In a MDI application, for opening a form in the MDI, I am using the following code
Private Sub RoleToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RoleToolStripMenuItem.Click
Dim lobj_ChildForm As frmRole
'Check if form is already open
lobj_ChildForm = Nothing
[code]....
As you can see, I need loopong through all the open child forms.
I have a program that will let you open a certain table in the database and query it on a child form in a MDI parent form. Of course the child form is a new instance of an existing form.The thing I want to do is that the opened table in the child form cannot be reopened again in the other child form. So I did was to create a childform name on every new instance of a childform depending what is the name of the table.
The first thing I did to do this restriction is to put the names of the opened table to an public array and when the user tried to reopen the table, the program will check if the childform name is already existing... and if it exist it will not let the user to open the table in new childform.When the childform is close it will erase it's name to the public array. And it can be open again.If you don't understand what I want to do this is the situation for example in a microsoft office when a word document file was open it will be put in a childform, and when the user tried to open the word file again and still the word file is open in the microsoft word the application will tell it's user that the word document file is still open.
It is my goal to write a program to run a retail store. I am an intermediate Access developer, so I have a good grasp of the basics.However, I find that developing in VB 2010 is quite different.I will have forms for:
Company Information
Employee Information
Supplier Information
Customer Information
Invoices & Purchase Orders
All I really need to know at this point is the code to open and close each form.
I have an MDI parent screen that loads on startup and a lot of child forms that load when opening. So as the child forms load there's a lot of flashing and it looks really ugly. Once they're loaded all I have to do is use a bring to front, maximized command and it works smoother than closing a form and opening a new one every time a different form is selected. I've tried creating a splash screen, minimizing the forms on load, etc and everything still works in order so first the splash screen then the forms load.
How would you set it up so a splash screen stays on top of all other forms for like 5 seconds while the forms load in the background without seeing them load? Right now the screen shows then when it's done it moves on to step 2 which is loading the child forms. If no splash screen, how do I make it load so you don't see all the child forms opening at once?
In VB6, MDI applications were possible. You'd create a form and a few Child forms and go with it.
View 7 RepliesI have these codes to load 2 MDI child forms from my menu...
Private Sub Form1ToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Form1ToolStripMenuItem.Click
Dim f As New Form1
[code]....
but still nothing happens.
I have a Midi form with controls I always want to be displayed even when child forms are open. I can position the location of the child forms when the project is first opened with no issues. The problem I have is if more than 3 child forms are open and I enter the middle form one of the others is no longer visible. Me.LayoutMdi(MdiLayout.Cascade) will reorder all the forms but it starts at location(0,0). Have tried the other options available with midilayout and they all do the same thing
View 6 Repliesi use a picture control in mdi form .. but when i load child froms then mdi form picture are also show in front of child form...
View 7 RepliesDrag & Drop Between 2 Datagrids Between 2 MDI Child Forms 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 my apologies, im not that adept in VB.net programming...
View 1 RepliesI have an MDI application where the child forms are set to sizeable, but when I hit the cascade option the forms are resized. Other than setting the forms to a fixed size is there any way round this?
View 2 RepliesI have an MDI form on which I am trying to open two other forms in the same place (not at the same time). One works, one doesn't. Both of these forms have the following as the very first statement in the load event.
One form opens in that location and functions fine. The other form, which is the same size, seems to spread out across the MDI form top-to-bottom wise. There is also a bar at the top with min, max, and close buttons that came from where I don't know as the form is set with no border. This form must open in the correct way as there is a menu at the top of the MDI. Anybody have any idea why this is happening? Some property or something which is different between the 2 forms?[code]...
I have an MDI form with child forms which I open on it. The following statement in each form's load event places a child form in the location I want:
Me.Location = New Point(0, 136) I have several of these working. However, I have one form for which this statement does not work. It opens spread out over the entire parent form. Also, there is a border at the top with min, max, and close buttons even though the form has no border. This form has a picture box on it, if that means anything. why this child form does not open in the specified location?
I want a set of child forms to keep their relative sizes and locations to their parent form when parent form is resized. So if one child form is opened and covers the lower right quadrant.. it will remain a quadrant for whatever resize is done on parent form.
