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                                  • Hi,

                                    I've just updated my version to 9.1.3 (latest until now). Now every report I have that has a String Filter in the Detail Report Band throws an exception when I try to edit in VSTO Designer.

                                    The only way I've managed to open the report designer now, was by removing the "this.DetailReport.FilterString" line from the report's 'Report.Designer.cs' file.

                                    Tks for all the support.
                                    Kind Regards,

                                    Steps to Reproduce:

                                    Create a report.

                                    Bind a datasource that allows you to create a detail report band.

                                    Set a filter string for the detail report band.

                                    save and close the report.

                                    build project.

                                    open the report designer again.

                                    Actual Results:

                                    Object reference not set to an instance of an object.



                                    Instances of this error (1)


                                    1. Hide Call Stack


                                    at DevExpress.XtraReports.UI.XtraReportBase.IsFieldNameValid(String fieldName)

                                    at DevExpress.XtraReports.Native.RealNameFilterStringVisitor.Visit(OperandProperty theOperand)

                                    at DevExpress.Data.Filtering.OperandProperty.Accept(ICriteriaVisitor visitor)

                                    at DevExpress.XtraReports.Native.ClientCriteriaVisitorBase.Process(CriteriaOperator criteriaOperator)

                                    at DevExpress.XtraReports.Native.ClientCriteriaVisitorBase.DevExpress.Data.Filtering.ICriteriaVisitor.Visit(BinaryOperator theOperator)

                                    at DevExpress.Data.Filtering.BinaryOperator.Accept(ICriteriaVisitor visitor)

                                    at DevExpress.XtraReports.UI.XtraReportBase.GetRealFilterString(String displayFilterString)

                                    at DevExpress.XtraReports.Design.FilterStringPropertyDescriptor.SetValue(Object component, Object value)

                                    at System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializePropertyAssignStatement(IDesignerSerializationManager manager, CodeAssignStatement statement, CodePropertyReferenceExpression propertyReferenceEx, Boolean reportError)

                                    at System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializeAssignStatement(IDesignerSerializationManager manager, CodeAssignStatement statement)

                                    at System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializeStatement(IDesignerSerializationManager manager, CodeStatement statement)

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