[InvalidCastException: Object cannot be cast from DBNull to other types.]
System.DBNull.System.IConvertible.ToInt32(IFormatProvider provider) +55
System.Convert.ToInt32(Object value, IFormatProvider provider) +33
MySql.Data.MySqlClient.<LoadCharacterSetsAsync>d__81.MoveNext() +1298
System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +102
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +64
MySql.Data.MySqlClient.<ConfigureAsync>d__78.MoveNext() +1014
System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +102
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +64
System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task) +26
MySql.Data.MySqlClient.<OpenAsync>d__97.MoveNext() +3154
System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +102
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +64
MySql.Data.MySqlClient.MySqlConnection.Open() +56
System.Data.Common.DbDataAdapter.FillInternal(DataSet dataset, DataTable[] datatables, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) +121
System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) +138
System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, String srcTable) +87
UserAll.GetTipGen() +147
[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) +91
System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) +105
System.Web.UI.WebControls.ObjectDataSourceView.InvokeMethod(ObjectDataSourceMethod method, Boolean disposeInstance, Object& instance) +682
System.Web.UI.WebControls.ObjectDataSourceView.ExecuteSelect(DataSourceSelectArguments arguments) +1661
System.Web.UI.WebControls.Repeater.GetData() +242
System.Web.UI.WebControls.Repeater.CreateControlHierarchy(Boolean useDataSource) +216
System.Web.UI.WebControls.Repeater.OnDataBinding(EventArgs e) +63
System.Web.UI.WebControls.Repeater.DataBind() +81
System.Web.UI.WebControls.Repeater.EnsureDataBound() +59
System.Web.UI.WebControls.Repeater.OnPreRender(EventArgs e) +16
System.Web.UI.Control.PreRenderRecursiveInternal() +90
System.Web.UI.Control.PreRenderRecursiveInternal() +163
System.Web.UI.Control.PreRenderRecursiveInternal() +163
System.Web.UI.Control.PreRenderRecursiveInternal() +163
System.Web.UI.Control.PreRenderRecursiveInternal() +163
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +906
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