Form.show() Loosing Context In Originating Form?
Nov 8, 2011
This is a database app where I am trying to check for possible duplicates and give the user the option to keep the new record or assign to an existing record.In form1 the user will enter data into a textbox. I use this information to build a bindingsource.filter. Then I call another form (form2.show()) to display results to user and get user response. This part all works correctly.
The problem is that as soon as form2.show() executes, I loose the contents of the textbox - and it appears that I am no longer in the bindingsource.addnew() method.
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Sep 12, 2011
Window based application:I am populating gridview in a child form on load event as well as formatting gridview cell colors.Data is picked-up from parent form grid(Grid to datatable) by setting up global public datatable variable in child form.
Gridview formatting works fine for the first run.All the future runs the gridview formatting function in the child form is executed but the color changes are not reflected on the grid.
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Jan 26, 2010
I'm new in .Net and I have an application with windows form "LOGIN" When users enter the user and password and click "ok", then if user passes validation then I have the code Show(MDIMainMenu) (I'm trying to open an mdi form), but I receive the following error: "Form that is already visible cannot be displayed as a modal dialog box. Set the form's visible property to false before calling Show. Error Number 5"
[Code]...
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Nov 26, 2009
I have two forms in an application. One is he background and then I show another keypad form called with the show() method (not showDialog) because I need to perform some validations on btn click.
The kepad has 10 buttons and an Enter Button. The problem is that the form keeps loosing focus (I checked this with a messagebox which keeps poping up once for focus=true and again for focus=false, it continuously keeps losing and gaining focus) so it does not process any keypress events untill i click somewhere on the form. I tried using me.focus() in form load event but to no avail. The forms TopMost property is also set to true.
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Jan 14, 2010
I have a program that uses two forms. The program opens to the Main form, and the user can navigate to the other form from the Main form through use of a button. Here's the way I've currently written it: When the Main form loads, it declares and instantiates the other form during the load procedure. When the user presses a button, the second form is displayed by means of the ShowDialog method. On the second form, there is a Return to Main Screen button which closes the second form, bringing the user back to the Main form.
So, here's the structure of the code:
Code:
Public Class frmMainForm
Dim frmSecondForm As New SecondForm
Private Sub btnSecondForm_Click(blah, blah, blah) Handles blah, blah, blah
[CODE]...
Here's my reasoning: Originally, I wrote the code so that a new instance of the second form was created every time the button was pressed. The problem was that whatever data was displayed on the second form, previously, was lost when the user returned to it a second time. Since the user would be switching back and forth between these forms, frequently, I needed that data to persist.
What is the best practice for accomplishing this:
1) Declare and instantiate the second form on program start, as I have done, and use the button simply to show the form?
2) Declare and instantiate the second form each time the button is pressed but maintain the variables on the Main form and pass them ByRef to a custom constructor for the second form? Is this even possible?
3) Something else?
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Nov 11, 2011
Im trying to create a stopwatch in one form and another form show my progress bar using a combo box for mins and seconds to show the progress bar on form1 1
[Code]...
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May 12, 2009
I am trying to use a progressbar to show on main form and then finish when next form is loaded, I have got this code.
1. When I click on button, it must open next form, but the next form must only open when the data in my list box has been loaded from Access Databse. When I run my program, it only shows the progressbar and don't open the next form.
Main form code:
Public Class Main
Dim PB As ProgressBar
Private Sub main_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
End Sub
[CODE]............................
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Nov 12, 2009
Using the code below:
Private Sub ShowDropDown()
Using f As New DropDownForm
f.Visible = True
Do While f.Visible
Application.DoEvents()
[Code]...
This was a guess, after looking at the Form.ShowDialog method in reflector.My question is, is there a managed call I can make to acheive the same result, and what does a button click do that other clicks don't?
ETA: The problem does not occur if I open the form using a key.
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Mar 5, 2009
Iam creating an application. i have a main form it has 5 buttons i have created 5 more forms. my aim is to show a particular form for every button the form is opened in a new window i dont want to open in a new window it should be embed in the main form when i click anthor button it will show the related form in place of previous form
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Mar 5, 2009
Iam creating an application.i have a main form it has 5 buttons i have created 5 more forms.my aim is to show a particular form for every button the form is opened in a new window i dont want to open in a new window it should be embed in the main form when i click anthor button it will show the related form in place of previous form?
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Sep 4, 2009
When I use
Me.Close()
Form1.Show()
It closes the whole app.
How would I change it so that it only closes the current form while opening a new one? EDIT: I put [Not Resolved] Because I accidently pressed the resolved thing
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Oct 14, 2009
i used to write the code to show another form and unload the current form it always told error on UNLOAD form2.show unload me Do i have to use the code :
.Dispose()
or is there another suggestions
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Dec 5, 2010
I have two forms , and I want write a code like ( form2.show=true & form1.show.false)
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Jul 25, 2011
I have a series of methods being called for my networking code. An event gets fired from the networking thread. Inside this event, which I've hooked into from a singleton class, I route messages to form level methods which they register on form load to handle certain messages they care about. Inside of these form message hooks I need to close the current form (which I was able to do) but also show a different one (which is giving me the trouble).
