如何安装mysql connecter/net
(1)首先需要下载C#访问MySQL数据库的ADO.NET驱动程序
mysql-connector-net-6.3.8.msi
(2)安装mysql-connector-net
然后直接在Windows操作系统安装 mysql-connector-net-6.3.8.msi
(3)封装数据库访问组件DbConnectionMySQL
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///
/// MySQL数据库
/// 版本 mysql-connector-net-6.3.8.msi
///
[Serializable]
public class DbConnectionMySQL : DbConnectionWrapper
{
public DbConnectionMySQL(string pConnectionString)
: base(pConnectionString)
{
this.m_dbconn = new MySqlConnection(pConnectionString);
this.m_DbConnState = DbConnState.Free;
}
//--
c#利用mysql connector net怎么连接mysql数据库
(1)首先需要下载C#访问MySQL数据库的ADO.NET驱动程序
mysql-connector-net-6.3.8.msi
(2)安装mysql-connector-net
然后直接在Windows操作系统安装 mysql-connector-net-6.3.8.msi
(3)封装数据库访问组件DbConnectionMySQL
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///
/// MySQL数据库
/// 版本 mysql-connector-net-6.3.8.msi
///
[Serializable]
public class DbConnectionMySQL : DbConnectionWrapper
{
public DbConnectionMySQL(string pConnectionString)
: base(pConnectionString)
{
this.m_dbconn = new MySqlConnection(pConnectionString);
this.m_DbConnState = DbConnState.Free;
}
//--
public override DbDataAdapter GetDbDataAdapter()
{
return new MySqlDataAdapter();
}
public override DbDataAdapter GetDbDataAdapter(DbCommand dbCommand)
{
return new MySqlDataAdapter(dbCommand as MySqlCommand);
}
public override DbCommand GetDbCommand()
{
return new MySqlCommand();
}
public override DbConnection GetDbConnection()
{
return new MySqlConnection();
}
public override DbCommandBuilder GetDbCommandBuilder()
{
return new MySqlCommandBuilder();
}
public override DataProviderType GetCurrentDataProviderType()
{
return DataProviderType.Sql;
}
public override bool IsExistsTable(string TableName, string UserName)
{
#region information
bool rbc = false; //TABLES表中去查询 table_name
string dSql = "select * from TABLES where table_name='" + TableName + "'";
DataSet ds = this.ExecuteDataSet(dSql);
if (ds != null)
{
if (ds.Tables[0].Rows.Count > 0)
{
rbc = true;
}
else
{
rbc = false;
}
}
else
{
rbc = false;
}
return rbc;
#endregion
}
public override bool IsExistsField(string FieldName, string TableName)
{
#region information
bool rbc = false;
string dSql = "";
dSql = "select * from " + TableName + " where 11";
DataSet ds = this.ExecuteDataSet(dSql);
if (ds != null)
{
DataTable dt = ds.Tables[0];
for (int j = 0; j < dt.Columns.Count; j++)
{
if (dt.Columns[j].ColumnName.ToString().ToUpper() == FieldName.ToString().ToUpper())
{
rbc = true;
goto Return_End;
}
}
dt.Dispose();
dt = null;
}
ds.Dispose();
ds = null;
Return_End:
return rbc;
#endregion
}
public override char ParameterChar
{
get
{
return ':'; //SQLite的参数符号为:
}
}
public override DbParameter CreateParameter(string name, object value)
{
return new MySqlParameter(name, value);
}
public override DbParameter CreateParameter(string name)
{
DbParameter dbp = new MySqlParameter();
dbp.ParameterName = name;
return dbp;
}
public override DbParameter CreateParameter(string name, DbType dbtype, object value)
{
DbParameter dbp = new MySqlParameter();
dbp.ParameterName = name;
dbp.Value = value;
dbp.DbType = dbtype;
return dbp;
}
public override DbParameter CreateParameter(string name, DbType dbtype, int size, object value)
{
DbParameter dbp = new MySqlParameter();
dbp.ParameterName = name;
dbp.Value = value;
dbp.DbType = dbtype;
dbp.Size = size;
return dbp;
}
}
（4)客户端开发实例
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public void TestCShape_MySQL()
{
string constr = "server=localhost;User Id=root;password=root;Database=xp_users";
DbConnectionWrapper dbw = new DbConnectionMySQL(constr);
bool rbc=dbw.TestConnection();
this.Context.Response.Write(rbc);
string x = "";
//删除语句
x = "delete from xp_users";
if (dbw.ExecuteQuery(x) > 0)
{
this.Context.Response.Write("删除语句成功!下面是SQL语句" + x);
}
//插入语句
x = "insert into xp_users(gid,uid,uname,sex,email,pwd) values('";
x += "1','hsg77','何XXX',1,'hsg77@163.com','1')";
if (dbw.ExecuteQuery(x) > 0)
{
this.Context.Response.Write("插入语句成功!下面是SQL语句"+x);
}
//查询语句
DataTable dt = dbw.ExecuteDataTable("select * from xp_users");
if (dt != null && dt.Rows.Count > 0)
{
this.Context.Response.Write("用户数:"+dt.Rows.Count);
}
if (dt != null)
{
dt.Dispose();
dt = null;
}
dbw.Dispose();
dbw = null;
}
为什么MySQL Connector Net 8.0.11卸载不了？需要怎么卸载？
按下win+r打开运行窗口并输入regedit，然后点击“确定”。打开注册表编辑器，点击“编辑”中的‘查找’。输入“MySQL”，接着需要勾选“全字匹配”，最后找到MySQL文件夹右击选择“删除即可，详细步骤：1、首先按下win+r打开运行窗口并输入regedit，然后点击“确定”。2、然后就会打开注册表编辑器。3、然后点击“编辑”中的‘查找’。4、然后输入“MySQL”。5、接着需要勾选“全字匹配”。6、最后找到MySQL文件夹右击选择“删除”就可以了。
