Barcode Scanner in C#

[SaltyDawg]

I have an application in C# which uses a dialog box with a textbox and a button to submit. A barcode scanner is used input the data. Currently after the scan the user must use the mouse to click the submit button.

 

What can I do to submit to data automatically after scanning. I know there is something about a carriage return character, but I have no idea what to do. If I scan the barcode with any other program (even WordPad) it would carriage return to the next line, but its not working in my C# app. Is there something I need to add to my code or a property I need to set to the textbox or button? Thanks.

Edited March 24, 2008 by SaltyDawg

[PlausiblyDamp]

Could you not handle the keypress or keyup events for the textbox and if you detect a carriage return then act on it?

[SaltyDawg]

Could you not handle the keypress or keyup events for the textbox and if you detect a carriage return then act on it?

 

Sounds good. Now how could I detect the carriage return?

[techmanbd]

Below is the event when doing a kepress And you will also need to change the code in Designer Code for the event handler of the test box

 

 

private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
	{
		if(e.KeyChar == 13)
		{
			MessageBox.Show("ENTERED");// You code here
		}
	}

 

Change this

this.textBox1.TextChanged += new System.EventHandler(this.textBox1_TextChanged);

 

to this

this.textBox1.KeyPress += new KeyPressEventHandler(this.textBox1_KeyPress);

[SaltyDawg]

the KeyPressEventHandler method is not being recognized.

 

Tried:

this.txtScanUserId.KeyPress += new System.KeyPressEventHandler(this.txtScanUserId_KeyPress);

 

By the way, like that Gandhi quote one of my favorites I try to live by.

[techmanbd]

after "new" take the system out. It is just KeyPressEventHandler

 

Yes, on the quote I heard it one day on Criminal Minds. When they start an episode, they do a famous quote and I heard that. I Have always thought this way, but the quote was the perfect way to say it.

[SaltyDawg]

Got it:

 

I tried System.Windows.Forms.KeyPressEventHandler and it works.

 

Thanks alot for your help

 

I guess if I had declared "using System.Windows.Forms" it at the top KeyPressEventHandler would have worked

[SaltyDawg]

Yes I read that quote years ago, I was in the Army in Somalia at te time.

[techmanbd]

Got it:

 

I tried System.Windows.Forms.KeyPressEventHandler and it works.

 

Thanks alot for your help

 

I guess if I had declared "using System.Windows.Forms" it at the top KeyPressEventHandler would have worked

 

 

AH yes, I have the "using.." at the top. When I start a new program it put it in.