The error message here seems to indicate that your project might have mixed references - that is, it might be referencing more than one version of the same assembly.

Check out the references in all of the projects in the solution and make sure they are all right version. You might also want to try clearing out the contents of the licx files in your project to make sure they are not referring to older versions of the controls.

Another, less likely, option is that you are trying to load a layout that was created in a newer version of the grid into an older version. You can load an older layout into a new version of the grid, but you can't go the other way.

Hi Kim,

Thanks for the detailed reply. Was quite useful. I did upgrade to the newer version. But I have one issue. The Layoust do not load.  When I try to load layout using the following code,

MemoryStream stream = new MemoryStream(LayoutArray);
grid.DisplayLayout.Load(stream, PropertyCategories.All);

I get the following error.

Unable to load one or more of the requested types. Retrieve the LoaderExceptions property for more information.

Here is the stack trace

  at System.Reflection.Module._GetTypesInternal(StackCrawlMark& stackMark)    
   at System.Reflection.Assembly.GetTypes()    
   at Infragistics.Shared.Serialization.Binder.FindType(Assembly assembly, String assemblyName, String typeName)    
   at Infragistics.Shared.Serialization.Binder.BindToTypeImpl(String assemblyName, String typeName)    
   at Infragistics.Shared.Serialization.Binder.BindToType(String assemblyName, String typeName)    
   at Infragistics.Win.Serialization.Binder.BindToType(String assemblyName, String typeName)    
   at Infragistics.Win.UltraWinGrid.Serialization.Binder.BindToType(String assemblyName, String typeName)    
   at System.Runtime.Serialization.Formatters.Binary.ObjectReader.Bind(String assemblyString, String typeString)  
     at System.Runtime.Serialization.Formatters.Binary.ObjectReader.GetType(BinaryAssemblyInfo assemblyInfo, String name)    
     at System.Runtime.Serialization.Formatters.Binary.ObjectMap..ctor(String objectName,
     String[] memberNames, BinaryTypeEnum[] binaryTypeEnumA, Object[] typeInformationA,
     Int32[] memberAssemIds, ObjectReader objectReader, Int32 objectId,
     BinaryAssemblyInfo assemblyInfo, SizedArray assemIdToAssemblyTable)   
      at System.Runtime.Serialization.Formatters.Binary.__BinaryParser.ReadObjectWithMapTyped(BinaryObjectWithMapTyped record)   
       at System.Runtime.Serialization.Formatters.Binary.__BinaryParser.ReadObjectWithMapTyped(BinaryHeaderEnum binaryHeaderEnum) 
          at System.Runtime.Serialization.Formatters.Binary.__BinaryParser.Run()  
            at System.Runtime.Serialization.Formatters.Binary.ObjectReader.Deserialize(HeaderHandler handler,
             __BinaryParser serParser, Boolean fCheck, Boolean isCrossAppDomain, IMethodCallMessage methodCallMessage)   
              at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize(Stream serializationStream, HeaderHandler handler, Boolean fCheck, Boolean isCrossAppDomain, IMethodCallMessage methodCallMessage)     at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize(Stream serializationStream)     at Infragistics.Win.UltraWinGrid.UltraGridLayout.LoadHelper(Stream stream, PropertyCategories propertyCategories, IFormatter formatter)  
                at Infragistics.Win.UltraWinGrid.UltraGridLayout.Load(Stream stream, PropertyCategories propertyCategories)

Hi Mike,

I tried version 9.1 and it works fine there. But I cant use version 9.1 as this grid is in a lot of forms. You mentioned a service release. How do I get it ? and How do I apply it. Do I have to unload all my grids ? What's the process?

Hi Mike,

I have two Columns in the grid. The first Column is bound to a drop downlist as shown below. The grid has say 5 rows. I select the filter on the header of the first column. It filters properly. It returns two rows. I save the layout. Load it back again. The grid does not show 2 rows. It shows no rows.

Instead of a dropdownlist, if i use the ValueList (which i have commented below), it works fine.

Thanks

Satish

     private void ultraGrid1_InitializeLayout(object sender, InitializeLayoutEventArgs e)
        {
            ultraGrid1.DisplayLayout.Bands[0].Columns[0].Style = Infragistics.Win.UltraWinGrid.ColumnStyle.DropDownList;

            //Infragistics.Win.ValueList PhList1 = new Infragistics.Win.ValueList();
            //PhList1.ValueListItems.Add("0", "OK");
            //PhList1.ValueListItems.Add("1", "Cancel");
            //PhList1.ValueListItems.Add("2", "Reset");

            DataTable dt = new DataTable();
            dt.Columns.Add("key");
            dt.Columns.Add("val");
            DataRow dr;

            dr = dt.NewRow();
            dr["key"] = 0;
            dr["val"] = "OK";
            dt.Rows.Add(dr);

            dr = dt.NewRow();
            dr["key"] = 1;
            dr["val"] = "Cancel";
            dt.Rows.Add(dr);

            dr = dt.NewRow();
            dr["key"] = 2;
            dr["val"] = "Reset";
            dt.Rows.Add(dr);

            UltraDropDown ddl = new UltraDropDown();
            ddl.SetDataBinding(dt, null);
            ddl.ValueMember = dt.Columns[0].ColumnName;
            ddl.DisplayMember = dt.Columns[1].ColumnName;

            //ddl.DisplayLayout.Bands[0].Columns[0].Hidden = true;
            //ddl.DisplayLayout.Bands[0].ColHeadersVisible = false;
            //ddl.DisplayLayout.Override.BorderStyleRow = UIElementBorderStyle.None;
            //ddl.DisplayLayout.Override.BorderStyleCell = UIElementBorderStyle.None;
           

            //ultraGrid1.DisplayLayout.Bands[0].Columns[0].ValueList = PhList1;
            ultraGrid1.DisplayLayout.Bands[0].Columns[0].ValueList = ddl;
            e.Layout.Override.AllowRowFiltering = Infragistics.Win.DefaultableBoolean.True;
            e.Layout.ViewStyleBand = ViewStyleBand.OutlookGroupBy;
        }