' A RenderArea is created that is to be repeated for each group.

Dim ra As C1.C1Preview.RenderArea = New C1.C1Preview.RenderArea

ra.Style.Borders.All = New C1.C1Preview.LineDef("2mm", Color.Blue)

 

' MyData array of objects is used as the data source:

ra.DataBinding.DataSource = MyData.Generate(100, 0)

 

' Data is grouped by the GroupId field:

ra.DataBinding.Grouping.Expressions.Add("Fields!GroupId.Value")

 

' Create a RenderText that will serve as the group header; In a general case, the header can be complex and itself be data bound:

Dim rt As C1.C1Preview.RenderText = New C1.C1Preview.RenderText

 

' The group header will look like "GroupId = XXX", where XXX is the value of the GroupId field in the group:

rt.Text = "GroupId: [Fields!GroupId.Value]"

rt.Style.BackColor = Color.Yellow

 

' Add the header to the group area:

ra.Children.Add(rt)

 

' This RenderText will print records within each group:

rt = New C1.C1Preview.RenderText

 

' The text to print for each record:

rt.Text = "GroupId: [Fields!GroupId.Value]" & Microsoft.VisualBasic.Chr(13) & "IntValue: [Fields!IntValue.Value]"

rt.Style.Borders.Bottom = C1.C1Preview.LineDef.Default

rt.Style.BackColor = Color.FromArgb(200, 210, 220)

 

' Set the text's data source to the data source of the containing RenderArea - this indicates that the render object is bound to the current group in the specified object:

rt.DataBinding.DataSource = ra.DataBinding.DataSource

 

' Add the text to the area:

ra.Children.Add(rt)

// A RenderArea is created that is to be repeated for each group.

RenderArea ra = new RenderArea();

ra.Style.Borders.All = new LineDef("2mm", Color.Blue);

 

// MyData array of objects is used as the data source:

ra.DataBinding.DataSource = MyData.Generate(100, 0);

 

// Data is grouped by the GroupId field:

ra.DataBinding.Grouping.Expressions.Add("Fields!GroupId.Value");

 

// Create a RenderText that will serve as the group header; In a general case, the header can be complex and itself be data bound:

RenderText rt = new RenderText();

 

// The group header will look like "GroupId = XXX", where XXX is the value of the GroupId field in the group:

rt.Text = "GroupId: [Fields!GroupId.Value]";

rt.Style.BackColor = Color.Yellow;

 

// Add the header to the group area:

ra.Children.Add(rt);

 

// This RenderText will print records within each group:

rt = new RenderText();

 

// The text to print for each record:

rt.Text = "GroupId: [Fields!GroupId.Value]\rIntValue: [Fields!IntValue.Value]";

rt.Style.Borders.Bottom = LineDef.Default;

rt.Style.BackColor = Color.FromArgb(200, 210, 220);

 

// Set the text's data source to the data source of the containing  RenderArea - this indicates that the render object is bound to the current group in the specified object:

rt.DataBinding.DataSource = ra.DataBinding.DataSource;

 

// Add the text to the area:

ra.Children.Add(rt);