标题: C# The OleDbParameter is already contained by another OleDbParameterCollection [打印本页] 作者: 资讯王 时间: 2012-12-22 14:37 标题: C# The OleDbParameter is already contained by another OleDbParameterCollection excel错误[教学-解决方案]
这问题是因为你没把Parameter清除,记得每次的execute command时,都需要放进新的parameter。
来看看下面的范例。
The sqlparameter is already contained by another sqlparametercollection c#
The OleDbParameter is already contained by another OleDbParameterCollection