Help: MDI form & ChildForm (with show dialog)

I has 4 form
1. Main.vb (IsMdiContainer = T)
2. Form1.vb (has textbox1 , Button1)
3. Form2.vb (Has button1)
4. Form3.vb ( has textbox1, button1)

i start with Main.vb, and show Form1.vb (
code :
dim frm1 as new Form1
frm1.MdiParent = Me
frm1.show()

at Frm1 i has 1 textbox (textbox1) and button1, if i clickk button1, form2 show with dialogform
code:
at button1 click
form2.showdialog()

in form2, i has button1 if i click, form3 show with dialogform too
code
form3.showdialog()

in form3 i has textbox1. and button
if i clock button1. i'll put textbox1 value into form 1 textbox.
code :
at button1 click.

form1.textbox1.text = me.textbox1.text


but the textbox1 in form1 not has value ?
anyone help me ?


thz

Default instances strike again. In the case of Form2 and Form3 you are displaying the default instance, yet with Form1 you are explicitly creating an instance, but then you're trying to display text on the default instance. You need to be consistent: either use default instances all the time or not at all; don't mix and match.

Follow the Blog link in my signature and you'll find a post all about default instances. You should read it.

thanks alot :):):):):):blush: