為什么80%的碼農(nóng)都做不了架構(gòu)師？>>> ??

1、添加命名空間

using System.Data.SqlServerCe; using System.Configuration;

2、添加引用： System.Configuration

查詢語(yǔ)句：

SqlCeConnection sqlceCon = new SqlCeConnection();SqlCeCommand sqlCeCom = new SqlCeCommand();string P_Str_ConnectionStr = System.Configuration.ConfigurationManager.ConnectionStrings["dbTest.Properties.Settings.LocalDBConnectionString"].ConnectionString;DataTable dt = new DataTable();sqlceCon = new SqlCeConnection(P_Str_ConnectionStr);sqlceCon.Open();SqlCeDataAdapter adptrOdbc = new SqlCeDataAdapter("select * from Test", sqlceCon);adptrOdbc.Fill(dt);dataGridView1.DataSource = dt;sqlceCon.Close();

插入語(yǔ)句：

private int doSQL(string sqlString){sqlceCon = new SqlCeConnection(P_Str_ConnectionStr);sqlceCon.Open();SqlCeCommand cmd = new SqlCeCommand(sqlString, sqlceCon);int count=cmd.ExecuteNonQuery();sqlceCon.Close();return count;}string Id = textBox1.Text;string Name = textBox2.Text;string Number = textBox3.Text;string SqlString = "insert into TEST(ID,Name,Number)values('" + Id + "','" + Name + "','" + Number + "')";int count=doSQL(SqlString);

刪除語(yǔ)句：

string SqlString = "delete Test where Name='"+Name+"'";int count=doSQL(SqlString);

? ? ?

轉(zhuǎn)載于:https://my.oschina.net/Akizi/blog/199124

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