I am developping a VB.net application. I would like to add buttons on the MDI but every time I open a child form of the MDI, it appears down the buttons. Is there any way I can solve this problem?
View 3 RepliesI am working with my project and I have difficulties in my program. This is the set-up: I put a textbox1 and a button1 in the form, textbox1 is for the property of the label text to be add
when I click the button1 I have another textbox, label and a button,I want the added button to remove the textbox, label and if possible the button itself, is there a way to delete a control by the added button?
I'm trying to add a DataGridView to a Split Container Panel. I am able to add the control, but it just places it on top of the old one. What I want is to add it below the existing one. How to do it.
View 1 RepliesIn the early generations of VB.NET visual studio, I used to see an automatically generated region named "Windows Form Designer generated code" that includes the code that generates the controls at the surface of a form. But what happened with VS 2008, I can't see that region any more ? Where are the lines of code that are automatically generated that create controls and set there properties ????? Luai Alrantisi, BSc in Computer Engineering, University of Ottawa 2007, Canada. IT Manager of MTN Mobile Telecom.
View 2 Repliesjust wondering if it is possible to add a method to all forms in my project without having to do it on one form and Inherit all my other forms from that one
View 3 RepliesI am trying to build a NOTEPAD/WORDPAD like application with vb.net on visual studio 2008.
I need an option to define and choose (MsWord, or CSS like) paragraphs styles, such as: "heading1", "green quotes", etc.
How to increase a forms opacity without increasing the opacity of the controls in the form?
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 would like to know how do .net developers manage a large window application with a large number of controls, such as textbox , button, groupbox? I have seen a number of people do it this way : declare the controls as an array and initialize them one by one at run time . In this way it is easy to manage those controls because they can be accessed by array index; but this solution seems to require very good understanding of control's attribute such as its location, font etc. This could be a difficult task if the project is passed on to a less experienced developer and add changes to it.How do you deal with it?
For some reason now, when I start a new project in Visual Basic 2008, I can no longer add any new controls to the forms. All controls are grayed out in the toolbox. What can I check to see what's causing this?
View 1 RepliesI have a 8 bit Gif, that is transparent, with controls sitting on top of it, all in a custom control. This part works fine. However, This control is a menu ring (appears around another control with a few options). The transparent part is over a Picbox, that is in a panel. The transparent part of the image seems to skip the picbox and go right through to the panel. I set the panel to a back color of RED. The custom control when its placed instead of showing the image in the pic box that it is on top of, it shows the RED panel I have made sure all my Z orders are right.
View 5 RepliesI'm creating a reporting application, and our customers are going to need to generate some pretty big reports which require quite a bit of memory. Ive been in a re-factoring mood lately, so I was wondering what the best way to access the properties of another open form would be(The reporting viewer opens in a new form.) So far I have:
Dim form As MainSelections
form = My.Application.OpenForms(2)
yay or nay.
*Edit - I should probably mention that what I need is a label, two date time pickers, 5 datagridviews and a few datasets. Those cotrols have the info I use for my parameters
I have a thread running on a child form, I want to activate a control on the parent form but cannot. It works fine if It's done from the child forms UI thread:
(FormMain.SetControlPropertyValue(FormMain.RBSQL2005, "Checked", True))
but not from a thread running on the child form:
Public Class FormRestoreDB
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim t = New Thread(AddressOf UpdateListView1)
[code]....
If I load a datatable, and then set a listbox properties pointing to it, I get the right data, e.g.:
[code]...
I get System.Data.DataRowView instead of my actual data.I don't understand how the databinding is actual happening, and how I refresh my the data in the control when the data changes.
we all know how to dock or anchor controls so that they resize themselves accordingly when a form is resized. It works fine till we have rows of controls on left and right size of the form. But what if have three columns (Columns as in visual sense. I'm not talking about any column control containing other controls) of controls? For example a form having a bunch of controls in the left side, a bunch in the middle and a bunch in the right. There may be a few more bunches in the middle. Now while resizing the form, I want the controls to resize accordingly as well as change their positions to make space for the previous bunch of controls that are resizing.
I mean, while the user increases the form size horizontally, the controls of the second bunch should resize and at the same time they should move right because the controls of the first bunch are increasing horizontally too. When the user decreases the form size horizontally the same thing should occur in the reverse order. I can manage it somehow using nested split-containers but that's too cumbersome. I would like to know if there's some better way to achieve it, like setting some property etc.?
I have a simple UI form with some controls (textboxes, checkboxes, datagridviews etc.)
The form communicates with an object that contains the values that should be displayed in the controls.
I am trying to group various controls (of the same type, e.g., labels together, buttons together, etc.) on a form using a tag or a name of some sort so I can identify all those that belong to tag 'A' and those in tag 'B'. In the end I will have on a form a number of labels grouped as tag 'A' and some labels as tag 'B' so I can change their visible properties on/off.
