_ _ erkimt manage Multiple WindowsForm SplitContainer ____ qstntxt _

I have multiple windowsforms inside a SplitContainer, one of them, I have a ListBox.

That is, outside the SplitContainer, on Form1, has button, when I click it, I want to add a text in the ListBox inside the SplitContainer on Form2

When I click the button, nothing happens! < Here is the error.

Form1Load:
%pre%
Button1code(ERRORishere):
%pre%
____azszpr94312_
Of course it will not add, you are using %code% as if it were a static member, when re-creating the object with %code% will appear the item that you defined. It's like a pre-addition.

To solve this you should create a reference to the created member, follow the example below:
%pre%
To add the item to the ListBox, do the following:
%pre%

Question

_ _ erkimt manage Multiple WindowsForm SplitContainer ____ qstntxt _

I have multiple windowsforms inside a SplitContainer, one of them, I have a ListBox.

That is, outside the SplitContainer, on Form1, has button, when I click it, I want to add a text in the ListBox inside the SplitContainer on Form2

When I click the button, nothing happens! < Here is the error.

Form1Load:
%pre%
Button1code(ERRORishere):
%pre%
____azszpr94312_
Of course it will not add, you are using %code% as if it were a static member, when re-creating the object with %code% will appear the item that you defined. It's like a pre-addition.

To solve this you should create a reference to the created member, follow the example below:
%pre%
To add the item to the ListBox, do the following:
%pre%

___

score 1 · Accepted Answer

Of course it will not add, you are using Form2.ListBox1.Items.Add as if it were a static member, when re-creating the object with Form2 will appear the item that you defined. It's like a pre-addition.

Tosolvethisyoushouldcreateareferencetothecreatedmember,followtheexamplebelow:

FriendWithEventsform2addAsFormPrivateSubform1_Load(senderAsObject,eAsEventArgs)HandlesMyBase.Loadform2add=NewForm2()'Criadoareferênciasemi-públicadoobjeto'form2add.TopLevel=FalseSplitContainer1.Panel2.Controls.Add(form2add)form2add.Show()...

ToaddtheitemtotheListBox,dothefollowing:

form2add.ListBox1.Items.Add("Texto a ser adicionado")

1 answer