MDI Child Forms Resizing
Jan 19, 2011
Has anyone ever had or dealt with resizing issues on MDI Child forms? I am working on a VB.Net Windows applciation project I inherited from another devloper. When I took it over the forms had already been designed. There are one MDI Parent Form and two MDI Child Forms. When the application starts up the parent form and one child form open by default. Both the parent form and the child form will maximize, restore, and minimize. Although I have to move the parent form slightly, when it is not maximized I can resize it with the mouse pointer as expected. The child form will not resize and when I move the cursor to the border of the child form I do not even get the mouse pointer. Also, when both the parent and child form are maximized the vertical scrollbar on the child form is no longer displayed.
One potential problem is that there are lots of controls on the child form, which are inside several group boxes. When I comment out the controls, the blank form displays without the vertical scrollbar but will resize with the mouse pointer as expected. When I uncomment the controls the resizing does not work any more. The AutoSize propery on all of the controls is set to True. I tried commenting out the code setting the Autosize property to True on the group boxes only. The result of that is that the resizing still does not work and I lose the vertical scrollbar.I am trying to avoid having to redesign the form completely, however I am running out of alternatives. The project will not pass UAT if the resizing does not work.
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Jul 31, 2009
So, my question is, how do I programmatically resize a Form beyond the boundries of the screen?If I try to simply set the Width property for example, it will only extend the width of the Form to the edge of the screen and not beyond that (even the width that I specified extends the Form beyond the screen's edge).
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May 2, 2011
How to make my forms resize automatically. here's the situation. I have my intro screen, which a user may want to maximise. Once this is maximised, the whole program should stay maximised. Again, if the user chooses to restore the window to its default size, the whole program should remain in that default size. However, once the user clicks the button "Press here to start" on the intro screen, the form automatically reverts to its original size if it was maximised. I also need to be able to stretch the contents in the correct ratios to fit the new screen size.
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Feb 12, 2011
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.?
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Aug 12, 2009
Currently, my application is comprised of:a Main Form On this Form, lies an array of User controls, (pardon my terminology, i believe the more proper VB.Net term is Collection of controls). Within these controls are pictureboxes that have distinct graphics drawn on them. When I run this program, no graphics are drawn in the pictureboxes or it appears the graphics are overwritten. Also, it seems that the Form resizes uncontrollably varying in size on the screen and hits an infinite loop. I use the Form_Resize function for updating the size of the form. What could be causing this problem. What is the Paint method used for?Currently, to draw graphics on the Pictureboxes i am using the graphics object. I have two pictureboxes within the usercontrol for toggling back and forth for a more fluid refresh upon property updates.
From my reading, vb.net does not allow the ability to create an array of controls on a form, so I attempted to create an array of controls dynamically to try and stay as close to my vb6 application as possible because my knowledge is limited. This works, from what i can tell I know that in the Upgrade wizard the VB6.Compatiblity reference was used to try and mimic an array of controls, but I wanted to steer away from that and program strictly using VB.Net commands.
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Jun 17, 2011
I have a basic windows form. I have one command button of the default size right in the middle of the form. I also set the anchors for the command button to keep it in the center when the window form is resized.The issue is when I maximize the the window form the command button remains in the center, but it has grown in size tremendously (almost taking up the entire form).I want to keep the command button centered when the form is maximized, but I also want to keep it the same size. Is there a property for the command button I am overlooking which will do this?
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Dec 4, 2011
How do I get my Form1 to resize so that all the (components) buttons and datagridview, etc. stretch and grow with the screen, but stay in their relative positions? I've tried adding Panels around the elements and docking and anchoring, but, so far no success. Elements scatter and don't hold their position, etc. Is there an easy way to do this?
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Jan 9, 2009
I am creating a form in vb.net and i want its size to change the form as soon as the user inputs the desired number of items. In my form I have two combo boxes: one for number of items and the second is for the choices, then when the user choose 5 items 5 text boxes will appear and if the choice is 25 then 25 text boxes will appear. Is there any way that I can change the form based on the input and number of text boxes?
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Jul 12, 2010
i have created a windows form that has some labels, lines , buttons and i have enabled autoscroll property to true. i am having trouble with relocating and resizing of the controls with resizing of form and change in screen resolution.i have used a code liike dim tmpctrl as control
for each tmpctrl in me.controls
tmpctrl.setbounds((tmpctrls.location.x/X)*me.width, (tmpctrls.location.y/Y)*me.height, (tmpctrls.size.width/X)*me.width,(tmpctrls.size.height/Y*me.height))
next
now as my form is a scrollable form.and the total window portion with respect to which i want to resize n relocate. m having trouble in choosing X , Y in the above code.
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Feb 15, 2011
how do i set my vb2008 form in such away that the form size aint affected by screen resolution settings
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Dec 11, 2009
I build my first Project composed of several forms and it�s working just fine. Id like now to redesign the project as a MDI Application. Once created the parent form, I can create child forms but thats not what I need. What I would need is convert my already designed and working forms to MDI child forms. How can that be done?
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Feb 11, 2009
Ive been working on this project of mine for some time now... though im not involved in IT in my current company, im just trying to help to at least have their system computerized (they are still doing it manually by paper & calculator)... I have one problem though which made me stick for 2 days (and still counting) without progress...How To Drag & Drop Between 2 Datagrids Between 2 similar MDI Child Forms
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Jul 1, 2009
I know I can set IsMidContainer in forms for parent-child relationship forms. I just want to know if the parent form could be a panel. If so, how can i do it?
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Apr 8, 2011
I have made a project on Library management system using Microsoft Visual Studio 2008 and Sql server 2005 .I have used MDiParent form in this project, from where I can click on the menu item to open the desired form.
I am now able to open the child forms in the main window background.Now what happens is When I click on one menu Item it open in the parent form background.I am able to open all child forms corresponding to the click event in the MenuToolStrip ...all in the Parent form Now the problem is that I cannot minimize child forms when I minimize Parent form..I want child forms also to minimize along with the Parent form.. Also are child forms still not attached to the parent Form is also my question here.....
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Mar 26, 2011
i'm a beginner in MDI form. i created a MDI form with buttons and child forms. when i click the forms continuously, many forms will be opened. how to avoid forms overlapping, in other words, duplicate
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Feb 18, 2011
Im working with MDI parent/child objects. when closing the child objects i need the child to check to see if it is the last child object before closing. i couldn't find anything on google, maybe im searching for the wrong thing.
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Oct 12, 2010
I am re-doing part of a GUI for my project, The Windows Alias Generator, and decided to switch to MDI. The child forms consists only of RichTextBox1. Here's the generate routine called when the save is clicked:
Private Sub SaveAsToolStripMenuItem_Click(ByVal sender As Object, ByVal e As EventArgs) Handles SaveAsToolStripMenuItem.Click, SaveToolStripButton.Click
Dim ActiveMDI As Form = Me.ActiveMdiChild[code].....
But because I cannot define richtextbox1.text from the currently active MDI, I cannot use this routine...my question is this: How would I get RichTextBox1.text from the save option in the MDI form?
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Sep 19, 2011
I have a MDI child form with its own menus. (TestForm)When I call the child form (Testform.show) from the parent form menu, the MDI Child form's menus are appended to the container form..Essentially, the container form steals the menu of the child form..
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May 11, 2012
I have a MDI parent on which i launch a child form
Dim NewMDIChild As New Frm_addOT
'Set the Parent Form of the Child window.
NewMDIChild.MdiParent = Me
'Display the new form.
NewMDIChild.Show()
His child form contains several comboboxes which hold data from a dbase(sql)
When new data is entered in the cmb it checks the database and if it isn't in there it launches another window
FRM_OTlistaddklant.Visible = True
and copy's the newly entered text in a textbox.
FRM_OTlistaddklant.TB_klantnaam.Text = OTaddklant_naam
then i can give in the details etc.
now, when this is done and the users presses a button "Add"
the information is written to sql(which works perfect)
than i have a public sub on the Frm_addOT which should refill the combobox and
also set the backcolor to a specific color.
and the last two things will not work. Actually when i try to change the backcolor on Frm_addot it triggers the event backcolorchanged and says it has changed but it is not visible.
