违反PRIMARY KEY约束'PK_Auto_Part_Details'。无法在对象'dbo.Auto_Part_Details'中插入重复键。重复键值为（1）。 [英] Violation of PRIMARY KEY constraint 'PK_Auto_Part_Details'. Cannot insert duplicate key in object 'dbo.Auto_Part_Details'. The duplicate key value is (1).

问题描述

private void btn_Add_Click(object sender, EventArgs e)
{
    try
    {
        for (int i = 0; i < dgv_Add_job_card.Rows.Count ; i++)
        {
            con.Open();
            s = "insert into Auto_Part_Details (Items_No, Job_Card, Value_Part, Auto_Parts_id) values (@Items_No, @Job_Card, @Value_Part,@Auto_Parts_id )";
            sd=new SqlCommand(s,con);
            sd.Parameters.AddWithValue("@Items_No", dgv_Add_job_card.Rows[i].Cells[0].Value);
            sd.Parameters.AddWithValue("@Job_Card", dgv_Add_job_card.Rows[i].Cells[1].Value);
            sd.Parameters.AddWithValue("@Value_Part", dgv_Add_job_card.Rows[i].Cells[2].Value);
            sd.Parameters.AddWithValue("@Auto_Parts_id",dgv_Add_job_card.Rows[i].Cells[3].Value);
            sd.ExecuteNonQuery();
            con.Close();
        }
    }

推荐答案

错误清楚地告诉您正在向<$ c插入值$ c> Id 这是主键并且该值已经存在。



这是因为主键是唯一的，不能重复。因此，请尝试插入唯一值。

The error clearly tells you that you are inserting a value to the Id which is a Primary Key and that value already exists.

This is because Primary Key is unique and can't be duplicated. So, try inserting a unique value.

这篇关于违反PRIMARY KEY约束'PK_Auto_Part_Details'。无法在对象'dbo.Auto_Part_Details'中插入重复键。重复键值为（1）。的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！