I am posting this solution for anyone out there trying to solve similar problem. I changed the style and added SimpleTextBlock in ScrollViewer. Once you set MaxHeight and VerticalScrollbarVisibility to Auto, scrollbar will appear in non-edit mode as well. Here is my solution:

<!--  _________________________ TextEditor __________________________________________  -->
            <Style x:Key="XamTextEditorExStyle" TargetType="{x:Type igEditors:XamTextEditor}">
                <Setter Property="Background" Value="{DynamicResource {x:Static SystemColors.WindowBrushKey}}" />
                <Setter Property="BorderBrush" Value="{DynamicResource {x:Static igEditors:EditorsBrushKeys.EditorsNormalBorderFillKey}}" />
                <Setter Property="BorderThickness" Value="1" />
                <Setter Property="Padding" Value="2,2,2,2" />
               <!-- MD 4/26/11 - TFS73532 - This causes major slowdowns and doesn't provide much value so use a hard coded value instead. -->
                <!--<Setter Property="Margin" Value="{DynamicResource {x:Static igEditors:EditorsBrushKeys.TextEditorMarginKey}}" />-->
                <Setter Property="Margin" Value="1" />

                <Setter Property="SnapsToDevicePixels" Value="True"/>
                <Setter Property="Template">
                    <Setter.Value>
                        <ControlTemplate TargetType="{x:Type igEditors:XamTextEditor}">
                            <Border x:Name="MainBorder"
                        Background="{TemplateBinding Background}"
                        BorderBrush="{TemplateBinding BorderBrush}"
                        BorderThickness="{TemplateBinding BorderThickness}"
                        SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"
                         >
                                <!-- SSP 10/3/07 BR25672 Took the following code out of Border element above since
                                    the TextBlock below is already setting that value. We don't want to substract
                                    the padding twice.
                            Margin="{TemplateBinding Padding}"-->
                                <!-- MD 8/12/10 - TFS26592 - Use the SimpleTextBlock instead -->
                                <!--<TextBlock x:Name="TextBlock"-->

