//Delete删除命令创建
string Create_CMD_Delete(T entity, int Id)
{
strCmd_Delete.Clear();
strCmd_Delete.Append("delete from [" + ClassPropertyHelper.GetClassName <T>(entity));
strCmd_Delete.Append("] where ID=" + Id);
return(strCmd_Delete.ToString());
}
//插入命令创建
string Create_CMD_Insert(T entity)
{
strCmd_Insert.Clear();
strCmd_Insert.Append("insert into [" + ClassPropertyHelper.GetClassName <T>(entity) + "]([");
var DI = ClassPropertyHelper.GetPropertyNameAndValue <T>(entity);
for (int i = 0; i < DI.Count; i++)
{
if (DI.ElementAt(i).Key == "ID")
{
continue;
}
if (i == DI.Count - 1)
{
strCmd_Insert.Append(DI.ElementAt(i).Key + "])");
break;
}
strCmd_Insert.Append(DI.ElementAt(i).Key + "],[");
}
strCmd_Insert.Append(" values(");
for (int i = 0; i < DI.Count; i++)
{
if (DI.ElementAt(i).Key == "ID")
{
continue;
}
if (i == DI.Count - 1)
{
strCmd_Insert.Append("@" + DI.ElementAt(i).Key + ")");
break;
}
strCmd_Insert.Append("@" + DI.ElementAt(i).Key + ",");
}
return(strCmd_Insert.ToString());
}
/// <summary>
/// 查询变压器参数
/// </summary>
/// <param name="Filed_Name"></param>
/// <param name="Filed_Value"></param>
/// <returns></returns>
public List <T> SelectAll()
{
strCmd_Select.Clear();
T entity = new T();
strCmd_Select.Append("select * from [" + ClassPropertyHelper.GetClassName <T>(entity) + " ] ");
return(PutAllVal(entity, ExecuteDataSet(strCmd_Select.ToString())));
}
OleDbParameter[] CreateParameters(T entity)
{
var DI = ClassPropertyHelper.GetPropertyNameAndValue <T>(entity);
var DIT = ClassPropertyHelper.GetPropertyNameAndType <T>(entity);
OleDbParameter[] parameters = new OleDbParameter[DI.Count - 1];
for (int i = 0; i < DI.Count - 1; i++)
{
OleDbParameter para = new OleDbParameter();
para.OleDbType = ConverOleType(DIT.ElementAt(i + 1).Value);
para.ParameterName = DI.ElementAt(i + 1).Key;
para.Value = StingToSysType(DIT.ElementAt(i + 1).Value, DI.ElementAt(i + 1).Value);
parameters[i] = para;
}
return(parameters);
}
void CreateTable(T entity, Catalog catalog)
{
ADODB.Connection cn = new ADODB.Connection();
cn.Open(strConnection, null, null, -1);
catalog.ActiveConnection = cn;
Table table = new Table();
var DI = ClassPropertyHelper.GetPropertyNameAndValue <T>(entity);
var DIT = ClassPropertyHelper.GetPropertyNameAndType <T>(entity);
table.Name = ClassPropertyHelper.GetClassName <T>(entity);
for (int i = 0; i < DI.Count; i++)
{
if (DI.ElementAt(i).Key == "ID")
{
ADOX.Column column = new ADOX.Column();
column.ParentCatalog = catalog;
column.Name = "ID";
column.Type = DataTypeEnum.adInteger;
column.DefinedSize = 32;
column.Properties["AutoIncrement"].Value = true;
table.Columns.Append(column, DataTypeEnum.adInteger, 32);
table.Keys.Append("PrimaryKey", ADOX.KeyTypeEnum.adKeyPrimary, "ID", "", "");
}
else
{
table.Columns.Append(DI.ElementAt(i).Key, ConverType(DIT.ElementAt(i).Value), 64);
}
}
try {
catalog.Tables.Append(table);
}
catch (Exception ex) {
//MessageBox.Show("OleHelper行号92:" + ex.Message);
}
finally {
cn.Close();
}
}
public void Update(T entity, int Id)
{
try {
var DI = ClassPropertyHelper.GetPropertyNameAndValue <T>(entity);
var DIT = ClassPropertyHelper.GetPropertyNameAndType <T>(entity);
OleDbParameter[] parameters = new OleDbParameter[DI.Count];
var temp = CreateParameters(entity);
for (int i = 0; i < DI.Count - 1; i++)
{
parameters[i] = temp[i];
}
OleDbParameter para = new OleDbParameter();
para.OleDbType = OleDbType.Integer;
para.ParameterName = "ID";
para.Value = Id;
parameters[DI.Count - 1] = para;
ExecuteNonQuery(Create_CMD_Update(entity, Id), parameters);
}
catch (Exception error) {
MessageBox.Show(error.Message);
}
}
//Update命令创建
string Create_CMD_Update(T entity, int Id)
{
strCmd_Update.Clear();
strCmd_Update.Append("update [" + ClassPropertyHelper.GetClassName <T>(entity) + "] set ");
var DI = ClassPropertyHelper.GetPropertyNameAndValue <T>(entity);
for (int j = 0; j < DI.Count; j++)
{
if (DI.ElementAt(j).Key == "ID")
{
continue;
}
if (j == DI.Count - 1)
{
strCmd_Update.Append("[" + DI.ElementAt(j).Key + "]=@" + DI.ElementAt(j).Key + "");
break;
}
strCmd_Update.Append("[" + DI.ElementAt(j).Key + "]=@" + DI.ElementAt(j).Key + ", ");
}
strCmd_Update.Append(" where [ID]=@ID");
return(strCmd_Update.ToString());
}
