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HOW TO:建立未繫結的 Windows Form DataGridView 控制項

更新:2007 年 11 月

下列程式碼範例示範如何以程式設計方式填入 DataGridView 控制項,而不用將此控制項繫結至資料來源。當您擁有想以資料表格式來顯示的少量資料時,這將會非常有用。

如需這個程式碼範例的完整說明,請參閱逐步解說:建立未繫結的 Windows Form DataGridView 控制項

範例

Imports System
Imports System.Drawing
Imports System.Windows.Forms

Public Class Form1
    Inherits System.Windows.Forms.Form

    Private buttonPanel As New Panel
    Private WithEvents songsDataGridView As New DataGridView
    Private WithEvents addNewRowButton As New Button
    Private WithEvents deleteRowButton As New Button

    Private Sub Form1_Load(ByVal sender As System.Object, _
        ByVal e As System.EventArgs) Handles MyBase.Load

        SetupLayout()
        SetupDataGridView()
        PopulateDataGridView()

    End Sub

    Private Sub songsDataGridView_CellFormatting(ByVal sender As Object, _
        ByVal e As System.Windows.Forms.DataGridViewCellFormattingEventArgs) _
        Handles songsDataGridView.CellFormatting

        If Me.songsDataGridView.Columns(e.ColumnIndex).Name = _
            "Release Date" Then

            If e IsNot Nothing Then
                If e.Value IsNot Nothing Then
                    Try
                        e.Value = DateTime.Parse(e.Value.ToString()) _
                            .ToLongDateString()
                        e.FormattingApplied = True
                    Catch ex As FormatException
                        Console.WriteLine("{0} is not a valid date.", e.Value.ToString())
                    End Try
                End If
            End If

        End If

    End Sub

    Private Sub addNewRowButton_Click(ByVal sender As Object, _
        ByVal e As EventArgs) Handles addNewRowButton.Click

        Me.songsDataGridView.Rows.Add()

    End Sub

    Private Sub deleteRowButton_Click(ByVal sender As Object, _
        ByVal e As EventArgs) Handles deleteRowButton.Click

        If Me.songsDataGridView.SelectedRows.Count > 0 AndAlso _
            Not Me.songsDataGridView.SelectedRows(0).Index = _
            Me.songsDataGridView.Rows.Count - 1 Then

            Me.songsDataGridView.Rows.RemoveAt( _
                Me.songsDataGridView.SelectedRows(0).Index)

        End If

    End Sub

    Private Sub SetupLayout()

        Me.Size = New Size(600, 500)

        With addNewRowButton
            .Text = "Add Row"
            .Location = New Point(10, 10)
        End With

        With deleteRowButton
            .Text = "Delete Row"
            .Location = New Point(100, 10)
        End With

        With buttonPanel
            .Controls.Add(addNewRowButton)
            .Controls.Add(deleteRowButton)
            .Height = 50
            .Dock = DockStyle.Bottom
        End With

        Me.Controls.Add(Me.buttonPanel)

    End Sub

    Private Sub SetupDataGridView()

        Me.Controls.Add(songsDataGridView)

        songsDataGridView.ColumnCount = 5
        With songsDataGridView.ColumnHeadersDefaultCellStyle
            .BackColor = Color.Navy
            .ForeColor = Color.White
            .Font = New Font(songsDataGridView.Font, FontStyle.Bold)
        End With

        With songsDataGridView
            .Name = "songsDataGridView"
            .Location = New Point(8, 8)
            .Size = New Size(500, 250)
            .AutoSizeRowsMode = _
                DataGridViewAutoSizeRowsMode.DisplayedCellsExceptHeaders
            .ColumnHeadersBorderStyle = DataGridViewHeaderBorderStyle.Single
            .CellBorderStyle = DataGridViewCellBorderStyle.Single
            .GridColor = Color.Black
            .RowHeadersVisible = False

            .Columns(0).Name = "Release Date"
            .Columns(1).Name = "Track"
            .Columns(2).Name = "Title"
            .Columns(3).Name = "Artist"
            .Columns(4).Name = "Album"
            .Columns(4).DefaultCellStyle.Font = _
                New Font(Me.songsDataGridView.DefaultCellStyle.Font, FontStyle.Italic)

