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[City] as [city] format '{1}' Group By [city] 
 
5. Click OK to close the Collection Editor 
6. Click OK to close the Property Builder.
You should now see your new groupings in the Grouping Panel in design view, just as earlier when they 
were created by the user at run-time.
7. Run the project to view the grouped data, this time in descending order for country, and ascending for 
city.
Although the groupings set up in the designer will be applied on start-up, at runtime, the user can still 
drag the grouped header to re-arrange, add, or delete groupings from the grid, as long as the 
EnableGrouping property is set to True.
RadControls for Winforms
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RadControls for Winforms
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Programmatic Grouping at Run-Time
1. Add the following code to the form’s Load event to remove the city grouping added in the designer, and 
add a grouping by Contact Title.
2. Run the project, and view the data, now grouped by country, and then sub-grouped by Contact Type within 
the country groups. 
[VB] Removing and Adding Groupings
Private Sub RadGridViewLab3_Load(ByVal sender As ObjectByVal e As EventArgs)
Me.customersTableAdapter.Fill(Me.dataSet1.Customers)
' remove the "City" grouping added in the designer
radGridView1.MasterGridViewTemplate.GroupByExpressions.RemoveAt(1)
' add a new grouping by "Contact Title"
radGridView1.MasterGridViewTemplate.GroupByExpressions.Add("[ContactTitle] as 
[Contact Title] Group By [Contact Title] ASC")
End Sub
[C#] Removing and Adding Groupings
private void RadGridViewLab3_Load(object sender, EventArgs e)
{
this.customersTableAdapter.Fill(this.dataSet1.Customers);
// remove the "City" grouping added in the designer
radGridView1.MasterGridViewTemplate.GroupByExpressions.RemoveAt(1);
// add a new grouping by "Contact Title"
radGridView1.MasterGridViewTemplate.GroupByExpressions.Add(
"[ContactTitle] as [Contact Title] Group By [Contact Title] ASC");
}
RadControls for Winforms
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RadControls for Winforms
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Sorting and Filtering
1. In a new Windows Forms Project, drag a RadGridView control onto the form. 
2. Connect its DataSource to the Production.Product table of the AdventureWorks sample database. 
3. In the Property Window for the RadGridView, set the MasterGridView Template’s EnableFiltering property 
to true. 
4. Use the RadGridView’s Smart Tag to open the Property Builder and un-select the following fields: 
ProductID, Size, SizeUnitMeasure, rowguid, Weight, WeightUnitMeasure, Style, ProductSubcategoryID, 
ProductModelID, SellStartDate, SellEndDate, DiscontinuedDate, and ModifiedDate. 
5. Still in the Property Builder, use the Preview Panel to drag the ReorderPoint column to the furthest left 
position, then click the header block itself until it shows a downward arrow, indicating a descending sort 
on the column.
6. To view the sorting applied to the grid using the Preview Panel, navigate to the Advanced Settings tab, find 
the Data Group and click the SortExpressions property ellipses to open the GridSortField Collection Editor. 
Here, you can also add or delete sorting expressions on the grid. You should now see the descending sort 
on the Reorder Point column.
You can find the complete source for this project at:
\VS Projects\Grid\<VB|CS>\RadGridView\04_SortingandFiltering
RadControls for Winforms
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RadControls for Winforms
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7. Add namespace references to the "Imports" (VB) or "uses" (C#) clause of your code:
8. To add an additional expression to sort by Color programmatically, close the Property Builder and add the 
following code to the Load handler of the form:
9. Run the project to view your sorted data. Notice that the data is first sorted by Reorder Point, then within 
that sorting, is sorted by Color.
[VB] Adding References
Imports Telerik.WinControls.UI
Imports Telerik.WinControls.Data 
[C#] Adding References
using Telerik.WinControls.UI;
using Telerik.WinControls.Data;
[VB] Adding a Sort Expression
radGridView1.MasterGridViewTemplate.SortExpressions.Add("Color"
RadSortOrder.Ascending) 
[C#] Adding a Sort Expression
radGridView1.MasterGridViewTemplate.SortExpressions.Add("Color"
RadSortOrder.Ascending);
RadControls for Winforms
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RadControls for Winforms
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10. To add run-time filtering to the table, right-click the filter icon on the Reorder Point column, and choose 
"Greater than" from the context menu. Now enter "500" into the filter row textbox to only show products 
with a Reorder Point greater than 500.
11. Stop the project and return to the Form’s Load handler. Now programmatically add a filtering expression 
to only show products whose "MakeFlag" is true. Add the code below to the Load handler.
This step creates a FilterExpression object and assigns it to the Column's Filter property. The 
FilterExpression constructor has several overloads, but the parameters for this example are:
A BinaryOperation enumeration member that can be "OR"/"AND". 