                               <!--scroll viewer to enable scrolling in non Edit mode -->
                                <ScrollViewer
                                    HorizontalScrollBarVisibility="{TemplateBinding HorizontalScrollBarVisibility}"
                                    VerticalScrollBarVisibility="{TemplateBinding VerticalScrollBarVisibility}">
                                        <igWindows:SimpleTextBlock x:Name="TextBlock"
                                    Margin="{TemplateBinding Padding}"
                                    Text="{TemplateBinding DisplayText}"
                                    TextWrapping="{TemplateBinding TextWrapping}"
                                    HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
                                    VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
                                    TextAlignment="{TemplateBinding TextAlignmentResolved}"
                                  />
                                </ScrollViewer>
                            </Border>
                            <ControlTemplate.Triggers>
                                <Trigger Property="IsEmbedded" Value="False">
                                    <Setter TargetName="MainBorder" Property="CornerRadius" Value="1" />
                                    <!-- MD 10/27/10 - TFS38066 - We shouldn't optimize the width measurements when this is a standalone editor -->
                                    <Setter Property="igWindows:SimpleTextBlock.OptimizeWidthMeasurement" Value="False" />
                                    <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.WindowTextBrushKey}}"/>
                                </Trigger>
                            </ControlTemplate.Triggers>
                        </ControlTemplate>
                    </Setter.Value>
                </Setter>
                <Setter Property="EditTemplate">
                    <Setter.Value>
                        <ControlTemplate TargetType="{x:Type igEditors:XamTextEditor}">
                            <Border
                        x:Name="MainBorder"
                        Background="{TemplateBinding Background}"
                        BorderBrush="{TemplateBinding BorderBrush}"
                        BorderThickness="{TemplateBinding BorderThickness}"                       
                         >
                                <!-- SSP 10/3/07 BR25672 Took the Margin="{TemplateBinding Padding}" code out of Border element above
                                and instead added Padding="{TemplateBinding Padding}" to the TextBox below. Padding should not
                                be outside the border and the background. It should be inside the border and around the editor's
                                contents.-->
                                <!-- AS 2/3/09 TFS13387 Added template binding to the SpellCheck properties -->
                                <!-- JJD 11/29/10 - TFS58984 - Added AcceptsReturn and AcceptsTab properties -->
                                <!-- SSP 6/24/11 TFS57835 Added InputMethod.PreferredImeState template binding. -->
                                <TextBox
                            Name="PART_FocusSite"
                            Padding="{TemplateBinding Padding}"
                            Text="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Text, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
                            AcceptsReturn="{TemplateBinding AcceptsReturn}"
                            AcceptsTab="{TemplateBinding AcceptsTab}"
                            TextWrapping="{TemplateBinding TextWrapping}"
                            HorizontalScrollBarVisibility="{TemplateBinding HorizontalScrollBarVisibility}"
                            VerticalScrollBarVisibility="{TemplateBinding VerticalScrollBarVisibility}"
                            HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}"
                            VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}"
                            TextAlignment="{TemplateBinding TextAlignmentResolved}"
                            IsReadOnly="{TemplateBinding ReadOnly}"
                            MaxLength="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=ValueConstraint.MaxLength, Mode=OneWay}"
                            Background="Transparent"
                            BorderBrush="Transparent"
                            BorderThickness="0,0,0,0"                            
                            Foreground="{TemplateBinding Foreground}"
                            ContextMenu="{TemplateBinding ContextMenu}"
                            SpellCheck.IsEnabled="{TemplateBinding SpellCheck.IsEnabled}"
                            SpellCheck.SpellingReform="{TemplateBinding SpellCheck.SpellingReform}"
                            InputMethod.PreferredImeState="{TemplateBinding InputMethod.PreferredImeState}"
                      />
                            </Border>
                            <!--
                    SSP 6/6/07 BR23366
                    Added trigger that sets IsTabStop to False based on IsInEditMode setting.
                    We need this in order to make the Tab and Shift+Tab navigation work properly.
                    Apparently presense of nested textbox causes Shift+Tab to misbehave and cause
                    the framwork to give focus to the parent ContentPresenter if the editor
                    is inside a HeaderedContentControl. This is similar to what inbox ComboBox
                    does.
                    -->
                            <ControlTemplate.Triggers>
                                <Trigger Property="IsInEditMode" Value="True">
                                    <Setter Property="IsTabStop" Value="False" />
                                    <Setter Property="Padding" Value="0,2,2,2"/>
                                </Trigger>
                            </ControlTemplate.Triggers>
                        </ControlTemplate>
                    </Setter.Value>
                </Setter>
                <Style.Triggers>
                    <Trigger Property="IsEmbedded" Value="True">
                        <Setter Property="BorderThickness" Value="0"/>
                    </Trigger>
                    <MultiTrigger>
                        <MultiTrigger.Conditions>
                            <Condition Property="IsEmbedded" Value="True"/>
                            <Condition Property="IsInEditMode" Value="True"/>
                        </MultiTrigger.Conditions>
                        <Setter Property="BorderThickness" Value="0"/>
                    </MultiTrigger>
                    <MultiTrigger>
                        <MultiTrigger.Conditions>
                            <Condition Property="IsEmbedded" Value="True"/>
                            <Condition Property="IsInEditMode" Value="False"/>
                        </MultiTrigger.Conditions>
                        <Setter Property="Background" Value="{x:Null}"/>
                        <Setter Property="BorderBrush" Value="{x:Null}"/>
                        <Setter Property="Padding" Value="2,2,2,2"/>
                    </MultiTrigger>
                    <MultiTrigger>
                        <MultiTrigger.Conditions>
                            <Condition Property="IsEmbedded" Value="False"/>
                            <Condition Property="IsInEditMode" Value="True"/>
                        </MultiTrigger.Conditions>
                        <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.WindowTextBrushKey}}"/>
                    </MultiTrigger>
                    <!-- SSP 1/8/08 BR29482 - Added setter for setting Foreground.
             We were already setting the Background explicitly above. If we don't
             do this then the Foreground will be inherited but not the background.
             This causes a problem when the editor is inside an item of a ListBox
             and the item is selected. The item's back color turns blue and fore
             color turns white. However the editor inherits only the fore color
             and causes the contents to turn white, essentially disappear since
             the background is explicitly set to white above. Also TextBox
             explicitly sets both the Background and Foreground.
            -->
                    <!--<Trigger Property="IsEmbedded" Value="False">
                <Setter Property="Foreground" Value="#000000" />
            </Trigger>-->
                    <Trigger Property="IsEnabled" Value="False">
                        <Setter Property="BorderBrush" Value="{DynamicResource {x:Static SystemColors.InactiveBorderBrushKey}}"/>
                        <Setter Property="Background" Value="{DynamicResource {x:Static SystemColors.WindowBrushKey}}" />
                        <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}" />
                    </Trigger>
                </Style.Triggers>
            </Style>

Anyone please?

Hi Krasimir,

I got back to fix this problem but came to know that scroll bar only appears if AllowEdit is true, otherwise scroll bar doesn't appear.

I my case I have to have AllowEdit= false, how can I still make scroll bar to appear?

Thanks,

imad.

