public void BingindUiData(LineResistance vo)
{
textBox1.Text = StringUtil.Zero2Text(vo.DoublePoleMaxResistance);
textBox2.Text = StringUtil.Zero2Text(vo.DoublePoleMinResistance);
textBox4.Text = StringUtil.Zero2Text(vo.GroundReturnMaxResistance);
textBox3.Text = StringUtil.Zero2Text(vo.GroundReturnMinResistance);
textBox6.Text = StringUtil.Zero2Text(vo.MetalReturnMaxResistance);
textBox5.Text = StringUtil.Zero2Text(vo.MetalReturnMinResistance);
}
private void fillVOData(LineResistance vo, OleDbDataReader reader)
{
vo.ID = (Int32)reader["ID"];
vo.DoublePoleMaxResistance = (double)reader["DoublePoleMaxResistance"];
vo.DoublePoleMinResistance = (double)reader["DoublePoleMinResistance"];
vo.GroundReturnMaxResistance = (double)reader["GroundReturnMaxResistance"];
vo.GroundReturnMinResistance = (double)reader["GroundReturnMinResistance"];
vo.MetalReturnMaxResistance = (double)reader["MetalReturnMaxResistance"];
vo.MetalReturnMinResistance = (double)reader["MetalReturnMinResistance"];
}
public void fillVoData(LineResistance vo)
{
if (textBox1.Text != string.Empty)
vo.DoublePoleMaxResistance = Convert.ToDouble(textBox1.Text);
if (textBox1.Text != string.Empty)
vo.DoublePoleMinResistance = Convert.ToDouble(textBox2.Text);
if (textBox4.Text != string.Empty)
vo.GroundReturnMaxResistance = Convert.ToDouble(textBox4.Text);
if (textBox3.Text != string.Empty)
vo.GroundReturnMinResistance = Convert.ToDouble(textBox3.Text);
if (textBox6.Text != string.Empty)
vo.MetalReturnMaxResistance = Convert.ToDouble(textBox6.Text);
if (textBox5.Text != string.Empty)
vo.MetalReturnMinResistance = Convert.ToDouble(textBox5.Text);
}
private bool Addnew(LineResistance vo)
{
using (OleDbConnection conn = CreateConnection())
{
//设置SQL语句
StringBuilder sql = new StringBuilder();
StringBuilder param = new StringBuilder();
sql.Append("INSERT INTO LineResistance (");
param.Append(" VALUES (");
sql.Append(" DoublePoleMaxResistance");
param.Append("").Append(vo.DoublePoleMaxResistance.ToString()).Append("");
sql.Append(", DoublePoleMinResistance");
param.Append(", ").Append(vo.DoublePoleMinResistance.ToString()).Append("");
sql.Append(", GroundReturnMaxResistance");
param.Append(", ").Append(vo.GroundReturnMaxResistance.ToString()).Append("");
sql.Append(", GroundReturnMinResistance");
param.Append(", ").Append(vo.GroundReturnMinResistance.ToString()).Append("");
sql.Append(", MetalReturnMaxResistance");
param.Append(", ").Append(vo.MetalReturnMaxResistance.ToString()).Append("");
sql.Append(", MetalReturnMinResistance");
param.Append(", ").Append(vo.MetalReturnMinResistance.ToString()).Append("");
sql.Append(")").Append(param).Append(");");
OleDbCommand insertcmd = new OleDbCommand(sql.ToString(), conn);
insertcmd.ExecuteNonQuery();
}
ResetConn();
return true;
}
private bool LoadData(LineResistance vo)
{
using (OleDbConnection conn = CreateConnection())
{
string sql = "Select * from LineResistance ";
if (vo.ID != -1)
{
sql += "where ID = " + vo.ID;
}
OleDbCommand myCommand = new OleDbCommand(sql, conn);
OleDbDataReader reader = myCommand.ExecuteReader(); //执行command并得到相应的DataReader
if (reader.Read())
{
fillVOData(vo, reader);
ResetConn();
}
else
{
ResetConn();
return false;
}
}
return true;
}
private bool UpdateOrAddnew(LineResistance vo)
{
if (!queryExists(vo))
{
return Addnew(vo);
}
else
{
return Update(vo);
}
}
private bool Update(LineResistance vo)
{
StringBuilder sql = new StringBuilder();//当时在这里定义，是为了在出现异常的时候看看我的SQL语句是否正确
using (OleDbConnection conn = CreateConnection())
{
sql.Append("UPDATE LineResistance SET DoublePoleMaxResistance=").Append(vo.DoublePoleMaxResistance);
sql.Append(", DoublePoleMinResistance=").Append(vo.DoublePoleMinResistance);
sql.Append(", GroundReturnMaxResistance=").Append(vo.GroundReturnMaxResistance);
sql.Append(", GroundReturnMinResistance=").Append(vo.GroundReturnMinResistance);
sql.Append(", MetalReturnMaxResistance=").Append(vo.MetalReturnMaxResistance);
sql.Append(", MetalReturnMinResistance=").Append(vo.MetalReturnMinResistance);
sql.Append(" WHERE ID = ").Append(vo.ID);
//定义command对象，并执行相应的SQL语句
OleDbCommand myCommand = new OleDbCommand(sql.ToString(), conn);
myCommand.ExecuteNonQuery(); //执行SELECT的时候我们是用的ExecuteReader()
}
ResetConn();
return true;
}
