以前,我对我刚才的问题有很大的帮助,谢谢vyrp , How do I create and populate a dynamic object using a dynamically built lambda expression如何使用动态构建的lambda表达式搜索动态对象IEnumerable <dynamic>?
现在我正在寻找搜索的动态对象,并像以前一样,我不知道对象的属性,因此,我正在搜索的内容直到运行时。
下面是构建动态对象的代码:
// Get list of optional fields
var optFieldList = await _tbList_FieldRepository.GetAsync(lf => lf.ListID == listId && lf.DisplayInList == true);
// order list of optional fields
optFieldList.OrderBy(lf => lf.DisplayOrder);
// Get base Data excluding Inactive if applicable
IEnumerable<tbList_Data> primaryData = await _tbList_DataRepository.GetAsync(ld => ld.ListID == listId && (ld.IsActive == includeInactive ? ld.IsActive : true));
// Build IEnumerable<dynamic> from base results plus any optional fields to be displayed in table
var results = primaryData.Select(pd => {
dynamic result = new System.Dynamic.ExpandoObject();
result.Id = pd.ID;
result.PrimaryData = pd.PrimaryData;
result.DisplayOrder = pd.DisplayOrder;
result.IsActive = pd.IsActive;
foreach (var optField in optFieldList)
{
switch (optField.FieldType.ToLower()) {
case "text":
((IDictionary<string, object>)result).Add(optField.FieldName, pd.tbList_DataText.Where(ld => ld.DataRowID == pd.ID && ld.ListColumnID == optField.ID).Select(ld => ld.DataField).DefaultIfEmpty("").First());
break;
}
}
return result;
});
出于测试目的,我有2个动态字段,“******中国”和“FuelType”
我可以搜索已知的领域( s)即PrimaryData,没问题,如下所示。
results = results.Where(r => r.PrimaryData.Contains(searchString));
如果我知道在设计时的场******中国下面的工作
results = results.Where(r => r.PhoneNumber.Contains(searchString));
,但我想要做的,是一样的东西:
results = results.Where(r => r.PrimaryData.Contains(searchString)
|| foreach(var optField in optFieldList)
{
r.optField.FieldName.Contains(searchString)
})
结束了
results = results.Where(r =>
r.PrimaryData.Contains(searchString)
|| r.PhoneNumber.Contains(searchString) ||
r.FuelType.Contains(searchString));
但明显该代码不起作用。我试过了一堆不同的尝试,都没有成功,所以我在寻找建议。由于
你是什么意思,它不工作?请详细说明。 – CodingYoshi
那么编译错误是什么? – CodingYoshi