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forms visual basic .net -500
i am writing a program in visual studio .net
i have five forms made (form1,form2,form3,form4,f
i want the code to open a given form by name.
for example to give the "form2" in a textbox
and then create an instanse of the form "form2" as x and then open the x on the program .
thanx
i have five forms made (form1,form2,form3,form4,f
i want the code to open a given form by name.
for example to give the "form2" in a textbox
and then create an instanse of the form "form2" as x and then open the x on the program .
thanx
Asked:
2 Solutions
Unfortunately there is no direct way to do this in VB.NET you have to perform checks on the contents of the textbox
like this:
'**********************
Select Case TextBox1.Text
Case "form1"
Dim frm1 As New Form1()
frm1.Show()
Case "form2"
Dim frm2 As New Form2()
frm2.Show()
.........
End Select
'**********************
like this:
'**********************
Select Case TextBox1.Text
Case "form1"
Dim frm1 As New Form1()
frm1.Show()
Case "form2"
Dim frm2 As New Form2()
frm2.Show()
.........
End Select
'**********************
This is result of my test. Create new VB.NET Windows application. Add Button1 and TextBox1 to Form1. Add new Form2 and Form3 to the project. This is Form1 code:
Imports System.Reflection
Imports System.Text
...
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim a As [Assembly]
Dim f As Form
Dim s As StringBuilder
Try
a = [Assembly].GetExecutingAss
s = New StringBuilder
s.Append(a.GetName().Name)
s.Append(".")
s.Append(TextBox1.Text)
f = CType(a.CreateInstance(s.T
If f Is Nothing Then
MessageBox.Show(Me, "Type not found")
Else
f.ShowDialog(Me)
End If
Catch ex As Exception
MessageBox.Show(Me, ex.Message)
End Try
End Sub
Type Form2 or Form3 in the textbox and press the button.
Imports System.Reflection
Imports System.Text
...
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim a As [Assembly]
Dim f As Form
Dim s As StringBuilder
Try
a = [Assembly].GetExecutingAss
s = New StringBuilder
s.Append(a.GetName().Name)
s.Append(".")
s.Append(TextBox1.Text)
f = CType(a.CreateInstance(s.T
If f Is Nothing Then
MessageBox.Show(Me, "Type not found")
Else
f.ShowDialog(Me)
End If
Catch ex As Exception
MessageBox.Show(Me, ex.Message)
End Try
End Sub
Type Form2 or Form3 in the textbox and press the button.
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If so, all you need to do is:
formname.show
So, if you want form1 to be opened:
form1.show