如何将 List 转换为 .Net 中的数据 View 。
最佳答案
我的建议是将列表转换为数据表,然后使用表的默认 View 来构建您的数据 View 。
首先,您必须建立数据表:
// <T> is the type of data in the list.
// If you have a List<int>, for example, then call this as follows:
// List<int> ListOfInt;
// DataTable ListTable = BuildDataTable<int>(ListOfInt);
public static DataTable BuildDataTable<T>(IList<T> lst)
{
//create DataTable Structure
DataTable tbl = CreateTable<T>();
Type entType = typeof(T);
PropertyDescriptorCollection properties = TypeDescriptor.GetProperties(entType);
//get the list item and add into the list
foreach (T item in lst)
{
DataRow row = tbl.NewRow();
foreach (PropertyDescriptor prop in properties)
{
row[prop.Name] = prop.GetValue(item);
}
tbl.Rows.Add(row);
}
return tbl;
}
private static DataTable CreateTable<T>()
{
//T –> ClassName
Type entType = typeof(T);
//set the datatable name as class name
DataTable tbl = new DataTable(entType.Name);
//get the property list
PropertyDescriptorCollection properties = TypeDescriptor.GetProperties(entType);
foreach (PropertyDescriptor prop in properties)
{
//add property as column
tbl.Columns.Add(prop.Name, prop.PropertyType);
}
return tbl;
}
接下来,获取DataTable的默认 View :
DataView NewView = MyDataTable.DefaultView;
一个完整的例子如下:
List<int> ListOfInt = new List<int>();
// populate list
DataTable ListAsDataTable = BuildDataTable<int>(ListOfInt);
DataView ListAsDataView = ListAsDataTable.DefaultView;
关于c# - List<T> 到 DataView,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/3839022/