DataGridViewAdvancedBorderStyle Classe

  • Riferimento

Definizione

Spazio dei nomi:
System.Windows.Forms
Assembly:
System.Windows.Forms.dll

Contiene gli stili per i bordi delle celle di un controllo DataGridView.

public ref class DataGridViewAdvancedBorderStyle sealed : ICloneable
public sealed class DataGridViewAdvancedBorderStyle : ICloneable
type DataGridViewAdvancedBorderStyle = class
    interface ICloneable
Public NotInheritable Class DataGridViewAdvancedBorderStyle
Implements ICloneable
Ereditarietà
Object
DataGridViewAdvancedBorderStyle
Implementazioni
ICloneable

Esempio

Nell'esempio di codice seguente vengono modificati i bordi delle celle di un oggetto DataGridView in modo che un doppio bordo separa le celle interne e la cella di intestazione superiore sinistra dalle intestazioni di riga e colonna. Questo esempio illustra come eseguire l'override dei AdjustColumnHeaderBorderStylemetodi , AdjustRowHeaderBorderStylee AdjustCellBorderStyle e della AdjustedTopLeftHeaderBorderStyle proprietà . Questi membri usano DataGridViewAdvancedBorderStyle oggetti per modificare i singoli bordi delle celle.

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

Commenti

Il DataGridView controllo consente di personalizzarne completamente l'aspetto, inclusi i bordi delle celle e delle intestazioni. Ha DataGridViewCellBorderStyleproprietà , ColumnHeadersBorderStylee RowHeadersBorderStyle che consentono di impostare l'aspetto del bordo della cella. Tuttavia, se è necessario personalizzare ulteriormente i bordi, la DataGridViewAdvancedBorderStyle classe consente di impostare lo stile del bordo sui singoli lati delle celle. Le Leftproprietà , Right, Tope Bottom di DataGridViewAdvancedBorderStyle rappresentano rispettivamente il bordo sinistro, destro, superiore e inferiore di una cella. È possibile impostare queste proprietà sulle AdvancedCellBorderStyleproprietà , , AdvancedColumnHeadersBorderStyleAdvancedRowHeadersBorderStyle dell'oggetto DataGridView per produrre vari aspetti per i bordi tra le celle.

Costruttori

DataGridViewAdvancedBorderStyle()

Inizializza una nuova istanza della classe DataGridViewAdvancedBorderStyle.

Proprietà

All

Ottiene o imposta lo stile del bordo per tutti i bordi di una cella.
Bottom

Ottiene o imposta lo stile del bordo inferiore di una cella.
Left

Ottiene lo stile del bordo sinistro di una cella.
Right

Ottiene lo stile del bordo destro di una cella.
Top

Ottiene lo stile del bordo superiore di una cella.

Metodi

Equals(Object)

Determina se l'oggetto specificato è uguale all'oggetto DataGridViewAdvancedBorderStyle corrente.
GetHashCode()

Svolge una funzione hash per un tipo particolare.
GetType()

Ottiene l'oggetto Type dell'istanza corrente.

(Ereditato da Object)
MemberwiseClone()

Crea una copia superficiale dell'oggetto Object corrente.

(Ereditato da Object)
ToString()

Restituisce una stringa che rappresenta l'oggetto DataGridViewAdvancedBorderStyle.

Implementazioni dell'interfaccia esplicita

ICloneable.Clone()

Crea un nuovo oggetto che è una copia dell'istanza corrente.

Si applica a

Vedi anche