自动在标签框/文本框中生成发票编号 [英] invoice id Number auto generate in lable box / text box

问题描述

如何以C#格式创建自动生成的编号/ID?
当我单击保存"/确定"按钮时，应生成发票编号/id，并在标签框/文本框中输入值.
请帮助我，我很担心.
如果您对唯一标识符感到满意，则可以使用GUID.

您可以尝试以下代码:我在表单上添加了标签"label1"和按钮确定"，而click事件为:

 私有  void  ok_Click(对象发​​件人，EventArgs e)
       {
           label1.Text = Guid.NewGuid().ToString();
       }

亲切的问候

从表中获取最大发票编号并将其递增1，然后在标签或文本框中设置值

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

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.!!

解决方案

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

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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