View 4 Repliesim am working on a form with a few textboxes and buttons, the problem is when the form is resized or maximized the controls stay small. If someone could please show me how to resize the controls as the form is being resized.
View 2 Repliesis there any way that i can set the property of a control all at once? like for every button, i want their backcolor to be red. something like that.also is it advisable to set the properties of a control in design view rather than code it? does it have any performance issues?
View 3 RepliesI tried rewriting one of my old VB6 projects today. I keep getting stuck. I know that default instancing from VB6 is pretty much gone in VB.net. I have several forms and modules. One form is nothing but a form with a progress bar. When there is certain workload that particular form shows up and displays activity (via progress bar) and then is closes until there is more relevant workload in the app. In VB6, with several of my sub-routines (in my modules) I was able to control the progress bar value by simply referencing it this way: WorkForm.ProgressBar1.Value = (value goes here). This does not work in VB.net since WorkForm itself and any controls on it are considered private. I have tried creating instances of the "WorkForm" via "Dim wForm as New WorkForm", but even then "wForm.ProgressBar1.Value" does not work and I keep getting "'wForm.progressBar1' is not accessible in this context because it is 'Private'."
In fact when I try accessing any control on any form from my various sub-routines all I get is: "is not accessible in this context because it is 'Private'"By the way, is it just me, but after a few days working with .NET framework I realized that it seems pretty web-centric. It seems the whole idea of .NET is to push the apps from the desktop onto the web. I mean, if I rewrote my app to use only a single form up front, I wouldn't be having these problems. But then again, it wouldn't be a desktop app, it would be an app that could be easily embedded into a webpage. Is this the general idea? I am definitely not rewriting my app so it uses only one form. This is a desktop app and multiple forms are necessary.
Does anybody use the Tag property of controls & forms? If so, what for?
View 6 RepliesI am trying to do a really simple function (atleast it was simple in 6.0)... what I want to do is have two forms. One with a textbox, and one with a button and a textbox (we'll call this one form2). When I add a value to form2 and click the button I want the text to appear in form1's textbox.
My code in form2 is...
' on event button1_click...
form1.textbox1.text = me.textbox1.text
("me" being form2)
Anyways, how to pass a value from one form to another.
I am trying to add a a RoboHelp HTML created compiled help file (.chm) to my VB.net forms. I want to add context sensitive help and to have a form display the help index or table of contents when "F1" is pressed. I am having trouble finding a "How to" or code examples to show how to accomplish this.
View 5 RepliesI need to pull the name of some forms in my project and add them to a combobox. How would this be achieved?
Here is a image of the directory layout.
[URL]
I need window1.xaml through window6.xaml to appear in the combobox on my admin form.
i have several forms each with a specific pet. i want to be able to have the user press buy and then the price of the pet will be added to the reciept form. lets say dog1 is $400.
dbldog1 = 400
dblsubtotal = dblsubtotal + dbldog1
on reciept form i would have
lblsubtotal = dblsubtotal
but then it will not show as 400.
Was wonderiong if anyone knew any syntax for adding SWF's to forms, my swf doesn't need to be clicked etc, its just a banner,
View 3 RepliesWas wonderiong if anyone knew any syntax for adding SWF's to forms,my swf doesn't need to be clicked etc, its just a banner,
View 1 RepliesI 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
View 6 RepliesVB.Net Windows forms feature controls that are often dragged from the toolbox onto the form. The code for the control goes right into the form. Usually this is great, but is it possible to write the code for a UI control (like a panel) into a separate file which can then be imported or otherwise included into the main Form Class?
Context (a.k.a. long version): I have a form with an unchanging column of navigation buttons on the left hand side. The rest of the form is taken up by different panels, which in turn have different controls of their own. Clicking the different buttons on the left should cause these different panels to appear (clicking button "A" brings up panel "A"; button "B" brings up panel "B", etc.), but the left-hand menu should stay unchanged.
I'm having a hard time implementing this design in an elegant way in VB.Net. If I make each panel a separate Form, I have to duplicate the code that builds the unchanging left-hand menu in every file, which is terrible. I tried using inherited forms so the separate panels would inherit the left-hand menu from a master form, but that means each click on the menu sprouts the new form in a new window, and although the left-hand menu is inherited, the menu that I clicked and the identical-looking menu in the new window are not the same objects in memory and have no knowledge of each other.
I just want one window with central content that changes based on what you click on the left-hand side. A solution to this would be for the panels to be just that - panels - and not separate forms as I'm currently doing it. But this gets messy organizationally because the code for all of the panels has to be in the one massive master file. Hence the short form of my question (see above): How can I code a panel in a separate file and then bring it into the fold of the main form?
I'm just starting out using vb.net and i am writing my first application. I have added some comboboxes at runtime to my form using the code below.[code]Now my question is now that i have these controls added to the form, how can i iterate through them all and collect the values for sql injection. I have given each combobox a specific name when it was created such as Ball1, Ball2, Ball3.[code]
View 4 Replies