public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, System.Type destinationType)
{
if (destinationType == typeof(System.String) &&
value is ObjDataPresentation)
{
ObjDataPresentation op = (ObjDataPresentation)value;
return("类型:" + GetObjDataType(op.ObjDataType) +
"，查询: " + op.IsSchemaForOther +
"，更新: " + op.UpdateTableName +
"，存储: " + op.StoreProcedureQuery);
}
return(base.ConvertTo(context, culture, value, destinationType));
}
public AzClassCreatProperty()
{
ObjPresentation = new ObjDataPresentation();
//CtrSpecialitySet = new SpecialitySet();
if (string.Compare(System.Diagnostics.Process.GetCurrentProcess().ProcessName, "devenv") == 0)
{
return;
}
var valuedef = typeof(AzClassCreatProperty).GetProperties()
.Where(p => p.IsDefaultValueField());
foreach (var inf in valuedef)
{
var atr = inf.GetCustomAttribute(typeof(DefaultValueAttribute));
if (atr != null)
{
inf.SetValue(this, ((DefaultValueAttribute)atr).Value);
}
}
}
public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
{
if (value is string)
{
try
{
string s = (string)value;
int colon = s.IndexOf(':');
int comma = s.IndexOf(',');
if (colon != -1 && comma != -1)
{
ObjDataTypeEnum objdatetype = GetObjDataTypeStr(s.Substring(colon + 1, (comma - colon - 1)));
colon = s.IndexOf(':', comma + 1);
comma = s.IndexOf(',', comma + 1);
bool isview = Boolean.Parse(s.Substring(colon + 1, (comma - colon - 1)));
colon = s.IndexOf(':', comma + 2);
comma = s.IndexOf(',', comma + 2);
string updatetablefrom = s.Substring(colon + 1, (comma - colon - 1));
colon = s.IndexOf(':', comma + 3);
string storeProcedureQuery = s.Substring(colon + 1);
ObjDataPresentation op = new ObjDataPresentation();
op.ObjDataType = objdatetype;
op.IsSchemaForOther = isview;
op.UpdateTableName = updatetablefrom;
op.StoreProcedureQuery = storeProcedureQuery;
return(op);
}
}
catch
{
throw new ArgumentException(
"无法将“" + (string)value +
"”转换为 SpellingOptions 类型");
}
}
return(base.ConvertFrom(context, culture, value));
}
public AzClassCreatProperty(ObjDataPresentation objDataPresentation, SpecialitySet specialitySet)
{
ObjPresentation = objDataPresentation;
//CtrSpecialitySet = specialitySet;
}