IDE :: Changes About A Form When You Set Its Form.mdiparent Property?
May 22, 2012
I have a video control AxLiveLib.AxLiveX that displays video from a networked surveillance system. I'm trying to integrate this system into an MDI project, but when I set the form.mdiparent property on the form that has the video control, I no longer display video.I have a status bar at the bottom of the form that tells me connection status and current bitrate, so I can see that I am connected to the system, and if I comment out the 'FrmV.MdiParent = me' line on the parent form, I can see the video through the control.My question is what changes about the child form when you set it's MDIParent property? for example does the mdi parent take control over the forms refresh or draw functions?
code:
Dim FrmRm As New FrmViewRoom
FrmRm.RoomNumber = 1
FrmRm.Rec_NewMaxBounds = [code].....
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Sep 16, 2009
i am asking about using the progress bar into the status bar to move when i load any child form inside the MDIParent form.
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Feb 23, 2010
In VB 2008, I have a Parent form with a combo box on it. There is a child form also with a combo box on it. I want to be able to change the values on the child form based on what the user selected from the main form. The user launches the child form from a toolbar on the Parent form. The following code is run:
[Code]...
What I want to do is if the Parent's combo box has "Red", "Blue", "Green" values and the user selects "Green", the child form's combo box(With the same values) will also change to "Green". (I do not need to change the Parent form if the child form changes.) I've tried changing the Child's combobox from the combobox's change event on the Parent form, and the code runs, but nothing changes on the child form.
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Jun 22, 2010
In MDIParent, in my formload in MDIParent, one form is load. And i want the form when i click a button, there is another form will be loaded INSIDE the MDIParent?
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Oct 31, 2011
Why is my MDIChild form not being displayed in my MDIParent form? I want to click a button on form frmStudyResultsFilter which will then display an MDIContainer form frmCalculatedResults (maximized). When frmCalculatedResults is shown I want a small dialog modal form to be in the center of frmCalculatedResults. For some reason frmCalculatedResults will not show on top. Plus I get this error"Form that is not a top-level form cannot be displayed as a modal dialog box. Remove the form from any parent form before calling ShowDialog." Here is my code:
Public Class frmStudyResultsFilter
Private Sub btnCalculated_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCalculated.Click
Dim frm As New frmCalculatedResults
[code]....
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Sep 2, 2010
how can i dock a form into the MDIParent form?
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May 24, 2012
I`m developing a desktop application using Visual Studio 2005 and a vb.net code.I`m using one MDIParent form 'frmMDI' and about 20 Child Forms. In the frmMDI there is a MainMenuStrip that contains 20 ToolStripMenuItems each one used to load a corresponding child form through this [code]So, that code is responsible to load a child form. Now what I`m facing after the loading of the child form is that the behavior of the controls of that child form is not so normal. you can`t set the cursor to the end of the text in a textbox.
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Aug 22, 2009
Has anyone had any luck with having different window states with multiple open child forms?for example if you have a single child form opened and say it is maximized.then open a second child form as normal, the first form will then be set to normal.all the open child forms will mimic the newly opened forms state.and i believe they will mimic when making some changes to one forms state.the others will follow.i have not had luck keeping this from happening in most situations.
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Dec 14, 2010
having different window states with multiple open child forms? for example if you have a single child form opened and say it is maximized. then open a second child form as normal, the first form will then be set to normal. all the open child forms will mimic the newly opened forms state. and i believe they will mimic when making some changes to one forms state. the others will follow.
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Feb 22, 2009
I have two MDIParent with one form(MDIChildren). in my mdichildren i have a statustrip with splitbutton, and one of my split button is assign to do an event..how can i do an event with my splitButton in different MDIParent? For example:
I have to open a MDIParent called MDIparent1 (of course it loads of my mdichild automatically)
trying to click a splitbutton will success..but i try to open a another MDIparent called MDIparent2 with my same mdichild and try to click a splitButton will not be success.
[Code]...
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Jun 16, 2009
I have a MDI Application with a MDIParent form and two Child forms called form1 and form2. What I need to do is. Launch the third party software from MDIparent form and if it already open then not to open again.
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Nov 20, 2010
i have a program with MDI parent and child. initially, the program will call a child e.g. ChildMain. on this child form, 2 processes are run. the 2nd is ran on a backgroundworker. the backgroundworkder in created through code. the process in the background worker is to create another childform but i'm having problem setting the MDIParent of this child form since VS is saying some sort of cross-thread issue.
[code]...
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Feb 5, 2012
Anybody know a way to detect and set the form size in the child and MDIParent forms?
I'm having all kinds of problems from scroll bars popping up, to can't get the form to fill the parent. Pretty sure I have tried every possible combination in the forms properties 10 times.
I'm really getting tired of beating myself against this. Anybody seen a good tutorial on the finer points of MDIparent / MDI Child page size, etc.
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Aug 10, 2009
I would like to display the autoscroll bar on MDIParent form when user moves MDIChild form. I set the autoscroll to false on the MDIParent form, but it does not display the scroll bar. What should i do?
