a question for agraham

[Ricky D]

Gday mate.

I'm converting the vb version of autocomplete into C# using VS2005.

this line in VB
If item.ToUpper.StartsWith(strg) Then

the StartsWith doesn't seem to be in C#

here is the VB code block
If item.ToUpper.StartsWith(strg) Then
found = True
Exit For
End If

how should I write this in C#?

regards, Ricky

[agraham]

Originally Posted by Ricky D

StartsWith doesn't seem to be in C#

It is, it is a method of the String class and so is language independent.

if (item.ToUpper.StartsWith(strg))
{
    dosomething();
}
else
{
   dosomethingelse();
}

[Ricky D]

what's the equivalent of Exit For ?

regards, Ricky

[agraham]

Originally Posted by Ricky D

what's the equivalent of Exit For ?

Break;

[Ricky D]

thanks again. Now to test tomorrow. Sleep time now!

regards, Ricky

[Ricky D]

Hi again agraham.

this is the keyup code for the internal textbox :

private void txtText_KeyUp(object sender, System.Windows.Forms.KeyEventArgs e)
{
string strg = txtText.Text.ToUpper();
string cboitem="";
bool found = false;
int jj=0;

System.Windows.Forms.MessageBox.Show("hey");
if (e.KeyData == Keys.Back)
{
e.Handled = true;
return;
}

if (mAutoCompleteOn == false)
{
e.Handled = true;
return;
}

for (int j = 0; j < cboCombo.Items.Count; j++)
{
cboitem = (string)cboCombo.Items[j];
if (cboitem.ToUpper().StartsWith(strg))
{
jj = j;
found = true;
break;
}
}

if (found)
{
txtText.Text = cboitem;
txtText.SelectionStart = strg.Length;
txtText.SelectionLength = txtText.Text.Length - strg.Length;
cboCombo.SelectedIndex = jj;
}
}

can you see why this isn't being fired when I type in the text portion of the control? I put the messagebox there for debugging.

regards, Ricky

[agraham]

Probably because you haven't added the event delegate to the textbox event in your constructor.

TextBox yourtextbox; // private variable
  ...
yourtextbox = new TextBox (); // in the constructor 
yourtextbox.KeyUp += txtText_KeyUp; // add a delegate to the event
  ...

[Ricky D]

again many thanks. It's harder than vb so what's the attraction to C#? Is it just that you have done C before?

In my formative years I started on Z80 processors doing assembly and turbo pascal. When Dos came along then windows I'd see code written in C that was so unreadable that it turned me off it way back then. No one would be kind enough to explain it in a simple way. Hence I like the "verbose" languages that came along like pascal and basic. I found cobol way too verbose and disliked it for being on the other end of the verbosity scale where c was least to cobol largest lol

I taught myself how to program and have seen clipper on pc, pascal on pc, Rally on Vax/VMS plus Cobol on same. In college I did a bit of Fortran too.

My how the landscape of IT has changed.

regards, Ricky

[Erel]

VB .Net and C# are almost identical. There are even many automatic code converters between the two.
For example: Convert VB.NET to C# - A free code conversion tool - developerFusion - the global developer community
Personally I prefer C# because of its "cleaner" syntax.

[Ricky D]

do you program B4ppc in C# for the desktop and device?

I can't get this autocomplete working in C# and can't see how to debug what's going on inside the dll

it's working in vb so I'll leave it at that I think.

Here is the code that's not working

if (found)
{
txtText.Text = cboitem;
txtText.SelectionStart = strg.Length;
txtText.SelectionLength = txtText.TextLength - strg.Length;
cboCombo.SelectedIndex = jj;
}

what it does is when I type W for World it brings back the World string and places the caret at the start of the text instead of at the end. It also doesn't select the orld part of the text.

regards, Ricky