[Code]...
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Jun 11, 2011
I want to use a form in vb.net 2010, so when I click on a button ,it must show me the info of a specific row in Exel and display info of that row in a text box.
eg.
Name Surname phone
Koos Leeds 08212122392
How do I start with this, any samples.
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Dec 18, 2009
why I need to instantiate a form instead of form.show?
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Sep 28, 2009
Private Sub HideShowTest_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Me.Hide()
[code].....
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Oct 26, 2010
I have a dual monitor setup on my computer. My program has multiple forms. I've designed the program to check which monitor the main form is currently on and to open the secondary forms on the current monitor. When the main form is on the primary monitor the secondary forms open as FormWindowState.Normal which is the design-time setting for the secondary forms. If the main form is on the secondary monitor and I click to open a secondary form then the secondary form is to be displayed as FormWindowState.Maximised.
[Code]...
So I moved the Form.Show line to after the Form.WindowState line. This works fine when the Form.Show process is very quick. The problem is that one of the secondary forms downloads some information from the internet so it takes about a second to finish the Form_Load process. When I had Form.Show first the form would not appear on screen until the Form_Load process is complete, so the delay was in the form appearing at all which is how I prefer it. With Form.Show last the form appears on screen immediately but appears mostly blank and unresponsive until the Form_Load process completes.
I would prefer that the form not appear at all until the Form_Load process is complete but I would like it to appear in an already Maximised state. Is this achieveable? It doesn't seem that complicated but I just can't figure it out.
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Jan 8, 2012
I need to disable the form's context menu, when you right click on a form's caption bar a context menu appear.
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Feb 17, 2009
How does one access a form's context menu, that is, the menu you get when you right-click on the top bar of a form (it usually contains Restore/Move/Minimize/Maximize/Close options)?
I'd like to be able to add and possibly remove a couple of options.
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Jun 5, 2012
I'am trying to find my context menu strip in my form but my code doesnt seem to displayed my desired output...here is my code:
[Code]...
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Feb 13, 2009
I have a MDI app. At the moment I merge my context menu from my child to the parents tool strip menu. But now I don't get a context menu show in my child form?
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Jul 18, 2010
Right basically if a checkbox in my application is checked "Close to system tray" then my form will cancel close and send to tray instead
[Code]...
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Dec 9, 2010
Background Story: My program contains a form and 3 buttons (Add New, Delete, Edit...etc), and it works perfectly. Recently, I decided to add menuStrip, since it helps end-user to work faster. So, I put the menu strip coding.
However.....Sometimes, it works normally. But sometimes it works very strange.
Strange 1. When I chose the "Add New" item in the menu, the Add New Form will be showing up, and then I clicked on the Cancel button in the Add New Form. The Form kept showing up repeatedly. But sometimes, it works normally. (Note: Add New Form's Cancel button contains one line simply coding, it's "me.close")
Strange 2. When I chose "Delete" item in the menu, the MsgBox showing up (since I coded it and it's a warning message to end-users), but the MenuStrip KEPT showing up, so the MenuStrip overlapping the MsgBox. (I expected the MenuStrip disappear in this situation)
Is some codings I have done incorrectly?
Here below is the coding:
CODE:
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Mar 22, 2011
I have 10 textboxes on a windows form. Each textbox has the same contextmenu. Say they are named textbox1 - textbox10. What I need is when I right click in one of the textboxes I need to capture the name of the textbox in which the contextmenu was called. So if I am over textbox2 and right click for contextmenu then select menu item #2 in the click event I need to capturethe textbox control I called the contextmenu from (textbox2) so I can send that name to a function to process my other code.
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Jun 8, 2011
how do you show information from a datagrid cell to show up in a text box in another form, this is for a college project.
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Apr 20, 2010
I've come across a situation where I try to run a simple line of code in a method Dim res As DialogResult = frmOptions.ShowDialog()but nothing happens. The dialog box will not appear. If I run this method from another location in the code it executes fine (i.e. displays the form in dialog mode and code executes fine thereafter). Hence, it may be the way in which I arrive at this code that is causing my problem, but I cannot see to find what is wrong.
When I pause the debugger the line of code is highlighted in green but I can't see to step over it or into it what may cause this to happen, or what I should be looking for that might be causing the problem??
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Apr 7, 2009
Dim res As DialogResult = frmOptions.ShowDialog()but nothing happens. The dialog box will not appear. If I run this method from another location in the code it executes fine (i.e. displays the form in dialog mode and code executes fine thereafter). Hence, it may be the way in which I arrive at this code that is causing my problem, but I cannot see to find what is wrong.
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Sep 4, 2009
i have a form with a webbrowser in it, now below is the code i use to generate my context menu, however it only works on the form NOT over the web browser, that has its own right click menu. is there a way to disable the browsers right click and have my own work over the whole form? [Code]
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Apr 27, 2010
I have a multiple form application with a listbox on each form. I want to be able to select an item in one listbox on one form and then click a button and it show up in a listbox on another form.
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