使用c＃自动增加字母数字

问题描述：

我正在尝试在文本框中添加ID。它应该是自动生成的& Alphanumaric。

我写了下面的代码&它用于获取下一个id，但是当表有一些记录时，它会自动从表&中获取最后一个id。然后递增一，ID格式应该是LEL5-1，LEL5-2，LEL5-3 ....等等。

I am trying to add ID in text box. it should be auto-generated & Alphanumaric.
I have written below code & its working for taking next id but when table has some records it automatically take last id from table & then increment by one and ID format should be LEL5-1,LEL5-2,LEL5-3....so on.

static int EJDS_id = 1;
        string code;

 private void JDF_Load(object sender, EventArgs e)
        {
            
            EJDS_id = EJDS_id + 1;
            txtjobno.Text = "LEL5-" + EJDS_id.ToString();
                     

        }

请帮助

Please help

答

检查一下：向您的数据库询问该唯一ID [ ^ ]

如果您的数据库列是您插入的自动增量值，例如。 LEL5-1，LEL5-2，LEL5-3等。然后从数据库中读取记录，用字符' - '拆分并将nuber值存储到数组并排序到desc并从顶部读取第一个值。它将是最高ID值。现在增加一个，显示值到文本框你的格式。

If your database column is auto increment value inserted by you Eg. LEL5-1,LEL5-2,LEL5-3 and so on. Then Read the record from database split it with character '-' and store nuber value to array and sort to desc and read the 1st value from top.It will be Highest ID value .Now increment with one , show the value to text box with your format.

使用c＃自动增加字母数字

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