DataGridViewAdvancedBorderStyle Class

public ref class DataGridViewAdvancedBorderStyle sealed : ICloneable

public sealed class DataGridViewAdvancedBorderStyle : ICloneable

type DataGridViewAdvancedBorderStyle = class
    interface ICloneable

Public NotInheritable Class DataGridViewAdvancedBorderStyle
Implements ICloneable

Inheritance

Object

DataGridViewAdvancedBorderStyle

Implements

ICloneable

The following code example adjusts the cell borders of a DataGridView so that a double border separates the interior cells and the top left header cell from the row and column headers. This sample demonstrates how to override the AdjustColumnHeaderBorderStyle, AdjustRowHeaderBorderStyle, and AdjustCellBorderStyle methods, and the AdjustedTopLeftHeaderBorderStyle property. These members use DataGridViewAdvancedBorderStyle objects to modify individual cell borders.

using System;
using System.Drawing;
using System.Windows.Forms;

namespace DataGridViewAdvancedBorderStyleSample
{
    class Form1 : Form
    {
        [STAThreadAttribute()]
        public static void Main()
        {
            Application.EnableVisualStyles();
            Application.Run(new Form1());
        }

        public Form1()
        {
            this.AutoSize = true;
            this.Controls.Add(new CustomDataGridView());
            this.Text = "DataGridView advanced border styles demo";
        }
    }

    public class CustomDataGridView : DataGridView
    {
        public CustomDataGridView()
        {
            this.RowTemplate = new DataGridViewCustomRow();
            this.Columns.Add(new DataGridViewCustomColumn());
            this.Columns.Add(new DataGridViewCustomColumn());
            this.Columns.Add(new DataGridViewCustomColumn());
            this.RowCount = 4;
            this.EnableHeadersVisualStyles = false;
            this.AutoSize = true;
        }

        public override DataGridViewAdvancedBorderStyle AdjustedTopLeftHeaderBorderStyle
        {
            get
            {
                DataGridViewAdvancedBorderStyle newStyle =
                    new DataGridViewAdvancedBorderStyle();
                newStyle.Top = DataGridViewAdvancedCellBorderStyle.None;
                newStyle.Left = DataGridViewAdvancedCellBorderStyle.None;
                newStyle.Bottom = DataGridViewAdvancedCellBorderStyle.Outset;
                newStyle.Right = DataGridViewAdvancedCellBorderStyle.OutsetDouble;
                return newStyle;
            }
        }

        public override DataGridViewAdvancedBorderStyle AdjustColumnHeaderBorderStyle(
            DataGridViewAdvancedBorderStyle dataGridViewAdvancedBorderStyleInput,
            DataGridViewAdvancedBorderStyle dataGridViewAdvancedBorderStylePlaceHolder,
            bool firstDisplayedColumn,
            bool lastVisibleColumn)
        {
            // Customize the left border of the first column header and the
            // bottom border of all the column headers. Use the input style for 
            // all other borders.
            dataGridViewAdvancedBorderStylePlaceHolder.Left = firstDisplayedColumn ?
                DataGridViewAdvancedCellBorderStyle.OutsetDouble :
                DataGridViewAdvancedCellBorderStyle.None;
            dataGridViewAdvancedBorderStylePlaceHolder.Bottom =
                DataGridViewAdvancedCellBorderStyle.Single;

            dataGridViewAdvancedBorderStylePlaceHolder.Right =
                dataGridViewAdvancedBorderStyleInput.Right;
            dataGridViewAdvancedBorderStylePlaceHolder.Top =
                dataGridViewAdvancedBorderStyleInput.Top;

            return dataGridViewAdvancedBorderStylePlaceHolder;
        }
    }

    public class DataGridViewCustomColumn : DataGridViewColumn
    {
        public DataGridViewCustomColumn()
        {
            this.CellTemplate = new DataGridViewCustomCell();
        }
    }

    public class DataGridViewCustomCell : DataGridViewTextBoxCell
    {
        public override DataGridViewAdvancedBorderStyle AdjustCellBorderStyle(
            DataGridViewAdvancedBorderStyle dataGridViewAdvancedBorderStyleInput,
            DataGridViewAdvancedBorderStyle dataGridViewAdvancedBorderStylePlaceHolder,
            bool singleVerticalBorderAdded,
            bool singleHorizontalBorderAdded,
            bool firstVisibleColumn,
            bool firstVisibleRow)
        {
            // Customize the top border of cells in the first row and the 
            // right border of cells in the first column. Use the input style 
            // for all other borders.
            dataGridViewAdvancedBorderStylePlaceHolder.Left = firstVisibleColumn ?
                DataGridViewAdvancedCellBorderStyle.OutsetDouble :
                DataGridViewAdvancedCellBorderStyle.None;
            dataGridViewAdvancedBorderStylePlaceHolder.Top = firstVisibleRow ?
                DataGridViewAdvancedCellBorderStyle.InsetDouble :
                DataGridViewAdvancedCellBorderStyle.None;

            dataGridViewAdvancedBorderStylePlaceHolder.Right =
                dataGridViewAdvancedBorderStyleInput.Right;
            dataGridViewAdvancedBorderStylePlaceHolder.Bottom =
                dataGridViewAdvancedBorderStyleInput.Bottom;

            return dataGridViewAdvancedBorderStylePlaceHolder;
        }
    }

    public class DataGridViewCustomRow : DataGridViewRow
    {
        public override DataGridViewAdvancedBorderStyle AdjustRowHeaderBorderStyle(
            DataGridViewAdvancedBorderStyle dataGridViewAdvancedBorderStyleInput,
            DataGridViewAdvancedBorderStyle dataGridViewAdvancedBorderStylePlaceHolder,
            bool singleVerticalBorderAdded,
            bool singleHorizontalBorderAdded,
            bool isFirstDisplayedRow,
            bool isLastDisplayedRow)
        {
            // Customize the top border of the first row header and the
            // right border of all the row headers. Use the input style for 
            // all other borders.
            dataGridViewAdvancedBorderStylePlaceHolder.Top = isFirstDisplayedRow ?
                DataGridViewAdvancedCellBorderStyle.InsetDouble :
                DataGridViewAdvancedCellBorderStyle.None;
            dataGridViewAdvancedBorderStylePlaceHolder.Right =
                DataGridViewAdvancedCellBorderStyle.OutsetDouble;

            dataGridViewAdvancedBorderStylePlaceHolder.Left =
                dataGridViewAdvancedBorderStyleInput.Left;
            dataGridViewAdvancedBorderStylePlaceHolder.Bottom =
                dataGridViewAdvancedBorderStyleInput.Bottom;

            return dataGridViewAdvancedBorderStylePlaceHolder;
        }
    }
}

Imports System.Drawing
Imports System.Windows.Forms


Namespace DataGridViewAdvancedBorderStyleSample

    Class Form1
        Inherits Form

        <STAThreadAttribute()> _
        Public Shared Sub Main()
            Application.EnableVisualStyles()
            Application.Run(New Form1())
        End Sub

        Public Sub New()
            Me.AutoSize = True
            Me.Controls.Add(New CustomDataGridView())
            Me.Text = "DataGridView advanced border styles demo"
        End Sub
    End Class

    Public Class CustomDataGridView
        Inherits DataGridView

        Public Sub New()
            With Me
                .RowTemplate = New DataGridViewCustomRow()
                .Columns.Add(New DataGridViewCustomColumn())
                .Columns.Add(New DataGridViewCustomColumn())
                .Columns.Add(New DataGridViewCustomColumn())
                .RowCount = 4
                .EnableHeadersVisualStyles = False
                .AutoSize = True
            End With
        End Sub

        Public Overrides ReadOnly Property AdjustedTopLeftHeaderBorderStyle() _
            As DataGridViewAdvancedBorderStyle
            Get
                Dim newStyle As New DataGridViewAdvancedBorderStyle()
                With newStyle
                    .Top = DataGridViewAdvancedCellBorderStyle.None
                    .Left = DataGridViewAdvancedCellBorderStyle.None
                    .Bottom = DataGridViewAdvancedCellBorderStyle.Outset
                    .Right = DataGridViewAdvancedCellBorderStyle.OutsetDouble
                End With
                Return newStyle
            End Get
        End Property

        Public Overrides Function AdjustColumnHeaderBorderStyle( _
            ByVal dataGridViewAdvancedBorderStyleInput As DataGridViewAdvancedBorderStyle, _
            ByVal dataGridViewAdvancedBorderStylePlaceHolder As DataGridViewAdvancedBorderStyle, _
            ByVal firstDisplayedColumn As Boolean, ByVal lastVisibleColumn As Boolean) _
            As DataGridViewAdvancedBorderStyle

            ' Customize the left border of the first column header and the
            ' bottom border of all the column headers. Use the input style for 
            ' all other borders.
            If firstDisplayedColumn Then
                dataGridViewAdvancedBorderStylePlaceHolder.Left = _
                    DataGridViewAdvancedCellBorderStyle.OutsetDouble
            Else
                dataGridViewAdvancedBorderStylePlaceHolder.Left = _
                    DataGridViewAdvancedCellBorderStyle.None
            End If

            With dataGridViewAdvancedBorderStylePlaceHolder
                .Bottom = DataGridViewAdvancedCellBorderStyle.Single
                .Right = dataGridViewAdvancedBorderStyleInput.Right
                .Top = dataGridViewAdvancedBorderStyleInput.Top
            End With

            Return dataGridViewAdvancedBorderStylePlaceHolder
        End Function
    End Class

    Public Class DataGridViewCustomColumn
        Inherits DataGridViewColumn

        Public Sub New()
            Me.CellTemplate = New DataGridViewCustomCell()
        End Sub
    End Class

    Public Class DataGridViewCustomCell
        Inherits DataGridViewTextBoxCell

        Public Overrides Function AdjustCellBorderStyle( _
            ByVal dataGridViewAdvancedBorderStyleInput As DataGridViewAdvancedBorderStyle, _
            ByVal dataGridViewAdvancedBorderStylePlaceHolder As DataGridViewAdvancedBorderStyle, _
            ByVal singleVerticalBorderAdded As Boolean, _
            ByVal singleHorizontalBorderAdded As Boolean, _
            ByVal firstVisibleColumn As Boolean, _
            ByVal firstVisibleRow As Boolean) As DataGridViewAdvancedBorderStyle

            ' Customize the top border of cells in the first row and the 
            ' right border of cells in the first column. Use the input style 
            ' for all other borders.
            If firstVisibleColumn Then
                dataGridViewAdvancedBorderStylePlaceHolder.Left = _
                    DataGridViewAdvancedCellBorderStyle.OutsetDouble
            Else
                dataGridViewAdvancedBorderStylePlaceHolder.Left = _
                    DataGridViewAdvancedCellBorderStyle.None
            End If

            If firstVisibleRow Then
                dataGridViewAdvancedBorderStylePlaceHolder.Top = _
                    DataGridViewAdvancedCellBorderStyle.InsetDouble
            Else
                dataGridViewAdvancedBorderStylePlaceHolder.Top = _
                    DataGridViewAdvancedCellBorderStyle.None
            End If

            With dataGridViewAdvancedBorderStylePlaceHolder
                .Right = dataGridViewAdvancedBorderStyleInput.Right
                .Bottom = dataGridViewAdvancedBorderStyleInput.Bottom
            End With

            Return dataGridViewAdvancedBorderStylePlaceHolder
        End Function
    End Class

    Public Class DataGridViewCustomRow
        Inherits DataGridViewRow

        Public Overrides Function AdjustRowHeaderBorderStyle( _
            ByVal dataGridViewAdvancedBorderStyleInput As DataGridViewAdvancedBorderStyle, _
            ByVal dataGridViewAdvancedBorderStylePlaceHolder As DataGridViewAdvancedBorderStyle, _
            ByVal singleVerticalBorderAdded As Boolean, _
            ByVal singleHorizontalBorderAdded As Boolean, _
            ByVal isFirstDisplayedRow As Boolean, _
            ByVal isLastDisplayedRow As Boolean) As DataGridViewAdvancedBorderStyle

            ' Customize the top border of the first row header and the
            ' right border of all the row headers. Use the input style for 
            ' all other borders.
            If isFirstDisplayedRow Then
                dataGridViewAdvancedBorderStylePlaceHolder.Top = _
                    DataGridViewAdvancedCellBorderStyle.InsetDouble
            Else
                dataGridViewAdvancedBorderStylePlaceHolder.Top = _
                    DataGridViewAdvancedCellBorderStyle.None
            End If

            With dataGridViewAdvancedBorderStylePlaceHolder
                .Right = DataGridViewAdvancedCellBorderStyle.OutsetDouble
                .Left = dataGridViewAdvancedBorderStyleInput.Left
                .Bottom = dataGridViewAdvancedBorderStyleInput.Bottom
            End With

            Return dataGridViewAdvancedBorderStylePlaceHolder
        End Function
    End Class

End Namespace

The DataGridView control allows you to fully customize its appearance, including the borders of the cells and headers. The DataGridView has CellBorderStyle, ColumnHeadersBorderStyle, and RowHeadersBorderStyle properties that allow you to set the appearance of the cell border. However, if you need to further customize the borders, the DataGridViewAdvancedBorderStyle class allows you to set the style of the border on the individual sides of the cells. The Left, Right, Top, and Bottom properties of DataGridViewAdvancedBorderStyle represent the left, right, top, and bottom border of a cell, respectively. You can set these properties on the AdvancedCellBorderStyle, AdvancedColumnHeadersBorderStyle, AdvancedRowHeadersBorderStyle properties of the DataGridView to produce various appearances for the borders between the cells.

• DataGridView
• CellBorderStyle
• ColumnHeadersBorderStyle
• RowHeadersBorderStyle
• AdvancedCellBorderStyle
• AdvancedColumnHeadersBorderStyle
• AdvancedRowHeadersBorderStyle