第一種

public static DataView GetLatestComments(int numComments)

{ DataView Comments = new DataView(GetComments());

Comments.Sort = “DateCreated Desc“;

string filter = string.Empty;

string delimiter = string.Empty;

numComments = Math.Min(numComments, Comments.Count);

for (int i = 0; i < numComments; i++)

{ filter += delimiter + Comments[i]["Id"].ToString(); delimiter = “,“;

}

if (filter.Length > 0) {

Comments.RowFilter = “Id in (“ + filter + “)“;

} return Comments; }

第二種

private?DataTable?SelectTop(int?Top,?DataTable?oDT)
????????{
????????????if?(oDT.Rows.Count?<?Top)?return?oDT;

????????????DataTable?NewTable?=?oDT.Clone();
????????????DataRow[]?rows?=?oDT.Select("1=1");
????????????for?(int?i?=?0;?i?<?Top;?i++)
????????????{
????????????????NewTable.ImportRow((DataRow)rows[i]);
????????????}?????????????
????????????return?NewTable;
????????}

轉載于:https://www.cnblogs.com/l1pe1/archive/2011/03/22/1991626.html

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