DataColumn col = new DataColumn("warning", typeof(string));
col.DefaultValue = "";
dt.Columns.Add(col);
DataRow[] df = dt.Select(String.Format("endaddr ='广东省'"));
if (df.Length > 0)
{
这里要实现给warning,赋值
}请问如何给warning,赋值??
col.DefaultValue = "";
dt.Columns.Add(col);
DataRow[] df = dt.Select(String.Format("endaddr ='广东省'"));
if (df.Length > 0)
{
这里要实现给warning,赋值
}请问如何给warning,赋值??
dr["warning"] = "xxx";
foreach datarow dr in df
datarow drNew = dt.newrow
drNew.item("warning") = dr.item(0).tostring
dt.rows.add(drNew)
next
可以先
用旧行给新行赋值,再加上“warning”值,
然后将旧行删了,再加个新行
col.DefaultValue = "";
dt.Columns.Add(col);
DataRow[] df = dt.Select(String.Format("endaddr ='广东省'"));
foreach(DataRow dr in df)
{
dr["warning"]="123";
}