change some text on another form

[cdoverlaw]

I want to change some text on a already open form using another form

I tried declaring the form by using Dim frmBrowser As frmBrowser

Private Sub cmdUpdateBmk_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdUpdateBmk.Click
       If txtSiteName1.Text = "Site Name" Then
       Else
           frmBrowser.bookmark1.Text = txtSiteName1.Text
       End If

       If txtSiteName2.Text = "Site Name" Then
       Else
           frmBrowser.Bookmark2.Text = txtSiteName2.Text
       End If

       If txtSiteName3.Text = "Site Name" Then
       Else
           frmBrowser.Bookmark3.Text = txtSiteName3.Text
       End If

       If txtSiteName4.Text = "Site Name" Then
       Else
           frmBrowser.Bookmark4.Text = txtSiteName4.Text
       End If

       If txtSiteName5.Text = "Site Name" Then
       Else
           frmBrowser.Bookmark5.Text = txtSiteName5.Text
       End If
   End Sub

This is the buttons click event which updates the bookmarks listed on the other form, (this is on frmBookmarks)

 

This is the current error:

An unhandled exception of type 'System.NullReferenceException' occurred in WebHost Toolbox 2.00.exe

 

Additional information: Object reference not set to an instance of an object.

[Joe Mamma]

thre are a few ways to skin this cat. . .

 

c# code here

 

Given your design, pass the browser form to the bookmark form on contruction:

c# code here

class FormBookmarks: Form
{

FormBrowser _browser;

// Constructor Takes a FormBrowser parameter
public FormBookmarks(FormBrowser browser): this()
{
 _browser = browser;
}


private cmdUpdateBmk_Click(object sender, EventArgs e)		
{
 If ( txtSiteName1.Text != "Site Name")
		_browser.bookmark1.Text = txtSiteName1.Text;

 If ( txtSiteName2.Text != "Site Name")
		_browser.bookmark2.Text = txtSiteName2.Text;

 If ( txtSiteName3.Text != "Site Name")
		_browser.bookmark3.Text = txtSiteName3.Text;

 If ( txtSiteName4.Text != "Site Name")
		_browser.bookmark4.Text = txtSiteName4.Text;

 If ( txtSiteName5.Text != "Site Name")
		_browser.bookmark5.Text = txtSiteName5.Text;
}
}

 

in you browser form, create the bookmark form passing the browser form in the constuctor:

 

FormBookmark frm = new FormBookmark(this);

 

 

 

 

What is a bookmark? Description and URL? If so, could they be stored in a DictionaryEntry? Can your List of bookmarks be a DictionaryList?

[cdoverlaw]

ok how do i do this in visual basic .net

[Joe Mamma]

Class FormBookmarks
  Inherits Form

  Dim _browser As FormBrowser

  ' Constructor Takes a FormBrowser parameter
  Public Sub New(ByVal browser As FormBrowser) : Me()
		_browser = browser
  End Sub


  Private Function cmdUpdateBmk_Click(ByVal sender As Object, ByVal e As EventArgs) As Private
		If (txtSiteName1.Text <> "Site Name") then
			  _browser.bookmark1.Text = txtSiteName1.Text
		end if
		 
		If (txtSiteName2.Text <> "Site Name") then
			  _browser.bookmark2.Text = txtSiteName2.Text
		end if 
		If (txtSiteName3.Text <> "Site Name") then
			  _browser.bookmark3.Text = txtSiteName3.Text
		 end if
		If (txtSiteName4.Text <> "Site Name") then
			  _browser.bookmark4.Text = txtSiteName4.Text
		 end if
		If (txtSiteName5.Text <> "Site Name") then
			  _browser.bookmark5.Text = txtSiteName5.Text
		end if
  End Function
End Class

 

see how much nicer the C# code looks????

[Denaes]

ok how do i do this in visual basic .net

 

C# to VB

 

VB to C#

 

These are gold.

 

They let you convert code from C# to VB and reverse.

 

This lets you convert any C# code to VB, so you can ask for help in any fashion and not need to rely on others to translate it to them.

[sjn78]

Im trying to do a similar thing, but the above won't work for me.

 

I have frmMain & frmSplash

 

On frmSplash there is a lblLoading label

 

In frmMain I have a loading routine that loads the interface and sets up the menus while the splash screen is being shown.

 

void startup()
{
   Form fSplash = new frmSplash();

   fSplash.Show();
   fSplash.BringToFront();

   Application.DoEvents();
		
   if (connectionGood() == false)
   {
      MessageBox.Show("Database not present");
   }	

   causeWait();   // Causes a short delay

   fSplash.Dispose();

}

 

I want to use the label on the splash form as a progress indicator showing what it is loading etc.

 

Now in vb, you could just say fSplash.lblLoading.Text = Whatever and I find in C#, this is not available.

 

I have tried setting the label to public and I still can't access it.

 

So, how to do this??

 

Thanks

[ilya2]

Try to declare form like this:

 

frmSplash fSplash = new frmSplash();

 

You must leave the label public, however, I would recommend you not using controls on another form directly. Instead, create public properties in splash form that modify the contents of its controls.

[sjn78]

Yeh thanks. I figured it out a while ago, but didnt get back to posting.

 

Pretty obvious mistake, declaring it as a Form, so the label wasn't there, but declaring it as frmSplash and the label shows!!

 

Thanks anyway