks like it as it's drawn on top of the panel. So, when the panel or form that the panel is attached to moves, I lose the text. I though I could just call back to writing the text when the panel/form arrives at the correct place, while clunky, it works to a degree. I was hoping there was a better way of doing this, so that the text doesn't disappear when moving controls and I don't have to make repeated calls to the same drawing text over and over and over...
Edit: Should probably add that there will be 5 different panels each with their own custom drawn text, and all 5 need to move at the same time...
I am using NI Measurement studio and VS 2008.I want to move visual displays around when program is running. To simplify the problem it is similar to [code] I get an error telling me it will not acept assignment.Am I doing it wrong. How do you modify this propertythe button property behaves the same as LED1 in NI so lets focus on Changing (Button1.Location. Whatever ...)
View 1 RepliesI am working on a project that I want to allow the user to move and resize controls in a panel container at runtime, much like the developer can do in the IDE.Is there a mode (not sure its the right term) I can implement on a selected control that will show the grab handles and allow moving and such?
View 6 RepliesI'm working on a .Net Windows application. All the controls arrange fine, but when the user specifies their Windows display text to be larger than the Windows 7 default of 'Smaller', the controls get moved around on the form and makes it unusable.
Is there a way to lock down those controls no matter what the display text setting is at?
I could review that could help me create a designer view (actually similar to how Visual Studio works but more basic), I would like to be able to add controls dynamically (just panels or images), then move those around individually(drag and drop), then count them all and get an array of what I have added..[code]But I would like to get an idea how it looks if things get more complicated..I wonder, are we able to use the classes of Visual Studio's editor in some way? Or are there .NEt classses that can do this?
View 2 RepliesAt design time in the IDE, you can ctrl-click or drag a box around multiple controls on a form and move them all at once. How do you do that at runtime. I need to be able to create image maps based on textual copies of medical claim forms that are generated from different systems and the ability to create dynamic label controls and move a single or multiple controls and resize is required. How does MS do this in the IDE?
View 7 RepliesI have a winform with a main panel that is anchored top, left; dock: fill, and set to a specific size to contain another panel of content that we want to scroll through. The other panel along with a few other controls are on the main panel. Now, for some reason, after running the application the controls will be shifted down (never horizontally) some random amount. Now, the "random amount" may in fact be the last position of the scroll bar or something, but either way, it is unintended functionality. I have resorted to automatically resetting the locations of these controls on the main form in the constructor?
View 1 RepliesI have a query about dynamically added controls to a form. I have a series of buttons which are created and added at run time. I have a two drop down lists and two buttons which are created at design time. Button 1 creates a series of buttons called "Test 1.x" based upon the selection of the two drop down lists. This works fine and am happy with the logic.However.... Button two should remove all the dynamically created buttons from the form.This does not happen. What does happen is that 50% of the buttons are removed starting with the first one. WHen checking the loop it only enters the loop half the amount of times that there are buttons. Very strange. When the loop is run repeatability it will remove all controls. Why will my logic not remove all the dynamically created controls at once? What is wrong with my logic?
I attach two code snippets and the .net file for your consideration.Button method which creates the dynamically created buttons from the two drop down lists and adds to form
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim Count As Integer
Dim MaxHours As Integer
[code]....
I'm currently building a program where there are two list box's and a button to copy the selected array item in listBox1 to listBox2 in a separate array.[code]
View 2 RepliesI've created a batch file on our domain controller to export users based on the OU they are in.
@ECHO OFF
ECHO This tool will export all users in the chosen Active Directory OU.
ECHO.
[Code]....
The form design is only a text box (txtClientID) and a Go button.
if i have 2 forms amd one module the module contains a public var user1 = string my first form has text box and button 2nd form a label and button now i enter text into text box press button form 1 closes form2 opens and label displays var contents i press button on form 2 form closes form 1 opens enter new text repeat the procudure and the label on form 2 still contains the information from the first time i ran the prog and wont change , its as if the var is locked?
stephen
form1 code
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code]......
