RE: How to call Refresh Form?

[sjchin]

RE: How to call Refresh Form?

 

Hi guys, If i have 2 form,name it as Form1, Form2. In form1, assume that it display summary of all records, when i call form2 to update somthing and will back to form1, how can i call form1 to refresh my result? Assume that in form1 i have a sub routine,which used to reload all my result to listview. How can i call form1's sub routine in form2 to reload my listview? Assume that form1 is show at the back of form2.

Beside this, how can i do a call new form2 and not allow it reopen again? In VB6, we have form2.show vbmodal, so what can do in vb.Net?

Thanks and wait for prompts reply.

[divil]

You can show the second form with its ShowDialog method:

 

Dim f As New Form2()
f.ShowDialog(Me)

 

Then from the second form, you should be able to access the Owner property, cast it to the correct type and run a subroutine on it:

 

DirectCast(Me.Owner, Form1).MyMethod()

[sjchin]

divil, Thanks you for your help.

 

Beside this, I still have other question, wish you can do me a favour. :>

 

In VB.Net, beside using showdialog, how can i know which form is calling from which form?

Example:

Assume i have 2 form, Form1 and form2

 

Form1 contain textbox1

form1 contain sub routine call setValue (This routine will set textbox value)

 

In form1 ,i will write:

Dim f2 as new form2

f2.show

 

In form2, i wish to call form1 value, but if i using :

dim f1 as new form1

f1.setvalue

f1.show

 

it will appear new form1, which not overwrite the exisitng form1, so may i know how to solve this problem? using showdialog will force user to close form2 before goto form1, i want allow user to click on form1 instead close of form2.

 

Beside this,does any command can make the form2 show only once form? I have try click on the form1 button twice, it will appear 2 form2.

The way i using is

 

'--> on click button of Form1

dim f as new form2

f.show

Thanks and wait for prompts reply :>

[divil]

I usually pass a reference to the "creating" form in the new form's constructor. That was the created form can store this reference and therefore call back to the main form if it needs to.

 

As for your other question, you can just keep a reference around in the first form and see if it's set or not.