A GridKnownFunction enumeration member that represent one of the filtering criteria in the drop 
down list, e.g. "GreaterThan", "EqualTo", etc. 
A criteria value, i.e. the value that the column value is being compared to. In the example below the 
value is "True".
12. Add a custom filtering expression to additionally filter results to only those with ProductNumbers starting 
with the letters "C" or "R".
If EnableSorting is set to true, users will still be able to change your default sorting at runtime using 
the column headers. Setting EnableSorting to false freezes the sort order to the configuration set at 
either design time or programmatically.
You can right-click and choose "No filter" to remove the filtering criteria.
[VB] Adding a Filter Expression
radGridView1.Columns("MakeFlag").Filter = New FilterExpression
(FilterExpression.BinaryOperation.[AND], GridKnownFunction.EqualTo, True
[C#] Adding a Filter Expression
radGridView1.Columns["MakeFlag"].Filter =
new FilterExpression(FilterExpression.BinaryOperation.AND, 
GridKnownFunction.EqualTo, true);
RadControls for Winforms
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RadControls for Winforms
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This is similar to the last filter, but instead of adding the operation, function and criteria to the 
constructor, they are encapsulated within a "FilterPredicate" object and added to the Columns 
FilterPredicates collection. This allows you to create more complex, multi-part filters.
13. Run the project and notice the effect of our filter expressions. Only Products with "True" MakeFlags whose 
number starts with "C" or "R" are shown.
With some data, it is desirable to show tables within tables, also known as a Hierarchical view. Multiple tables 
can be related through data keys and RadGridView allows almost effortless setup to display such relationships. 
Hierarchical tables can be set up through either the designer manually, automatically, or programmatically in 
the code-behind. The following labs will demonstrate all three implementation methods.
Hierarchy Table Setup in the Designer
[VB] Adding a Multiple Part Filter
radGridView1.Columns("ProductNumber").Filter = New FilterExpression("ProductNumber"
radGridView1.Columns("ProductNumber").Filter.Predicates.Add
(FilterExpression.BinaryOperation.[OR], GridKnownFunction.StartsWith, "C")
radGridView1.Columns("ProductNumber").Filter.Predicates.Add
(FilterExpression.BinaryOperation.[OR], GridKnownFunction.StartsWith, "R"
[C#] Adding a Multiple Part Filter
radGridView1.Columns["ProductNumber"].Filter = new FilterExpression
("ProductNumber");
radGridView1.Columns["ProductNumber"].Filter.Predicates.Add(
FilterExpression.BinaryOperation.OR, GridKnownFunction.StartsWith, "C");
radGridView1.Columns["ProductNumber"].Filter.Predicates.Add(
FilterExpression.BinaryOperation.OR, GridKnownFunction.StartsWith, "R");
There is a more convenient way to sort a column. Instead of adding a new SortExpression, set the 
SortOrder property:
[VB] Assigning the SortOrder
Me.radGridView1.Columns("Value").SortOrder = RadSortOrder.Descending 
[C#] Assigning the SortOrder
this.radGridView1.Columns["Value"].SortOrder = RadSortOrder.Descending;
19.10 Hierarchy Support
 
RadControls for Winforms
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RadControls for Winforms
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1. Create a new Windows Forms Project. 
2. Drag a RadGridView control onto the form, and use the Smart Tag to create a new DataSource. Use the 
AdventureWorks database, and select both the HumanResources.Department and 
HumanResources.EmployeeDepartmentHistory tables.
3. Again using the Smart Tag, select the Department Table as the source for the main grid.
You can find the complete source for this project at:
\VS Projects\Grid\<VB|CS>\RadGridView\05_HierarchyDesigner
RadControls for Winforms
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RadControls for Winforms
4. Now, open the Property Builder for the grid. Select the View Settings tab, and in the Data settings & 
hierarchy pane, open the Collection Editor for the ChildGridViewTemplates.
5. Add a new GridViewTemplate to the collection, and choose the EmployeeDepartmentHistory table as its 
DataSource. This will be the child table within the grid. Afterwards, click OK to save the 
ChildGridViewTemplates collection.
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RadControls for Winforms
6. In the Grid Settings tab, open the Collections editor for the Relations collection.
RadControls for Winforms
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RadControls for Winforms
7. In the Relations Collection Editor, add a new relation by clicking the "Add" button. Then, name your 
relation in the properties pane on the right side of the Collection Editor. Here, the relation is named 
"DepartmenttoDepartmentHistory". Set the templates of the relation to your newly created Child template 
for the ChildTemplate property, and the MasterGridView template for the ParentTemplate.
8. Finally, set the related column by adding the Column Name “DepartmentID” to the collections of the 
ChildColumnNames and ParentColumnNames properties of the relation. Both collections should look like 
the figure below. Afterwards, click OK to close both dialogs and the Property Editor.
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RadControls for Winforms
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