            .SelectionMode = DataGridViewSelectionMode.FullRowSelect
            .MultiSelect = False
            .Dock = DockStyle.Fill
        End With

    End Sub

    Private Sub PopulateDataGridView()

        Dim row0 As String() = {"11/22/1968", "29", "Revolution 9", _
            "Beatles", "The Beatles [White Album]"}
        Dim row1 As String() = {"1960", "6", "Fools Rush In", _
            "Frank Sinatra", "Nice 'N' Easy"}
        Dim row2 As String() = {"11/11/1971", "1", "One of These Days", _
            "Pink Floyd", "Meddle"}
        Dim row3 As String() = {"1988", "7", "Where Is My Mind?", _
            "Pixies", "Surfer Rosa"}
        Dim row4 As String() = {"5/1981", "9", "Can't Find My Mind", _
            "Cramps", "Psychedelic Jungle"}
        Dim row5 As String() = {"6/10/2003", "13", _
            "Scatterbrain. (As Dead As Leaves.)", _
            "Radiohead", "Hail to the Thief"}
        Dim row6 As String() = {"6/30/1992", "3", "Dress", "P J Harvey", "Dry"}

        With Me.songsDataGridView.Rows
            .Add(row0)
            .Add(row1)
            .Add(row2)
            .Add(row3)
            .Add(row4)
            .Add(row5)
            .Add(row6)
        End With

        With Me.songsDataGridView
            .Columns(0).DisplayIndex = 3
            .Columns(1).DisplayIndex = 4
            .Columns(2).DisplayIndex = 0
            .Columns(3).DisplayIndex = 1
            .Columns(4).DisplayIndex = 2
        End With

    End Sub


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

End Class
using System;
using System.Drawing;
using System.Windows.Forms;

public class Form1 : System.Windows.Forms.Form
{
    private Panel buttonPanel = new Panel();
    private DataGridView songsDataGridView = new DataGridView();
    private Button addNewRowButton = new Button();
    private Button deleteRowButton = new Button();

    public Form1()
    {
        this.Load += new EventHandler(Form1_Load);
    }

    private void Form1_Load(System.Object sender, System.EventArgs e)
    {
        SetupLayout();
        SetupDataGridView();
        PopulateDataGridView();
    }

    private void songsDataGridView_CellFormatting(object sender,
        System.Windows.Forms.DataGridViewCellFormattingEventArgs e)
    {
        if (this.songsDataGridView.Columns[e.ColumnIndex].Name == "Release Date")
        {
            if (e != null)
            {
                if (e.Value != null)
                {
                    try
                    {
                        e.Value = DateTime.Parse(e.Value.ToString())
                            .ToLongDateString();
                        e.FormattingApplied = true;
                    }
                    catch (FormatException)
                    {
                        Console.WriteLine("{0} is not a valid date.", e.Value.ToString());
                    }
                }
            }
        }
    }

    private void addNewRowButton_Click(object sender, EventArgs e)
    {
        this.songsDataGridView.Rows.Add();
    }

    private void deleteRowButton_Click(object sender, EventArgs e)
    {
        if (this.songsDataGridView.SelectedRows.Count > 0 &&
            this.songsDataGridView.SelectedRows[0].Index !=
            this.songsDataGridView.Rows.Count - 1)
        {
            this.songsDataGridView.Rows.RemoveAt(
                this.songsDataGridView.SelectedRows[0].Index);
        }
    }

    private void SetupLayout()
    {
        this.Size = new Size(600, 500);

        addNewRowButton.Text = "Add Row";
        addNewRowButton.Location = new Point(10, 10);
        addNewRowButton.Click += new EventHandler(addNewRowButton_Click);

        deleteRowButton.Text = "Delete Row";
        deleteRowButton.Location = new Point(100, 10);
        deleteRowButton.Click += new EventHandler(deleteRowButton_Click);

        buttonPanel.Controls.Add(addNewRowButton);
        buttonPanel.Controls.Add(deleteRowButton);
        buttonPanel.Height = 50;
        buttonPanel.Dock = DockStyle.Bottom;

        this.Controls.Add(this.buttonPanel);
    }

    private void SetupDataGridView()
    {
        this.Controls.Add(songsDataGridView);

        songsDataGridView.ColumnCount = 5;

