实例介绍
【实例简介】
【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.Threading.Tasks;
using System.Windows.Forms;
namespace GenerateSql
{
public partial class FrmMain : Form
{
public FrmMain()
{
InitializeComponent();
}
/*QQ:631914123*/
//************************************************************************************
/// <summary>
/// 查询sql
/// </summary>
private String loadListSql = String.Empty;
/// <summary>
/// 添加sql
/// </summary>
private String insertObjectSql = String.Empty;
/// <summary>
/// 修改sql
/// </summary>
private String updateObjectSql = String.Empty;
/// <summary>
/// 删除sql
/// </summary>
private String deleteObjectSql = String.Empty;
/// <summary>
/// 生成方法
/// </summary>
private String GenerateMethodStr = String.Empty;
private void btnGenerateSql_Click(object sender, EventArgs e)
{
GenerateSql();
}
private void txtColumnName_Enter(object sender, EventArgs e)
{
txtColumnName.Text = "ID,NAME,SEX,PHONENUM,ADDRESS,EMAIL,IDENTITY,QQ,VX";
}
/// <summary>
/// 生成sql语句
/// </summary>
private void GenerateSql()
{
txtGenerateSql.Text = "";
if (txtTableName != null && !txtTableName.Equals(""))
{
if (txtColumnName != null && !txtColumnName.Text.Equals("") && !txtColumnName.Text.Equals("列名用英文逗号隔开(,)"))
{
loadListSql = "String loadSql = \"select * from " txtTableName.Text "\"";
txtGenerateSql.Text = "查询sql语句 select：\r\n" loadListSql ";\r\n";
txtGenerateSql.Text = "\r\n";
String[] splitColumnName = txtColumnName.Text.Split(',');
insertObjectSql = "String insertObjectSql = \" insert into " txtTableName.Text "(";
for (int i = 0; i < splitColumnName.Length; i )
{
if ((splitColumnName.Length - 1) == i)
insertObjectSql = splitColumnName[i];
else
insertObjectSql = splitColumnName[i] ",";
}
insertObjectSql = ") values( ";
for (int n = 0; n < splitColumnName.Length; n )
{
if (n == 0)
{
insertObjectSql = splitColumnName[n] "={" n "},";
continue;
}
if ((n 1) == splitColumnName.Length)
{
insertObjectSql = splitColumnName[n] " = '{" n "}'";
break;
}
insertObjectSql = splitColumnName[n] " = '{" n "}',";
}
insertObjectSql = ")\";";
txtGenerateSql.Text = "添加sql语句 insert：\r\n" insertObjectSql "\r\n";
txtGenerateSql.Text = "\r\n";
updateObjectSql = "String updateObjectSql = \"update " txtTableName.Text " set ";
int num = 0;
for (int j = 0; j <= splitColumnName.Length; j )
{
if (j == 0)
continue;
if ((j 1) == splitColumnName.Length)
{
updateObjectSql = splitColumnName[j] " = '{" num "}'";
break;
}
updateObjectSql = splitColumnName[j] " = '{" num "}',";
num ;
}
num = 1;
updateObjectSql = " where " splitColumnName[0] " = {" num "};";
txtGenerateSql.Text = "修改sql语句 update：\r\n" updateObjectSql;
txtGenerateSql.Text = "\r\n";
deleteObjectSql = "String deleteObjectSql = \"delete from " txtTableName.Text " where " splitColumnName[0] " = {0}\";";
txtGenerateSql.Text = "\r\n";
txtGenerateSql.Text = "删除sql语句 delete：\r\n" deleteObjectSql;
}
else
{
loadListSql = "String loadSql = \"select * from " txtTableName.Text "\"";
txtGenerateSql.Text = "查询sql语句 select：\r\n" loadListSql ";\r\n";
txtGenerateSql.Text = "\r\n";
MessageBox.Show("列名不输入你让我生成什么??????！！！！");
}
}
else
MessageBox.Show("请输入表名！");
}
/// <summary>
/// 生成查询所有信息
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnLoad_Click(object sender, EventArgs e)
{
GenerateLoad();
}
/// <summary>
/// 查询所有信息
/// </summary>
private void GenerateLoad()
{
if (txtTableName != null && !txtTableName.Equals(""))
{
if (txtColumnName != null && !txtColumnName.Text.Equals("") && !txtColumnName.Text.Equals("列名用英文逗号隔开(,)"))
{
GenerateSql();
String[] splitColumnName = txtColumnName.Text.Split(',');
txtGenerateSql.Text = "DataSet ds = sc.Select(\"select* from " txtTableName.Text "\");";
txtGenerateSql.Text = "\r\nforeach (DataTable dt in ds.Tables)\r\n{\r\n foreach (DataRow dr in dt.Rows)\r\n {";
txtGenerateSql.Text = "\r\n StudentInfo info = new StudentInfo();";
for (int i = 0; i < splitColumnName.Length; i )
{
if (i == 0)
{
txtGenerateSql.Text = "\r\n info." splitColumnName[i] " = (int)dr[\"" splitColumnName[i] "\"];";
continue;
}
txtGenerateSql.Text = "\r\n info." splitColumnName[i] " = dr[\"" splitColumnName[i] "\"].ToString();";
if ((i 1) == splitColumnName.Length) txtGenerateSql.Text = "\r\n listInfo.Add(info);";
}
}
else
MessageBox.Show("不输入列名你让我生成什么??????！！！");
}
else
MessageBox.Show("请大侠指路道明让我生成什么！！！！");
}
/// <summary>
/// 生成方法
/// </summary>
private void GenerateMethod()
{
txtGenerateSql.Text = "";
txtGenerateSql.Text = "添加方法：";
GenerateMethodStr = "public void insert(){}";
}
}
}
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