如何转换
System.Data.Linq.Table<T>
至 System.Data.DataTable
DemoDBDataContext context = new DemoDBDataContext();
DataSet ds = new DataSet();
var query = context.Customers;
ds.Tables[0] = query;
该怎么做?作业
ds.Tables[0] = query;
它抛出
Property or indexer
System.Data.DataTableCollection.this[int]
cannot be assigned to it is read only.
最佳答案
您不能将 System.Data.Linq.Table 转换为 DataTable,但是您可以轻松地在 IEnumerable 上编写扩展方法以将其转换为 DataTable:
public static DataTable ToDataTable<T>(this IEnumerable<T> items)
{
var tb = new DataTable(typeof(T).Name);
PropertyInfo[] props = typeof(T).GetProperties(BindingFlags.Public | BindingFlags.Instance);
foreach(var prop in props)
{
tb.Columns.Add(prop.Name, prop.PropertyType);
}
foreach (var item in items)
{
var values = new object[props.Length];
for (var i=0; i<props.Length; i++)
{
values[i] = props[i].GetValue(item, null);
}
tb.Rows.Add(values);
}
return tb;
}
来源:http://www.chinhdo.com/20090402/convert-list-to-datatable/
关于c# - Linq 表到 DataTable 转换,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/1935206/