可编辑的ListView控件

/// <summary>

/// 列风格枚举

/// </summary>

public enum ALAN_ListViewColumnStyle

{

    ReadOnly, //只读

    EditBox,  //编辑状态下显示为文本框

    ComboBox  //编辑状态下显示为组合框

};

/// <summary>

/// 列描述

/// </summary>

public class ALAN_ColumnHeader : ColumnHeader

{

    private ALAN_ListViewColumnStyle cs; //本列的风格

    public ALAN_ColumnHeader() : base()

    {

       cs = ALAN_ListViewColumnStyle.ReadOnly;

    }

    public ALAN_ColumnHeader(ALAN_ListViewColumnStyle _cs)

    {

       cs = _cs;

    }

    public ALAN_ListViewColumnStyle ColumnStyle

    {

       get { return cs; }

       set { cs = value;}

    }

}

 

/// <summary>

/// 可编辑的ListView控件

/// </summary>

public class ALAN_EditListView : ListView

{

    private ListViewItem m_currentLVItem;    

    private int m_nX=0;

    private int m_nY=0;

    private string m_strSubItemText ;

    private int m_nSubItemSelected = 0 ;

    private ComboBox[] m_arrComboBoxes = new ComboBox[20];

    private System.Windows.Forms.TextBox  editBox;

    private Font m_fontComboBox;

    private Font m_fontEdit;

    private Color m_bgcolorComboBox;

    private Color m_bgcolorEdit;

 

    public ALAN_EditListView()

    {

       editBox = new System.Windows.Forms.TextBox();

       this.ComboBoxFont = this.Font;

       this.EditFont = this.Font;

      

       this.EditBgColor = Color.LightBlue;

       this.m_bgcolorComboBox = Color.LightBlue;

       this.MouseDown += new System.Windows.Forms.MouseEventHandler(this.SMKMouseDown);

       this.DoubleClick += new System.EventHandler(this.SMKDoubleClick);

       this.GridLines = true ;

      

       editBox.Size  = new System.Drawing.Size(0,0);

       editBox.Location = new System.Drawing.Point(0,0);

       this.Controls.AddRange(new System.Windows.Forms.Control[] {this.editBox});

       editBox.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.EditOver);

       editBox.LostFocus += new System.EventHandler(this.FocusOver);

       editBox.AutoSize = true;

       editBox.Font = this.EditFont;

       editBox.BackColor = this.EditBgColor;

       editBox.BorderStyle = BorderStyle.FixedSingle;

       editBox.Hide();

       editBox.Text = "";

    }

 

    public Font ComboBoxFont

    {

       get { return this.m_fontComboBox; }

       set { this.m_fontComboBox = value;}

    }

 

    public Color ComboBoxBgColor

    {

       get { return this.m_bgcolorComboBox; }

       set

       {

           this.m_bgcolorComboBox = value;

           for(int i=0; i<this.m_arrComboBoxes.Length; i++)

           {

              if (m_arrComboBoxes[i] != null)

                  m_arrComboBoxes[i].BackColor = this.m_bgcolorComboBox;

           }

       }     

    }

 

    public Font EditFont

    {

       get { return this.m_fontEdit; }

       set

       {

           this.m_fontEdit = value;

           this.editBox.Font = this.m_fontEdit;

       }

    }

 

    public Color EditBgColor

    {

       get { return this.m_bgcolorEdit; }

       set

       {

           this.m_bgcolorEdit = value;

           this.editBox.BackColor = this.m_bgcolorEdit;

       }

    }

 

    public void SetColumn(int columnIndex, ALAN_ListViewColumnStyle cs)

    {

       if (columnIndex<0 || columnIndex>this.Columns.Count)

           throw new Exception("Column index is out of range");

           ((ALAN_ColumnHeader)Columns[columnIndex]).ColumnStyle = cs;

    }

 

    public void BoundListToColumn(int columnIndex, string[] items)

    {

       if (columnIndex<0 || columnIndex>this.Columns.Count)

           throw new Exception("Column index is out of range");

       if ( ((ALAN_ColumnHeader)Columns[columnIndex]).ColumnStyle != ALAN_ListViewColumnStyle.ComboBox)

           throw new Exception("Column should be ComboBox style");

 

       ComboBox newbox = new ComboBox();

       for(int i=0; i<items.Length; i++)

           newbox.Items.Add(items[i]);

       newbox.Size  = new System.Drawing.Size(0,0);

       newbox.Location = new System.Drawing.Point(0,0);

       this.Controls.AddRange(new System.Windows.Forms.Control[] {newbox});        

       newbox.SelectedIndexChanged += new System.EventHandler(this.CmbSelected);

       newbox.LostFocus += new System.EventHandler(this.CmbFocusOver);

       newbox.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.CmbKeyPress);

       newbox.Font = this.ComboBoxFont;

       newbox.BackColor = this.ComboBoxBgColor;

       newbox.DropDownStyle = ComboBoxStyle.DropDownList;

       newbox.Hide();

       this.m_arrComboBoxes[columnIndex] = newbox;

    }

 

    private void CmbKeyPress(object sender , System.Windows.Forms.KeyPressEventArgs e)

    {

       ComboBox cmbBox = (ComboBox)sender;

       if ( e.KeyChar == 13 || e.KeyChar == 27 ) //CR or ESC press

       {

           cmbBox.Hide();

       }

    }

 

    private void CmbSelected(object sender , System.EventArgs e)

    {

       ComboBox cmbBox = (ComboBox)sender;

       int sel = cmbBox.SelectedIndex;

       if ( sel >= 0 )

       {

           string itemSel = cmbBox.Items[sel].ToString();

           m_currentLVItem.SubItems[m_nSubItemSelected].Text = itemSel;

       }

    }

 

    private void CmbFocusOver(object sender , System.EventArgs e)

    {

       ComboBox cmbBox = (ComboBox)sender;

       cmbBox.Hide() ;

    }

   

    private void EditOver(object sender, System.Windows.Forms.KeyPressEventArgs e)

    {

       if ( e.KeyChar == 13 )

       {

           m_currentLVItem.SubItems[m_nSubItemSelected].Text = editBox.Text;

           editBox.Hide();

       }

 

       if ( e.KeyChar == 27 )

           editBox.Hide();

    }

 

    private void FocusOver(object sender, System.EventArgs e)

    {

       m_currentLVItem.SubItems[m_nSubItemSelected].Text = editBox.Text;

       editBox.Hide();

    }

 

    public  void SMKDoubleClick(object sender, System.EventArgs e)

    {

       // Check the subitem clicked .

       int nStart = m_nX ; //current mouse down X position

       int spos = 0 ;

       int epos = this.Columns[0].Width ;

       for ( int i=0; i < this.Columns.Count ; i++)

       {

           if ( nStart > spos && nStart < epos )

           {

              m_nSubItemSelected = i ;

              break;

           }

          

           spos = epos ;

           epos += this.Columns[i].Width;

       }

      

       m_strSubItemText = m_currentLVItem.SubItems[m_nSubItemSelected].Text ;

 

       ALAN_ColumnHeader column = (ALAN_ColumnHeader)Columns[m_nSubItemSelected];

       if ( column.ColumnStyle == ALAN_ListViewColumnStyle.ComboBox )

       {

           ComboBox cmbBox = this.m_arrComboBoxes[m_nSubItemSelected];

           if (cmbBox == null)

              throw new Exception("The ComboxBox control bind to current column is null");

           Rectangle r = new Rectangle(spos , m_currentLVItem.Bounds.Y , epos , m_currentLVItem.Bounds.Bottom);

           cmbBox.Size  = new System.Drawing.Size(epos - spos , m_currentLVItem.Bounds.Bottom-m_currentLVItem.Bounds.Top);

           cmbBox.Location = new System.Drawing.Point(spos , m_currentLVItem.Bounds.Y);

           cmbBox.Show() ;

           cmbBox.Text = m_strSubItemText;

           cmbBox.SelectAll() ;

           cmbBox.Focus();

