invoice id Number auto generate in lable box / text box

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How to create auto generate number/ID in C# form?
when i click on save / ok button, the invoice number / id should get generated and the value in lable box / text box.
plz help me i am worried.!!

Posted 4-Jul-12 1:49am

uerur

Updated 4-Jul-12 21:23pm

2irfanshaikh

v2

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[no name] 4-Jul-12 7:57am

"plz" is not a word. "help me i am worried.!!" but not worried enough to ask a question? How do you expect anyone to know what you mean by an invoice number or ID? That is specific to your application.

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Tbone1983 · Answer 1 · 2012-07-04T02:37:00

Hi uerur

if you are happy with a unique identifier then you can use a guid.

you could try this code: I've added a label "label1" and a button "Ok" on my form and the click event is:

C#

private void ok_Click(object sender, EventArgs e)
       {
           label1.Text = Guid.NewGuid().ToString();
       }

kind regards

2irfanshaikh · Answer 2 · 2012-07-04T21:34:00

Solution 2

Get the Max invoice Number from the table and increment it by 1 and then set the value in the label or textbox

SQL

SELECT Max(ISNULL(InvoiceNo, 0)) + 1 FROM [TableName]

Posted 4-Jul-12 21:34pm