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.
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.
View 2 RepliesI have the following code to close a form which is a child. The problem is that when it closes, it closes the MDI parent too.
Private Sub frmTransaction_Closing(ByVal sender As Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles MyBase.Closing
If ListView1.Items.Count >= 1 Then
[Code]....
i have created two forms A and B when button in form A is clicked B is invoked when B is running its not possible to work on A until i close form B. How can i work on A without closing B
View 5 RepliesI have a parent form that has a list of items and each item has a unique ID. The user can open one or many of the items in a child form (it is set up in a tabbed MDI), but it can only open one instance of each item at a time.
In the parent form, I was going to make a collection (or something like that, maybe there is a better way) to keep track of which items are open in the child forms. I need to know when each child is closed so that it can be removed from the collection and reopened at a later time. I was thinking that when the child form closes, it somehow does something (like raise an event) that tells the parent form to remove the unique ID from the list of current open child forms.
My questions are, is this a good way to do this and I am pretty sure I would use the form closed event in the child form to update that parent form, but as well, I didn't know if this is the best way of handling it.
If raising the event is a good way, are some examples on how to do it out there? I found some for controls, but not while the form is closing/closed.
I have a MDI project that has a parent and several children forms. In some of the children forms I would like to make one of the forms to be a parent form with children. On this child form I wanted to make a tabbed MDI, which I can do, but I have found out that I can't make a child form a parent, from what I have found.
Is there any way to get around this? (As in nested MDI forms.)
Form1 is a mdi container. It has a bunch of forms that can load inside of it as mdi children. If I close each open form inside the form1, and then click the red X at the top right, application exits fine.If I click the red X without closing the forms inside I get: An unhandled exception of type 'System.CannotUnloadAppDomainException' occurred in mscorlib.dll
Additional information: Error while unloading appdomain. (Exception from HRESULT: 0x80131015) However I can break from it. How do I get the application to not show that error? What must I do to fix those inside forms or close when the red x is clicked?
This is a very basic question, I have a parent form and a child form and both window state are set to maximize, would it be possible to remove the toolbar at the top? I have tried most thing like setting the form border style to none on the child form but still I get two tool bars. I would like to remove the tool bar in the black square
View 5 RepliesI'm trying to give the user a chance to cancel FormClosing of MDI Parent by throwing a "Are you sure?" msgbox with an e.cancel however when FormClosing is invoked by MDI Parent, all MDI Children close first, before the msgbox appears.
I was wondering if there's an easier way to prevent MDI Children from closing rather than having to e.cancel every child form's FormClosing until I get a positive response to close and then push all the close events on the children because that seems like too much of a hassle if you have a lot of MDI Children.
EDIT: I guess the only solution I can find is adding If e.CloseReason = CloseReason.MdiFormClosing Then e.Cancel = True to the FormClosing event and using ApplicationExit instead.
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?
I have a main form, and some sub forms, and each sub form can have some sub forms. When I have multiple sub forms open, and I try to get data from the parent form, it returns the data from the wrong parent form.For example I have two instances of Mainform.subform running. If I do something like this in a child form of one instance of the subform. It returns data from the other subform.
dim l = Mainform.subform.listofdata
Edit:I am using visual Studio 2008. Winforms, form designed using designer. In my mainform I am doing this
Protected Friend frmMain as Mainform
frmmain = new mainform
In frmMain I am doing this
Protected Friend frmsub as new Subform'
frmsub = new subform
[code]....
I am making an address book for my final project in school, and have a few questions. In my address book, there is a feature to add groups so you can sort your contacts. The problem is, the add group feature is in a different form, I tried calling a procedure from the parent form to refresh all data but it does not work.[code]
View 2 RepliesI create a new mdi child inside my mdi parent. do the work, save the data and close the form.Then I open the same form again, different record, and it opens up cascading as if the 1st form is still open. (even though it is closed)I've search the net for the past hour, and can find no concrete information regarding this issue.Now imagine sales department creating 100 sales orders a day. they keep on having the issue to move the form back to the top.
View 5 RepliesI have a listview "CategoriesList" and i have a repeater "NewsRepeater" inside the listview "CategoriesList"
<asp:ListView ID="CategoriesList" runat="server" DataKeyNames="CatID" DataSourceID="CategoriesListODS"
EnableModelValidation="True">
[Code]....
how to pass the catID from the listview and make it as SelectParameters in ObjectDataSource "NewsRepeaterODS"?
[code]I want to print the parent item index inside the child repeater (rptAlternativas) in VB right in ITEM_INDEX_HERE marker. How can I achieve this?
View 1 RepliesHow will i close all the forms within my main form? Everytime I click on the menus of my main form,I'm setting my main form as MDI-Parent form and then loading a new form as it it is the child form if I'm not mistaken. I have a log-out menu, and what I want to happen is everytime I log-out all the forms within my parent form will be closed. How will I do it? Here are some of my codes.
[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]...
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?
View 1 RepliesI would like to know if its possible to start up a second windows forms inside the parent form. Ex: A button is pressed and a new form is showed. I would like to keep that new form inside the parent form, and have it not be able to go outside the parent form.
View 2 RepliesI'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" />
View 1 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 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]....
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.
View 6 RepliesIs there any chance to pass values from mdi parent to mdi child.
View 1 RepliesIn 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.
I am using a parent for with child forms and i have made the option to "Float" the child windows outside of the parent form and "dock" them back in if you want.I'm doing this with a button on the child form to float/dock it. On the other hand I'd like to use a checkable item on the menu to choose if they are docked or floated from the opening point.
View 6 RepliesIn 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 form with text boxes ,masked text boxes e.t.c there is a binding (data) source MytablebindingSource). when i open the form the on form_load event i use the following code
[Code]...
ive been trying to get statusstrips merging so i can click a label to bring the child form to the front when i have multiple childforms open. I have this code which does work but on closing it leaves the label on the mdiparent and also im struggling with the bring back to front code. i dont want it to open another form just bring it back to front. I have statusstrip set to visible false on my childform. heres some code for merging, this is in mdi parent:-
Private Sub Form1ToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Form1ToolStripMenuItem.Click
Dim NewMDIChild As New Form1
NewMDIChild.MdiParent = Me
[code].....
and some for bring back to front, this is in form1:-
Private Sub ToolStripStatusLabel1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ToolStripStatusLabel1.Click
Dim MDIChild As New Form1
[code]....
I want to use the same menu shortcut keys in a MDI child as in the parent...the problem is that the parent seems to receive the Event first and is calling his menu entry. The child (though it does have the focus) does never receive any event whatsoever...I can bypass this behaviour by adding a Textbox to the Menu, and the moment that one has the focus the menu shortcuts are working as expected (child gets it first, after that it's passed through to the parent).
View 1 Replies