internal static void PopulateFromType(DataSet ds, Type pi, ref MapperInfo mi, out DataMapperAttribute dmAttr)
{
//验证Table修饰符
var isExplicit = pi.GetCustomAttributes(typeof(DataMapperAttribute), true).Any();
//var parrentAttr = pi.DeclaringType.GetCustomAttributes(typeof(DataMapperAttribute), true).FirstOrDefault() as DataMapperAttribute;
dmAttr = pi.GetCustomAttributes(typeof(DataMapperAttribute), true).FirstOrDefault() as DataMapperAttribute;
var isIgnore = pi.GetCustomAttributes(typeof(IgnoreAttribute), true).Any();
if (ds == null)
{
mi = null;
}
else if (isIgnore || (isExplicit && dmAttr == null))
{
mi = null;
}
else
{
mi = mi ?? new MapperInfo();
mi.SourceTb = dmAttr.TableFlag == TableFlag.ByTableName ? ds.Tables[dmAttr.TableName] : ds.Tables[dmAttr.TableIndex];
mi.ColumnName = string.IsNullOrEmpty(dmAttr.ColumnName) ? pi.Name : dmAttr.ColumnName;
if (dmAttr.HasEntend)
{
mi.HasExtend = new KeyValuePair <bool, MethodInfo>(true, pi.DeclaringType.GetMethod(dmAttr.ConvertFuncName));
}
}
}
public static MapperInfo FromProperty(DataSet ds, PropertyInfo pi)
{
var mi = new MapperInfo();
PopulateFromProperty(ds, pi, ref mi, out _);
return(mi);
}
public static MapperInfo FromType(DataSet ds, Type classtype)
{
var mi = new MapperInfo();
PopulateFromType(ds, classtype, ref mi, out _);
return(mi);
}