如何仅复制最后记录,以备另一可数据检索?
What is the use of default keyword in C#? Is it introduced in C# 3.0 ?
如何仅复制最后记录,以备另一可数据检索?
确实,除非我没有一件事,否则你只能http://support.microsoft.com/kb/308909” rel=“nofollow noreferer”ImportRow
。 它:
newDataTable.ImportRow(firstDataTable.Rows[firstDataTable.Rows.Count - 1]);
DataTable dt;
DataTable dt2;
DataRow dr = dt.Rows[dt.Rows.Count - 1];
dt2.Rows.Add(dr);
直接
dt2.Rows.Add(dt.Rows[dt.Rows.Count - 1]);
如何做到这一点
public DataTable CopyLastRowToNewTable(DataTable dt)
{
DataTable dtNew = dt.Clone();
if (dt.Rows.Count > 0)
{
dtNew.ImportRow(dt.Rows[dt.Rows.Count - 1]);
}
return dtNew;
}
抄录第一行:
dtNew.ImportRow(dt.Rows[dt.Rows[0]);
而不是
dtNew.ImportRow(dt.Rows[dt.Rows.Count - 1]);
What is the use of default keyword in C#? Is it introduced in C# 3.0 ?
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