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Jun 9, 2011
I have developed a small application. It has a MDIParent form on which the other childforms are displayed. I have a Panel on the MDIParent on which there are buttons to call up the MDIChild forms. Now my issue is, when anyone of the buttons on the MDIParents form Panel are clicked, it should check if another Childform is display, if it is then it (the active childform is closed) and the new form will be displayed. This part is working fine from the code below. However, when there are no active MDIChild form on the MDIParent form and if the button is clicked, the 'Else' part of my code below is executed. This generates the error as 'Object reference not set to an instance of an object'. So what is wrong with my code below?
Private Sub btnExecutive_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnExecutive.Click
Dim MDIChildForm As New frmExecutiveInfo
[Code]......
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Apr 4, 2012
Looks like a dumb question, but I tried the following (where "Me" is a MDIParent form):
Dim frmNotif As New frmNotifica
With frmNotif
.MdiParent = Me
[Code].....
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Aug 31, 2010
is my main form.and frmpayable is frmmain's child from.in the frmpayable my code is
Dim frmreleasing As frmPostap
frmreleasing = New frmPostap(Me, release_record)
frmreleasing.MdiParent = Me.MdiParent
[code].....
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Aug 13, 2010
If this has been answered elsewhere can someone point me in the right direction. Instead of having visual studio's update screen i want to have my own screen pop up within my mdiparent form and have abit on the popup where i can display the changes that have been made (i can try and work this out with text files etc.)
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Jun 26, 2011
I am having a toolstrip in the mdi form which contains save, update delete and clear buttons. The child form is having save, update, delete and clear as public sub routines , and client form will not have any standard buttons, I will click the respective button in the parent tool window which should call the child forms function.
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Mar 31, 2009
Using a plugin architecture, i created a Form Class that holds the Mdi Form. it has menustrip, toolstrip and statusstrip.
child forms are created as class and are loaded into the Mdi Form at runtime.
using interface, i was able to execute subs and functions of a child in the Mdi Form and vice versa.
now i need to change property values.. to be exact, i need to change the enabled property of the toolstrip buttons depending on which child form is activated using the form_activated event of the child form.
the problem i now have is how to change the property of the toolstrip item in the Mdi Form.. should i be using interface on this as well by creating subs in the interface and have the Mdi Form implement this interface?
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Feb 20, 2012
I have a custom form that I use instead of msgbox for a number of reasons. The initial reason was to keep the message centered on it's parent rather than the screen. There are many articles about this but I still have not found an elegant way to get access to the Parent's properties from inside the Child without passing them in (by one way or another).
In the child form the me.parent, me.parentform are not instantiated and apparently can not be used.
The point is to have this form be totally encapsulated with the logic being self contained. This is not an MDI child, and I do not want it to be due to the limitations on MDI children.
My current workaround looks like this I use a ShowMsg Function in my MyMsgBox form which looks like this:
[Code]....
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Apr 2, 2012
i have a form and i want to design it according to how it was generated for example if it was opened by button 1 then set xx =xx etc
how can i determine how the form was called?
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May 11, 2010
I have two forms, say Form1, Form2
Form1 has one textbox and one button, Btn1 when clicked, it opens Form2 as dialog.
Form2 has one textbox and one button too.
First I click on Btn1 to open Form2 as dialog. And when I click on Btn2 on Form2, I want the text in the Textbox2 to be copied to TextBox1. I know it could be done by Public Property Get, Set but I am stuck.
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Mar 30, 2009
I basically want to be able to set a property for all textboxes on a specific form. Say, I want to set the wordwrap-property to true on all textboxes. How could this be done?
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May 15, 2012
In Windows Forms (Vb.net) how can I access the properties without instance (new) ?Form1.Property = "" ? the property deceleration is not static? what is called this way of deceleration?While you can't access Class1.Property!
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Sep 20, 2010
How can I add a new property to a button or a form or any thing else in the properties window?
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Apr 21, 2009
I have two forms, an mdi parent and an mdi child. Each instance of the mdi child has an array of graphicspaths. I create the first instance of the mdi child form and add several graphicspaths to the array. I create another instance of the mdi child form and add several different graphicspaths to that array.
[Code]...
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Apr 11, 2012
I've got a property in my class that I have given the task of holding the username of the person that logged in and I would want to access that username in another form another time. How do I go about this?
This is the code for my property:
Private _LogInUser As String = String.Empty
Public Property LogINUserName() As String
Get
Return _LogInUser
[Code] .....
This is how I am assigning my value to the property in my login form
'Private comm1 As CommManager = New CommManager' the new instance of the class
Dim sql As String = "SELECT reference,UserName,UserPassword,UserCompany FROM Users WHERE UserCompany = '" & cmbCompany.Text & "' "
Conn.Open()
Dim dt As DataTable = New DataTable
[Code] .....
How I expect to get my value
Label11.Text = comm1.LogINUserName
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Dec 15, 2011
I have a combo box and a property grid in a form. The combo box contains 2 items. If one item is selected, two properties are listed in the property grid. These properties should have a dropdown that contains a list of items. I have two string arrays that contain the values for these properties. Can I use one TypeConverter that inherits StringConverter for these lists to be displayed in two different properties? That is, with one TypeConverter class, can I populate both the lists? I will also have to do the same with the other items in the combo box.
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Jan 12, 2011
I am using Visual Basic 2010 Professional Edition. I have tried all day to create and add a property to the Windows form frmCard. I need to create a CustomerID which is a system.Guid but it needs to accept a string value from a DataSet and be able to pass it as a system.
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