       }

       if ( column.ColumnStyle == ALAN_ListViewColumnStyle.EditBox )

       {

           Rectangle r = new Rectangle(spos , m_currentLVItem.Bounds.Y , epos , m_currentLVItem.Bounds.Bottom);

           editBox.Size  = new System.Drawing.Size(epos - spos , m_currentLVItem.Bounds.Height);

           editBox.Location = new System.Drawing.Point(spos , m_currentLVItem.Bounds.Y);

           editBox.Show() ;

           editBox.Text = m_strSubItemText;

           editBox.SelectAll() ;

           editBox.Focus();

       }

    }

 

    public void SMKMouseDown(object sender, System.Windows.Forms.MouseEventArgs e)

       {

           m_currentLVItem = this.GetItemAt(e.X , e.Y);

           m_nX = e.X ;

           m_nY = e.Y ;

       }

    }

}

this.listView1 = new ALAN_EditListView();

///////////////////////

///add the columns

ALAN_ColumnHeader header1 = new ALAN_ColumnHeader(ALAN_ListViewColumnStyle.ReadOnly);

header1.Width = 120;

header1.Text = "姓名";

this.listView1.Columns.Add(header1);

ALAN_ColumnHeader header2 = new ALAN_ColumnHeader(ALAN_ListViewColumnStyle.EditBox);

header2.Width = 120;

header2.Text = "性别";

this.listView1.Columns.Add(header2);

ALAN_ColumnHeader header3 = new ALAN_ColumnHeader(ALAN_ListViewColumnStyle.EditBox);

header3.Width = 120;

header3.Text = "年龄";

this.listView1.Columns.Add(header3);

ALAN_ColumnHeader header4 = new ALAN_ColumnHeader(ALAN_ListViewColumnStyle.ComboBox);

header4.Width = 120;

header4.Text = "专业";

this.listView1.Columns.Add(header4);

ALAN_ColumnHeader header5 = new ALAN_ColumnHeader(ALAN_ListViewColumnStyle.ComboBox);

header5.Width = 120;

header5.Text = "轮休";

this.listView1.Columns.Add(header5);

///////////////////////

///bound the combox        

this.listView1.BoundListToColumn(3, new string[]{"Lotus", "SQL Server", ".NET", "VB"});

this.listView1.BoundListToColumn(4, new string[]{"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"});

/////////////////////////////////////

///set edit state font and backcolor

//this.listView1.ComboBoxBgColor = Color.LightYellow;

this.listView1.ComboBoxFont = new System.Drawing.Font("Microsoft Sans Serif", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));

this.listView1.EditFont = new System.Drawing.Font("Microsoft Sans Serif", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));

///////////////////////

///add rows

string[] s = new string[5];

s[0] = "张三" ;

s[1] = "男";

s[2] = "24" ;

s[3] = ".NET" ;

s[4] = "Sun";

this.listView1.Items.Add( new ListViewItem(s));

 

s[0] = "李四" ;

s[1] = "男";

s[2] = "25" ;

s[3] = "SQL Server" ;

s[4] = "Mon";

this.listView1.Items.Add( new ListViewItem(s));

 

s[0] = "王五" ;

s[1] = "男";

s[2] = "23" ;

s[3] = "VB" ;

s[4] = "Tue";

this.listView1.Items.Add( new ListViewItem(s));

 

s[0] = "赵六" ;

s[1] = "女";

s[2] = "22" ;

s[3] = "Lotus" ;

s[4] = "Wed";

this.listView1.Items.Add( new ListViewItem(s));

///////////////////////////

///other common attributs

this.listView1.Dock = System.Windows.Forms.DockStyle.Fill;

this.listView1.Font = new System.Drawing.Font("Microsoft Sans Serif", 9.75F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));

this.listView1.FullRowSelect = true;

this.listView1.Name = "listView1";

this.listView1.Size = new System.Drawing.Size(448, 273);

this.listView1.TabIndex = 0;

this.listView1.View = System.Windows.Forms.View.Details;

this.Controls.AddRange(new System.Windows.Forms.Control[] {

                                                        this.listView1});