| ListView控件是一个在Windows应用程序中使用频率比较高的一个，通常使用它来显示数据报表。很多情况下，我们不仅仅使用ListView来显示数据，还要求编辑其中的数据。但是.NET提供的ListView控件的编辑功能十分有限，只能编辑首列，编辑格式只能为文本框，等等，使用起来甚为不便。因此本人新写了一个类，扩充了其功能，客户程序员可以设置任何列的格式(只读，编辑状态下文本框，编辑状态下组合框)，界面如图： | ||
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| 源代码在此下载：/Files/hcfalan/EditableListView.rar | ||
| 摘录部分源代码如下： | ||
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1
  /**//// <summary> 2  /// 列描述 3  /// </summary> 4  public class ALAN_ColumnHeader : ColumnHeader 5  { 6 private ALAN_ListViewColumnStyle cs; //本列的风格 7 8 public ALAN_ColumnHeader() : base() 9   { 10 cs = ALAN_ListViewColumnStyle.ReadOnly; 11  } 12 13 public ALAN_ColumnHeader(ALAN_ListViewColumnStyle _cs) 14 { 15 cs = _cs; 16 } 17 18 public ALAN_ListViewColumnStyle ColumnStyle 19 { 20 get { return cs; } 21 set { cs = value;} 22 } 23 }; 24 25 /**//// <summary> 26 /// 可编辑的ListView控件 27 /// </summary> 28 public class ALAN_EditListView : ListView 29 { 30 31 private ListViewItem m_currentLVItem; 32 33 private int m_nX=0; 34 35 private int m_nY=0; 36 37 private string m_strSubItemText ; 38 39 private int m_nSubItemSelected = 0 ; 40 41 private ComboBox[] m_arrComboBoxes = new ComboBox[20]; 42 43 private System.Windows.Forms.TextBox editBox; 44 45 private Font m_fontComboBox; 46 47 private Font m_fontEdit; 48 49 private Color m_bgcolorComboBox; 50 51 private Color m_bgcolorEdit; 52 53 54 55 public ALAN_EditListView() 56 { 57 58 editBox = new System.Windows.Forms.TextBox(); 59 60 this.ComboBoxFont = this.Font; 61 62 this.EditFont = this.Font; 63 64 65 66 this.EditBgColor = Color.LightBlue; 67 68 this.m_bgcolorComboBox = Color.LightBlue; 69 70 this.MouseDown += new System.Windows.Forms.MouseEventHandler(this.SMKMouseDown); 71 72 this.DoubleClick += new System.EventHandler(this.SMKDoubleClick); 73 74 this.GridLines = true ; 75 76 77 78 editBox.Size = new System.Drawing.Size(0,0); 79 80 editBox.Location = new System.Drawing.Point(0,0); 81 82 this.Controls.AddRange(new System.Windows.Forms.Control[] {this.editBox}); 83 84 editBox.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.EditOver); 85 86 editBox.LostFocus += new System.EventHandler(this.FocusOver); 87 88 editBox.AutoSize = true; 89 90 editBox.Font = this.EditFont; 91 92 editBox.BackColor = this.EditBgColor; 93 94 editBox.BorderStyle = BorderStyle.FixedSingle; 95 96 editBox.Hide(); 97 98 editBox.Text = ""; 99 100 } 101 102 103 104 public Font ComboBoxFont 105 { 106 107 get { return this.m_fontComboBox; } 108 109 set { this.m_fontComboBox = value;} 110 111 } 112 113 114 115 public Color ComboBoxBgColor 116 { 117 118 get { return this.m_bgcolorComboBox; } 119 120 set 121 122 { 123 124 this.m_bgcolorComboBox = value; 125 126 for(int i=0; i<this.m_arrComboBoxes.Length; i++) 127 128 { 129 130 if (m_arrComboBoxes[i] != null) 131 132 m_arrComboBoxes[i].BackColor = this.m_bgcolorComboBox; 133 134 } 135 136 } 137 138 } 139 140 141 142 public Font EditFont 143 { 144 145 get { return this.m_fontEdit; } 146 147 set 148 149 { 150 151 this.m_fontEdit = value; 152 153 this.editBox.Font = this.m_fontEdit; 154 155 } 156 157 } 158 159 160 161 public Color EditBgColor 162 { 163 164 get { return this.m_bgcolorEdit; } 165 166 set 167 168 { 169 170 this.m_bgcolorEdit = value; 171 172 this.editBox.BackColor = this.m_bgcolorEdit; 173 174 } 175 176 } 177 178 179 180 public void SetColumn(int columnIndex, ALAN_ListViewColumnStyle cs) 181 { 182 183 if (columnIndex<0 || columnIndex>this.Columns.Count) |