在執行洗掉操作時出現“System.Data.OleDb.OleDbException:“找不到可安裝的 ISAM。的問題，求大佬指點迷津，在線等，挺急的”-有解無憂

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Data.OleDb;
namespace 資料庫連接
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        public String GetSqlStr(String str)
        {
            return str.Replace("'", "''");
        }
        public void ShowPerson()
        {
            String connStr, selectCmd;
            connStr = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=PERSONDB.mdb";
            selectCmd = "Select * From PERSON Order By id_no DESC";
            OleDbConnection conn;
            OleDbDataAdapter myAdapter;
            DataSet myDataSet = new DataSet();
            conn = new OleDbConnection(connStr);
            conn.Open();
            myAdapter = new OleDbDataAdapter(selectCmd, conn);
            myAdapter.Fill(myDataSet, "PERSON");
            dataGridView1.DataSource = myDataSet.Tables["PERSON"];
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            ShowPerson();
        }

        private void btnAdd_Click(object sender, EventArgs e)
        {
            string connStr, insertCmd;
            connStr = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=PERSONDB.mdb";
            insertCmd = "Insert Into PERSON(name,id_position,tel,salary) Values('" + GetSqlStr(txtName.Text) + "','" + GetSqlStr(txtPosition.Text) + "','" + GetSqlStr(txtTel.Text) + "'," + int.Parse(txtSalary.Text) + ")";
            OleDbConnection conn;
            OleDbCommand cmd;
            conn = new OleDbConnection(connStr);
            conn.Open();
            cmd = new OleDbCommand(insertCmd, conn);
            cmd.ExecuteNonQuery();
            conn.Close();
            ShowPerson();
        }
        private void btnUpdate_Click(object sender, EventArgs e)
        {
            String connStr, updateCmd;
            connStr = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=PERSONDB.mdb";
            updateCmd = "update PERSON Set id_position = '" + GetSqlStr(txtPosition.Text) + "',tel='" + GetSqlStr(txtTel.Text) + "', salary =" + int.Parse(txtSalary.Text) + " Where name ='" + GetSqlStr(txtName.Text) + "'";
            OleDbConnection conn;
            OleDbCommand cmd;
            conn = new OleDbConnection(connStr);
            conn.Open();
            cmd = new OleDbCommand(updateCmd, conn);
            cmd.ExecuteNonQuery();
            conn.Close();
            ShowPerson();
        }

        private void btndel_Click(object sender, EventArgs e)
        {
            String connStr, delCmd;
            connStr = "Provider=Microsoft.Jet.OLEDB.4.0;Data Sourse=PERSONDB.mdb";
            delCmd = "Delete From PERSON Where name ='" + GetSqlStr(txtName.Text) + "'";
            OleDbConnection conn;
            OleDbCommand cmd;
            conn = new OleDbConnection(connStr);
            conn.Open();
            cmd = new OleDbCommand(delCmd, conn);
            cmd.ExecuteNonQuery();
            conn.Close();
            ShowPerson();
        }
    }
}

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標籤：C#

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