如果它们与数据表中的列名匹配，则选择T的属性，并忽略大小写

Question

i have a part of a generic function where i need to copy property info to a list only if its name matches one of the datatable columns.

    DataTable dt = new DataTable();
    .
    .
    .
//here i want only the properties that have the same name of some column in the datatable
    List<PropertyInfo> properties = typeof(T).GetProperties().ToList();

how can i do this using LINQ?

i tried

List<PropertyInfo> properties = typeof(T).GetProperties().Where(p=> dt.Columns.Contains(p.Name)).ToList();

but it doesnt seem to work that way, because i need to ignore case on both sides property name and column name

problem with ToUpper() and ToLower() functions is some times the column names are not totally lower case nor upper case

Answer 1

尝试这样的事情：

List<PropertyInfo> properties = typeof(T).GetProperties().Where(p => dt.Columns.Cast<DataColumn>().Any(c => c.ColumnName.Equals(p.Name, StringComparison.InvariantCultureIgnoreCase))).ToList();