And this is the Xaml part:

<igDP:XamDataGrid Grid.Row="1" x:Name="MyGrid" AutoFit="True" HorizontalAlignment="Stretch" HorizontalContentAlignment="Stretch" GroupByAreaLocation="None" BorderBrush="Black" BorderThickness="1">
                <igDP:XamDataGrid.FieldLayoutSettings>
                    <igDP:FieldLayoutSettings AddNewRecordLocation="OnBottomFixed" AllowAddNew="False" AllowDelete="False" AutoGenerateFields="True" FilterUIType="LabelIcons"/>
                </igDP:XamDataGrid.FieldLayoutSettings>
                <igDP:XamDataGrid.FieldSettings>
                    <igDP:FieldSettings AllowRecordFiltering="True" CellClickAction="SelectCell" AllowGroupBy="False"/>
                </igDP:XamDataGrid.FieldSettings>
            </igDP:XamDataGrid>

Hi Krasimir,

I tried that solution, but for some reason not working for me. I don't know if there is anyother field that is preventing scrollbar to appear.

Here is my code with bold section where I want Scroll bar to appear. I hope you can figure out the problem.

Watiing for your response.

Thanks,

Imad.

e.FieldLayout.Settings.AutoArrangeCells = AutoArrangeCells.LeftToRight;
            e.FieldLayout.Settings.DataRecordSizingMode = DataRecordSizingMode.SizedToContentAndIndividuallySizable;
            e.FieldLayout.DataPresenter.FieldSettings.AutoSizeOptions = FieldAutoSizeOptions.All;
            e.FieldLayout.DataPresenter.FieldSettings.AutoSizeScope = FieldAutoSizeScope.AllRecords;
            e.FieldLayout.DataPresenter.FieldLayoutSettings.AutoFitMode = AutoFitMode.ExtendLastField;
            e.FieldLayout.FieldSettings.AllowRecordFiltering = false; //Disable Filtering in Activity List
            Type objectType;

            //Double width = ActivityViewDg.ActualWidth;
            foreach (Field f in e.FieldLayout.Fields)
            {
               if (f.DataType == typeof(MyData))
                {
                    f.Visibility = Visibility.Collapsed;
                    continue;
                }

                f.Settings.AllowEdit = false;
                f.Settings.LabelTextAlignment = TextAlignment.Left;
                objectType = f.DataType;
                f.DataType = typeof(string);
                f.Width = FieldLength.Auto;
                f.Settings.LabelTextWrapping = TextWrapping.Wrap;

                f.Settings.LabelClickAction = LabelClickAction.SortByOneFieldOnly;
               
                // update header style to include automation id
                Style style = new Style(typeof(LabelPresenter), Infragistics.Windows.Themes.DataPresenterGeneric.LabelPresenter);
                Setter setter = new Setter();
                setter.Property = System.Windows.Automation.AutomationProperties.AutomationIdProperty;
                setter.Value = f.Name;
                style.Setters.Add(setter);
                f.Settings.LabelPresenterStyle = style;

                if (f.Name == "FirstField")
                {
                    f.Label = ManagedResources.FindResourceString("FirstFieldKey");

                    f.DataType = typeof(string);
                    f.Settings.EditorType = typeof(XamDateTimeEditor);
                    f.Settings.EditorStyle = new Style(typeof(XamDateTimeEditor));
                    f.Settings.EditorStyle.Setters.Add(new Setter(XamDateTimeEditor.FormatProperty, "G"));

                    var fsD = new FieldSortDescription
                    {
                        IsGroupBy = false,
                        Field = f,
                        FieldName = f.Name,
                        Direction = ListSortDirection.Ascending
                    };
                    e.FieldLayout.SortedFields.Add(fsD);
                }
                else
                {
                    if (f.Name == "SecondField")
                    {
                        f.Label = ManagedResources.FindResourceString("SecondFieldKey");

                        f.DataType = typeof(string);
                        f.Settings.EditorType = typeof(XamTextEditor);
                        f.Settings.EditorStyle = new Style(typeof(XamTextEditor));
                        f.Settings.EditorStyle.Setters.Add(new Setter(XamTextEditor.WidthProperty, double.NaN));
                        f.Settings.EditorStyle.Setters.Add(new Setter(XamTextEditor.HeightProperty, (double)50));
                        //f.Settings.EditorStyle.Setters.Add(new Setter(XamTextEditor.MaxHeightProperty, (double)150));

                        f.Settings.EditorStyle.Setters.Add(new Setter(XamTextEditor.TextWrappingProperty, TextWrapping.Wrap));
                        f.Settings.EditorStyle.Setters.Add(new Setter(XamTextEditor.VerticalScrollBarVisibilityProperty, ScrollBarVisibility.Visible));
                    }
                }
                if (objectType == typeof(DateTime))
                {
                    f.Visibility = Visibility.Visible;
                    f.Converter = _dataTranslator;
                    f.ConverterParameter = f.Name;
                }
            }