        songsDataGridView.ColumnHeadersDefaultCellStyle.BackColor = Color.Navy;
        songsDataGridView.ColumnHeadersDefaultCellStyle.ForeColor = Color.White;
        songsDataGridView.ColumnHeadersDefaultCellStyle.Font =
            new Font(songsDataGridView.Font, FontStyle.Bold);

        songsDataGridView.Name = "songsDataGridView";
        songsDataGridView.Location = new Point(8, 8);
        songsDataGridView.Size = new Size(500, 250);
        songsDataGridView.AutoSizeRowsMode =
            DataGridViewAutoSizeRowsMode.DisplayedCellsExceptHeaders;
        songsDataGridView.ColumnHeadersBorderStyle =
            DataGridViewHeaderBorderStyle.Single;
        songsDataGridView.CellBorderStyle = DataGridViewCellBorderStyle.Single;
        songsDataGridView.GridColor = Color.Black;
        songsDataGridView.RowHeadersVisible = false;

        songsDataGridView.Columns[0].Name = "Release Date";
        songsDataGridView.Columns[1].Name = "Track";
        songsDataGridView.Columns[2].Name = "Title";
        songsDataGridView.Columns[3].Name = "Artist";
        songsDataGridView.Columns[4].Name = "Album";
        songsDataGridView.Columns[4].DefaultCellStyle.Font =
            new Font(songsDataGridView.DefaultCellStyle.Font, FontStyle.Italic);

        songsDataGridView.SelectionMode =
            DataGridViewSelectionMode.FullRowSelect;
        songsDataGridView.MultiSelect = false;
        songsDataGridView.Dock = DockStyle.Fill;

        songsDataGridView.CellFormatting += new
            DataGridViewCellFormattingEventHandler(
            songsDataGridView_CellFormatting);
    }

    private void PopulateDataGridView()
    {

        string[] row0 = { "11/22/1968", "29", "Revolution 9", 
            "Beatles", "The Beatles [White Album]" };
        string[] row1 = { "1960", "6", "Fools Rush In", 
            "Frank Sinatra", "Nice 'N' Easy" };
        string[] row2 = { "11/11/1971", "1", "One of These Days", 
            "Pink Floyd", "Meddle" };
        string[] row3 = { "1988", "7", "Where Is My Mind?", 
            "Pixies", "Surfer Rosa" };
        string[] row4 = { "5/1981", "9", "Can't Find My Mind", 
            "Cramps", "Psychedelic Jungle" };
        string[] row5 = { "6/10/2003", "13", 
            "Scatterbrain. (As Dead As Leaves.)", 
            "Radiohead", "Hail to the Thief" };
        string[] row6 = { "6/30/1992", "3", "Dress", "P J Harvey", "Dry" };

        songsDataGridView.Rows.Add(row0);
        songsDataGridView.Rows.Add(row1);
        songsDataGridView.Rows.Add(row2);
        songsDataGridView.Rows.Add(row3);
        songsDataGridView.Rows.Add(row4);
        songsDataGridView.Rows.Add(row5);
        songsDataGridView.Rows.Add(row6);

        songsDataGridView.Columns[0].DisplayIndex = 3;
        songsDataGridView.Columns[1].DisplayIndex = 4;
        songsDataGridView.Columns[2].DisplayIndex = 0;
        songsDataGridView.Columns[3].DisplayIndex = 1;
        songsDataGridView.Columns[4].DisplayIndex = 2;
    }


    [STAThreadAttribute()]
    static void Main()
    {
        Application.EnableVisualStyles();
        Application.Run(new Form1());
    }
}

編譯程式碼

這項範例需要:

  • System、System.Drawing 和 System.Windows.Forms 組件的參考。

如需從 Visual Basic 或 Visual C# 的命令列建置這個範例的詳細資訊,請參閱從命令列建置 (Visual Basic)使用 csc.exe 建置命令列。您也可以透過將程式碼貼入新的專案,在 Visual Studio 中建置此範例。

請參閱

工作

逐步解說:建立未繫結的 Windows Form DataGridView 控制項

概念

Windows Form DataGridView 控制項的資料顯示模式

參考

DataGridView

其他資源

在 Windows Form DataGridView 控制項中顯示資料