评论会员：游客 时间：2012/02/07
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约翰・西蒙斯/取缔程序员
评论会员：游客 时间：2012/02/07
只需使用DateTime.TryParse的（）方法来验证日期。它不会解析的日期，如果是无效的，将返回false表示失败。ChandraRam
。看看TryParse方法
心连心
评论会员：SCUBAPRO 时间：2012/02/07
为什么不使用IsDate函数吗？是什么它的存在脱颖而出
评论会员：游客 时间：2012/02/07
试试这个代码:codeprelang="vb"spanclass="code-keyword"Dim/span_Datespanclass="code-keyword"As/spanspanclass="code-keyword"String/span=spanclass="code-string""/spanspanclass="code-string"1/9/2011"/spanspanclass="code-comment"'/spanspanclass="code-comment"CodetoextractDayfromDate/spanspanclass="code-keyword"Public/spanspanclass="code-keyword"Function/spanGetDay(spanclass="code-keyword"ByVal/spanspanclass="code-keyword"Date/spanspanclass="code-keyword"As/spanspanclass="code-keyword"String/span)spanclass="code-comment"'/spanspanclass="code-comment"ReturnDayfromgeivenDate/spanspanclass="code-keyword"Return/span(s.Substring(spanclass="code-digit"0/span,s.IndexOf(spanclass="code-string""/spanspanclass="code-string"/"/span))spanclass="code-keyword"End/spanspanclass="code-keyword"Function/spanspanclass="code-comment"'/spanspanclass="code-comment"CodetoextractmonthfromDate/spanspanclass="code-keyword"Public/spanspanclass="code-keyword"Function/spanGetMonth(spanclass="code-keyword"ByVal/spanspanclass="code-keyword"Date/spanspanclass="code-keyword"As/spanspanclass="code-keyword"String/span)spanclass="code-comment"'/spanspanclass="code-comment"ReturnMonthfromGivenDate/spanspanclass="code-keyword"Return/span(s.Substring(s.IndexOf(spanclass="code-string""/spanspanclass="code-string"/"/span)+spanclass="code-digit"1/span,s.LastIndexOf(spanclass="code-string""/spanspanclass="code-string"/"/span)-s.IndexOf(spanclass="code-string""/spanspanclass="code-string"/"/span)-spanclass="code-digit"1/span)spanclass="code-keyword"End/spanspanclass="code-keyword"Function/span spanclass="code-comment"'/spanspanclass="code-comment"CodetoValidate/spanspanclass="code-keyword"If/spanGetDay(_Date)<=spanclass="code-digit"31/spanspanclass="code-keyword"And/spanGetMonth(_Date)<=spanclass="code-digit"12/spanspanclass="code-keyword"Then/spanMessageBox.Show(spanclass="code-string""/spanspanclass="code-string"ValidDate"/span)spanclass="code-keyword"Else/spanMessageBox.Show(spanclass="code-string""/spanspanclass="code-string"InvalidDate"/span)spanclass="code-keyword"End/spanspanclass="code-keyword"If/span/pre/code我希望它会帮助你。{S0}