【实例简介】C# 实现 Oracle 数据库的 增删改查 操作

【实例截图】

【核心代码】

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using System.Data.OleDb;

using System.Data.OracleClient;

namespace Oracle

{

public partial class Form1 : Form

{

public Form1()

{

InitializeComponent();

}

private void Form1_Load(object sender, EventArgs e)

{

allgoods();

}

//提取商品信息

public void allgoods()

{

try

{

OracleConnection con = new OracleConnection("Data Source=orcl;User ID=SA;password=123;");

OracleDataAdapter da = new OracleDataAdapter();

OracleCommand cmd = new OracleCommand();

cmd.Connection = con;

cmd.CommandText = "ALLGOODS";

OracleParameter param_out = cmd.Parameters.Add("P_CURSOR", OracleType.Cursor);

param_out.Direction = ParameterDirection.Output;

cmd.CommandType = CommandType.StoredProcedure;

da.SelectCommand = cmd;

DataTable dt = new DataTable();

da.Fill(dt);

dataGridView1.DataSource = dt;

}

catch (Exception ex)

{

MessageBox.Show(ex.ToString());

}

}

private void button1_Click(object sender, EventArgs e)

{

addgoods a = new addgoods();

a.Show();

allgoods();

}

private void button3_Click(object sender, EventArgs e)

{

if (MessageBox.Show("真的要删除吗", "提示", MessageBoxButtons.OKCancel, MessageBoxIcon.Question) == DialogResult.Cancel)

return;

if (dataGridView1.Rows.Count > 0)

{

OracleConnection con = new OracleConnection("Data Source=orcl;User ID=sa;password=123;");

OracleCommand cmd = new OracleCommand();

con.Open();

cmd.Connection = con;

cmd.CommandText = "DELETEGOODS";

OracleParameter[] parameters ={

new OracleParameter("gid",OracleType.Number),

};

parameters[0].Value = dataGridView1.CurrentRow.Cells["商品编号"].Value.ToString();

parameters[0].Direction = ParameterDirection.Input;

foreach (OracleParameter parameter in parameters)

{

cmd.Parameters.Add(parameter);

}

cmd.CommandType = CommandType.StoredProcedure;

cmd.ExecuteNonQuery();

con.Close();

dataGridView1.Rows.Remove(dataGridView1.CurrentRow);

}

}

private void button2_Click(object sender, EventArgs e)

{

xggoods frm = new xggoods (int.Parse (dataGridView1.CurrentRow.Cells[0].Value.ToString()), dataGridView1.CurrentRow.Cells[1].Value.ToString(), dataGridView1.CurrentRow.Cells["供应商"].Value.ToString());

frm.ShowDialog();

allgoods();

}

private void button4_Click(object sender, EventArgs e)

{

try

{

dataGridView1.AutoGenerateColumns = false;

OracleConnection con = new OracleConnection("Data Source=orcl;User ID=SA;password=123;");

OracleDataAdapter da = new OracleDataAdapter();

OracleCommand cmd = new OracleCommand();

cmd.Connection = con;

cmd.CommandText = "SELECTGOODS";

OracleParameter[] parameters ={

new OracleParameter("gname",OracleType.VarChar ),

};

parameters[0].Value = textBox1.Text;

OracleParameter param_out = cmd.Parameters.Add("P_CURSOR", OracleType.Cursor);

param_out.Direction = ParameterDirection.Output;

foreach (OracleParameter parameter in parameters)

{

cmd.Parameters.Add(parameter);

}

cmd.CommandType = CommandType.StoredProcedure;

da.SelectCommand = cmd;

DataTable dt = new DataTable();

da.Fill(dt);

dataGridView1.DataSource = dt;

}

catch (Exception ex)

{

MessageBox.Show(ex.ToString());

}

}

private void button5_Click(object sender, EventArgs e)

{

dataGridView1.AutoGenerateColumns = false;

allgoods();

}

}

}