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Feb 11, 2010
I'm just getting started in VBE 2008 porting a VB6 program and have created the MDI Parent form. I've added a form called frmNav and need to designate this and all subsequent forms as MDI child forms. Is there somewhere in each form's properties where I designate this? It used to be in VB6 there was a property called "MDIChild = True." input id="gwProxy" type="hidden"><!-- Session data--></input> <input id="jsProxy" onclick="jsCall();" type="hidden" />
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Mar 21, 2008
In VB6, MDI applications were possible. You'd create a form and a few Child forms and go with it.
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Oct 26, 2010
I want to access my arrays from many child forms. Where should my arrays and declarations be? and what is the code to access them?
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Jun 2, 2010
I have some VB.Net WinForms I imported from VB2005 that are MDI Child forms. In the old project the clipboard shortcuts work (Ctrl-V, etc.) but in the VS2010 project they do not. the ShortCutsEnabled property is true.Any way to get these working again without adding special code to replicate the feature? I have a bunch of forms to convert....The parent does have KeyPreview but I can comment that out and the problem still exists. I also hook the TextChanged event for dirty logic but I can comment that out also to no avail.
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Oct 5, 2009
I have been looking around at how I can close my parent form and my child form. This article: [URL] has some information but it either doesn't work for me or I am putting the wrong information it. What I want to happen is when a button is pressed I want to close both parent and child forms and then go to another form (frmResults). Then there will be a button on frmResults that will take me to the beginning form (frmPTCalculator). With this code below when I click the button on frmCalculator it goes to the MDI form and both parent and child forms are there.
my Parent form is called: frmGender
my Child form is call: frmMale & frmFemale
Below is what I have tried from the example in my Child form frmMale:
Private Sub btnResults_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnResults.Click
Dim frm2 As frmMale = New frmMale()
AddHandler frm2.FormClosed, AddressOf frm2_FormClosed
[code]....
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Oct 25, 2010
VB.NET 2003 makes it difficult to have a child button create an event on a Parent form control. I would like to change the state of a control on the parent form by using a button on the child form.
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Mar 19, 2012
Is there a quick way of creating child forms? I am going to have 20+ and all the code I can find is this below:[code]Can I not make a subroutine and send the form into it to be made a child form? Something like this pseudo code:Is there a fast way like this available?[code]
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Mar 19, 2012
Is there a quick way of creating child forms? I am going to have 20+ and all the code I can find is this below:
Dim MDIChildForm As New form2()
MDIChildForm.MdiParent = Me
MDIChildForm.Show()
Can I not make a subroutine and send the form into it to be made a child form? Something like this pseudo
Private Sub setChildForms()
createChildForm(form2)
createChildForm(form3)
[code]....
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Dec 15, 2009
Is there any chance to pass values from mdi parent to mdi child.
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Nov 30, 2011
In all my post I have explained I am a total novice so a little more elementary explanation is normally required in my case. I have tried reading the explanations about Parent and child binding but just cant get it to work.This is what I have:
A parent form called Sites Primary key is pkSitesID Various other fields On that form I have placed a tab control and in page one I dragged SitesInstallation to it there is a relation created in the DBDiagram to link fkSitesID (in the sitesinstallation table) and pkSitesID
All I want to do is when I navigate through the Sites records the data in the tab page changes according the values I have selected for that given site.
For example: The Siteinstallation maybe Pending or on air.
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Mar 20, 2012
I have this function
Private Sub createChildForm(ByVal winForm As Form)
'Take a form and set app as its parent form
winForm.MdiParent = Me
winForm.Show()
End Sub
When some one wants to view the "About" form, it's called like this:
createChildForm(New f_about)
But my function doesn't stop them from creating an unlimited number of about windows and I need to put that limit to one form.
For example, I will have a login screen, but I don't want them logging in over and over again in different accounts because my subroutine doesn't stop a form from being created/opened more than once.
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