Catch Enter Key

[feurich]

[csharp]

private void cboImportset_KeyPress(object sender, System.Windows.Forms.KeyPressEventArgs e)

{

// Catch the enter keypressed

if (e.KeyChar = Keys.Enter)

// {

// Check if ImportSet already exists if so select ImportSet.

// if ImportSet doesn' exists add it to ImportSet list.

MessageBox.Show(e.KeyChar.ToString());

// }

[/csharp]

 

Errors are:

- Cannot implicitly convert type 'char' to 'bool'

- Property or indexer 'System.Windows.Forms.KeyPressEventArgs.KeyChar'

cannot be assigned to -- it is read only

- Cannot implicitly convert type 'System.Windows.Forms.Keys' to 'char'

Edited July 27, 2005 by feurich

[IngisKahn]

That shouldn't even compile. Your if statement is invalid. ( == )

[feurich]

Sorry for that :eek:

 

But even with the == inplace it doesn't compile.

 

error is:

Operator '==' cannot be applied to operands of type 'char' and 'System.Windows.Forms.Keys'

 

I know I have to convert the e.KeyChar. But how.

In VB.NET you have the Asc() function but what is that in C#????

[thenerd]

Try e.keycode instead of e.keychar.

[feurich]

No e.KeyCode

 

I don't have e.Keycode in my intellisence...

Also on a lot of website it says that there must be a e.KeyValue in the event arg.

But I don't see it.

Any info on that?

[feurich]

ok found it

 

This is it....

 

if (e.KeyChar == (char)13)

 

Man, converting from VB.NET to CSharp isn't that easy

 

:o :o :o

[thenerd]

Are you sure? Try typing e.keycode anyway. I know I have it in vb.net.

[feurich]

Tried it

 

I tried it but when i compile the code it says:

'System.Windows.Forms.KeyPressEventArgs' does not contain a definition for 'keycode'

 

See my last post. That does the trick.

 

Thanks for the effort.

[Joe Mamma]

I am just guessing. . .

 

but does this work?

 

e.KeyChar.Equals(Keys.Enter)

[Joe Mamma]

actually it doesnt but this does.

 

bool isEqual = e.KeyChar == Convert.ToChar(Keys.Enter);

 

which I would prefer rather than the (char) cast of #13

[Joe Mamma]

also. . .

KeyCode is a member of KeyEventArgs but not KeyPressEventArgs.

 

FYI

order of events -

KeyDown (a KeyEventHandler)

KeyPress (a KeyPressEventHandler)

KeyUp (a KeyEventHandler)

[IngisKahn]

Why not e.KeyChar == '\r'

[Joe Mamma]

Why not e.KeyChar == '\r'

Only that I can never remember escape sequences. :)

[IngisKahn]

MSDN loves you :)

[Anil_hyd]

private void LoginForm_KeyDown(object sender, KeyEventArgs e)

{

if (e.KeyCode == Keys.Enter)

{

button1_Click(sender, e);

}

 

}:)