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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.!!
Updated 4-Jul-12 22:23pm
[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.

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

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

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