[ConstraintException: Failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints.]
System.Data.DataTable.EnableConstraints() +507
System.Data.DataTable.set_EnforceConstraints(Boolean value) +46
System.Data.DataTable.EndLoadData() +206
System.Data.Common.DataAdapter.FillFromReader(DataSet dataset, DataTable datatable, String srcTable, DataReaderContainer dataReader, Int32 startRecord, Int32 maxRecords, DataColumn parentChapterColumn, Object parentChapterValue) +309
System.Data.Common.DataAdapter.Fill(DataTable[] dataTables, IDataReader dataReader, Int32 startRecord, Int32 maxRecords) +756
System.Data.Common.DbDataAdapter.FillInternal(DataSet dataset, DataTable[] datatables, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) +251
System.Data.Common.DbDataAdapter.Fill(DataTable[] dataTables, Int32 startRecord, Int32 maxRecords, IDbCommand command, CommandBehavior behavior) +465
System.Data.Common.DbDataAdapter.Fill(DataTable dataTable) +147
BookAuthorDataTableAdapters.BookAuthorTableAdapter.GetDataAll(Int32 BookId) +178
[TargetInvocationException: Exception has been thrown by the target of an invocation.]
System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor) +0
System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments) +132
System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) +146
System.Web.UI.WebControls.ObjectDataSourceView.InvokeMethod(ObjectDataSourceMethod method, Boolean disposeInstance, Object& instance) +913
System.Web.UI.WebControls.ObjectDataSourceView.ExecuteSelect(DataSourceSelectArguments arguments) +1896
System.Web.UI.WebControls.DataList.CreateControlHierarchy(Boolean useDataSource) +384
System.Web.UI.WebControls.BaseDataList.OnDataBinding(EventArgs e) +89
System.Web.UI.WebControls.BaseDataList.EnsureDataBound() +86
System.Web.UI.Control.EnsureChildControls() +107
System.Web.UI.WebControls.DataList.get_Items() +49
BookView.GetAuthorBook(Boolean all) +82
BookView.Page_Load(Object sender, EventArgs e) +3116
System.Web.UI.Control.OnLoad(EventArgs e) +108
System.Web.UI.Control.LoadRecursive() +90
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1533
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