ComponentOne WinForms Edition
Getting Started with Reports for WinForms / Getting Started with Printing and Previewing / Creating Tables / Creating a Table with Three Columns and Rows / Creating a Background Color for Specific Cells in the Table
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Creating a Background Color for Specific Cells in the Table
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This topic demonstrates how to create background colors for specific cells in the table. It also demonstrates how to use the TableCell.CellStyle property to set the styles used in the table that will be rendered. This topic assumes you have a table with three columns and three rows.

  1. The following code below should already exist in your source file:

    To write code in Visual Basic

    Visual Basic
    Copy Code 
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

    ' Make a table.    
    Dim table As C1.C1Preview.RenderTable = New C1.C1Preview.RenderTable(Me.C1PrintDocument1)    
    table.Style.GridLines.All = New C1.C1Preview.LineDef(Color.DarkGray)

    Dim r As Integer = 3    
    Dim c As Integer = 3    
    Dim row As Integer    
    Dim col As Integer    
    For row = 0 To r - 1 Step +1    
        For col = 0 To c - 1 Step +1    
            Dim celltext As C1.C1Preview.RenderText = New C1.C1Preview.RenderText(Me.C1PrintDocument1)

            ' Add empty cells.     
            celltext.Text = String.Format("", row, col)    
            table.Cells(row, col).RenderObject = celltext    
        Next    
    Next
                                
    ' Generate the document.     
    Me.C1PrintDocument1.Body.Children.Add(table)    
    Me.C1PrintDocument1.Generate()    
End Sub

    To write code in C#

    C#
    Copy Code 
    private void Form1_Load(object sender, System.EventArgs e)    
{   
    // Make a table.     
    C1.C1Preview.RenderTable table = new C1.C1Preview.RenderTable(this.c1PrintDocument1);    
    table.Style.GridLines.All = new C1.C1Preview.LineDef(Color.DarkGray);

    const int r = 3;    
    const int c = 3;    
    for (int row = 0; row < r; ++row)    
    {    
        for (int col = 0; col < c; ++col)    
        {    
            C1.C1Preview.RenderText celltext = new C1.C1Preview.RenderText(this.c1PrintDocument1);    
            celltext.Text = string.Format("", row, col);

            // Add empty cells.     
            table.Cells[row, col].RenderObject = celltext;    
        }    
    }

    // Generate the document.     
    this.c1PrintDocument1.Body.Children.Add(table);    
    this.c1PrintDocument1.Generate();    
}
  2. Make the table's width and height fifteen centimeters long:

    To write code in Visual Basic

    Visual Basic
    Copy Code 
    table.Height = New C1.C1Preview.Unit(15, C1.C1Preview.UnitTypeEnum.Cm)    
table.Width = New C1.C1Preview.Unit(15, C1.C1Preview.UnitTypeEnum.Cm)

    To write code in C#

    C#
    Copy Code 
    table.Height = new C1.C1Preview.Unit(15, C1.C1Preview.UnitTypeEnum.Cm);
table.Width = new C1.C1Preview.Unit(15, C1.C1Preview.UnitTypeEnum.Cm);
  3. Add the following code below the last line of code listed above. This code will create a crimson background color for row 1, column 2.

    To write code in Visual Basic

    Visual Basic
    Copy Code 
    table.Cells(1, 2).CellStyle.BackColor = Color.Crimson

    To write code in C#

    C#
    Copy Code 
    table.Cells[1, 2].CellStyle.BackColor = Color.Crimson;
    Note: The rows and columns begin with 0. The code above uses the TableCell.CellStyle property to set the cell's style.
  4. Create a blue-violet background color for row 0, column 1. Enter the following code:

    To write code in Visual Basic

    Visual Basic
    Copy Code 
    table.Cells(0, 1).CellStyle.BackColor = Color.BlueViolet

    To write code in C#

    C#
    Copy Code 
    table.Cells[0, 1].CellStyle.BackColor = Color.BlueViolet;

Run the program and observe the following:

Your table should appear similar to the table below: