输入字符串的格式不正确。
说明: 执行当前 Web 请求期间，出现未处理的异常。请检查堆栈跟踪信息，以了解有关该错误以及代码中导致错误的出处的详细信息。
异常详细信息: System.FormatException: 输入字符串的格式不正确。
源错误:
执行当前 Web 请求期间生成了未处理的异常。可以使用下面的异常堆栈跟踪信息确定有关异常原因和发生位置的信息。
堆栈跟踪:
[FormatException: 输入字符串的格式不正确。]
System.DateTimeFormat.GetRealFormat(String format, DateTimeFormatInfo dtfi) +320
System.DateTimeFormat.ExpandPredefinedFormat(String format, DateTime& dateTime, DateTimeFormatInfo& dtfi, TimeSpan& offset) +547
System.DateTimeFormat.Format(DateTime dateTime, String format, DateTimeFormatInfo dtfi, TimeSpan offset) +214
System.DateTimeFormat.Format(DateTime dateTime, String format, DateTimeFormatInfo dtfi) +54
System.DateTime.ToString(String format, IFormatProvider provider) +27
System.Text.StringBuilder.AppendFormat(IFormatProvider provider, String format, Object[] args) +668
System.String.Format(IFormatProvider provider, String format, Object[] args) +91
System.Web.UI.WebControls.BoundField.FormatDataValue(Object dataValue, Boolean encode) +468
System.Web.UI.WebControls.BoundField.OnDataBindField(Object sender, EventArgs e) +132
System.Web.UI.Control.OnDataBinding(EventArgs e) +99
System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding) +206
System.Web.UI.Control.DataBind() +12
System.Web.UI.Control.DataBindChildren() +216
System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding) +216
System.Web.UI.Control.DataBind() +12
System.Web.UI.WebControls.GridView.CreateRow(Int32 rowIndex, Int32 dataSourceIndex, DataControlRowType rowType, DataControlRowState rowState, Boolean dataBind, Object dataItem, DataControlField[] fields, TableRowCollection rows, PagedDataSource pagedDataSource) +221
System.Web.UI.WebControls.GridView.CreateChildControls(IEnumerable dataSource, Boolean dataBinding) +2957
System.Web.UI.(IEnumerable data) +59
System.Web.UI.WebControls.GridView.PerformDataBinding(IEnumerable data) +11
System.Web.UI.WebControls.DataBoundControl.OnDataSourceViewSelectCallback(IEnumerable data) +111
System.Web.UI.DataSourceView.Select(DataSourceSelectArguments arguments, DataSourceViewSelectCallback callback) +29
System.Web.UI.WebControls.DataBoundControl.PerformSelect() +149
System.Web.UI.WebControls.BaseDataBoundControl.DataBind() +70
System.Web.UI.WebControls.GridView.DataBind() +4
System.Web.UI.WebControls.BaseDataBoundControl.EnsureDataBound() +82
System.Web.UI.() +69
System.Web.UI.Control.EnsureChildControls() +87
System.Web.UI.Control.PreRenderRecursiveInternal() +41
System.Web.UI.Control.PreRenderRecursiveInternal() +161
System.Web.UI.Control.PreRenderRecursiveInternal() +161
System.Web.UI.Control.PreRenderRecursiveInternal() +161
System.Web.UI.Control.PreRenderRecursiveInternal() +161
System.Web.UI.Control.PreRenderRecursiveInternal() +161
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1360