View 3 RepliesWe have a main form which opens an MDI child form. What we want is to set the focus on a particular control in the child form, namely a telerik textbox. When the form is opened for the first time, the focus is set to the textbox control which has a tabIndex = 1 as expected. If the winodw is closed (and disposed) and then reopened via a button on the tool bar that calls the same code that opens the window when the application starts, no control has focus. We have added lines such as Me.rtxtPatientId.Focus() in the Paint event, load event, and activated event handlers but still cannot get the focus to the control. The code is quite extensive so posting it is difficult. However, here is the section that opens the child window:
if PatientSearchForm Is Nothing Then
PatientSearchForm = New frmPatientLookup
End If
PatientSearchForm.MdiParent = Me
PatientSearchForm.Show()
If PatientSearchForm.WindowState = FormWindowState.Minimized Then
PatientSearchForm.WindowState = FormWindowState.Normal
End If
PatientSearchForm.Activate()
PatientSearchForm.rtxtPatientID.Focus()
My application having one mdiform in that form six child forms are there.Switching of one form into anather form blue bar is appearing form at the title of every opened child form.These six child forms are opens in mdiform.how to remove the blue bars are appearing from every opened child form in mdiform.how to remove these blue bar. I have tested this "NewMDIChild.Location = New Point(x,y)".but blue bars are not remove in the opening of mdichild form into mdiform. This bars are appearing in the opening condition of mdichild form after clicking any button in the mdiform.
View 1 RepliesMy application having one mdiform in that form six child forms are there.Switching of one form into anather form blue bar is appearing form at the title of every opened child form.These six child forms are opens in mdiform.how to remove the blue bars are appearing from every opened child form in mdiform.how to remove these blue bar.I have tested this "NewMDIChild.Location = New Point(x,y)".but blue bars are not remove in the opening of mdichild form into mdiform.This bars are appearing in the opening condition of mdichild form after clicking any button in the mdiform.
View 1 RepliesI 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?
View 1 RepliesIve 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
View 16 RepliesI 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?
View 1 RepliesI'm creating an application that uses an MDI container to create a sort of desktop style for my form with a group of icons docked to the left hand side. The rest of the form is the desktop area that I want all windows to open in.If I use the standard File-New option that is provided by VB as a default for the MDI container this works fine and a child window is loaded.If I use similar code from one of the icons this also works fine.y problem is that one of my child forms is a search panel and when I double click on one of the results I want a window to open, but as an MDI child. However, this doesnt happen. When I open the window it opens as a completely separate window and isn't docked within the MDI parent. It also appears on the task bar as a separate application.
View 4 RepliesI 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.....
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
View 6 RepliesI got a question can I make a dll for opening forms?
View 3 RepliesI'm new to non internet programing. But I got to start somewhere. So i'll try and make this simple I have a MDI parent form with a tab control section. From a link in the toolbar i would like to open a diffrent form in my tab section. This is what I figured out so far if its even close.
[Code]...
on visual basic how can you open random forms? (im doing a quiz with questions on separate forms and would like to open random forms to show the random questions)
View 24 RepliesFirstly though, I'll have to mention that I'm a relative newcomer to vb.net and don't really know that much about advanced functions.I have my main form which dynamically generates 15 buttons.
Each of these buttons will need to open another form, depending on which form has been assigned to that button in a config file (the config file isn't yet done, as I want to get it working simply by hardcoding the name of the forms for the time being)
The way I have it in my head is that I would assign the form name that needs to be open to the name of the button, if that makes sense....However, I have absolutely no clue how to do it, I've tried a couple of things but to no avail.
Here's my code, and I have no problem changing any part of it if it will help things along, this is just the only way I know how to create dynamic buttons.[CODE...]
I am attempting to find a way to get an existing form to close and re-open (with the controls re-set). If I use a method like
[Code]...
Is there any switch that will allow you to open an application over all the other currently open applications? My problem is getting Explorer to open over all the other currently open applications. Right now, it only opens in the background......
View 5 RepliesI want to open a VB.net form using a ThreadPool with a maximum of 10 threads. I need to do this because, the form should open based on a live event and i need atmost 10 forms on the desktop at a time. If i open the form on every live event without using a ThreadPool, the desktop will be floaded with many forms. I am using QueueUserWorkItem method of threadpool to queue a method which opens the form. In this queued method, there is form1.show() statement called. But after displaying the form, this method finishes execution and again we have 10 threads available in the system. I somehow want to either keep this method running so that 1 thread is occupied or i want to keep the thread alive till the form1 is closed by the user. I want the 11th form to appear on the desktop, only when any of the existing forms out of the 10 (already on desktop) is closed.
View 2 RepliesI have a group of buttons all with different labels. I want to have each of these specific buttons open up the same form, but my problem is when I write the code of form1.show it pops open twenty or so different windows. How to I make one button open just one window?
View 15 Replies
