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VS2005已经发布好久了，但对DataGridView 的使用,在网上的资料还比较少,DataGridView 无论是美观与功能方面都是DataGrid所不能比的,应该说DataGridView 不是DataGrid的升级,因为DataGridView 使用了一套全新的构建方式,引入了DataGridViewCell ,DataGridViewColumn,DataGridViewRow,等,新的概念,也使编程更容易了,它提供了
DataGridViewTextBoxColumn,DataGridViewImageColumn,DataGridLinkColumn,DataGridViewComboBoxColumn,DataGrid
ViewButtonColumn,DataGridViewCheckBoxColumn,等样式列
但我们常用的远不只这些样式列,所以我不想把所有的样式列都给大家做出来,我只是想抛砖引玉通过我自己做的四个样式列来让大家掌握自定义DataGridView样式列的方法．由于时间仓促功能不是很完善，望大家见谅，好了大家先看看4个控件的效果．
一：
DataGridViewMaskedTextBoxColumn(正则表达式样式列)
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Text;
using System.Windows.Forms;
using System.Drawing.Design;
namespace WindowsApplication23
{
//Cell编辑类，实现IDataGridViewEditingControl接口,可参照ComboBoxEditingControl的写法
public
class DataGridViewMaskedTextBoxEditingControl:MaskedTextBox,IDataGridViewEditingControl
{
protected
int rowIndex;
protected DataGridView dataGridView;
protected
bool valueChanged =
false;
public DataGridViewMaskedTextBoxEditingControl()
{
base.TabStop =
false;
}
//重写基类(MakedTextBox)的OnTextChanged方法
protected
override
void OnTextChanged(EventArgs e)
{
base.OnTextChanged(e);
NotifyDataGridViewOfValueChange();
}
// 当text值发生变化时，通知DataGridView
private
void NotifyDataGridViewOfValueChange()
{
valueChanged =
true;
dataGridView.NotifyCurrentCellDirty(true);
}
/**////
<summary>
/// 设置对齐方式
///
</summary>
///
<param name="align"></param>
///
<returns></returns>
private
static HorizontalAlignment translateAlignment(DataGridViewContentAlignment align)
{
switch (align)
{
case DataGridViewContentAlignment.TopLeft:
case DataGridViewContentAlignment.MiddleLeft:
case DataGridViewContentAlignment.BottomLeft:
return HorizontalAlignment.Left;
case DataGridViewContentAlignment.TopCenter:
case DataGridViewContentAlignment.MiddleCenter:
case DataGridViewContentAlignment.BottomCenter:
return HorizontalAlignment.Center;
case DataGridViewContentAlignment.TopRight:
case DataGridViewContentAlignment.MiddleRight:
case DataGridViewContentAlignment.BottomRight:
return HorizontalAlignment.Right;
}
return HorizontalAlignment.Left;
}
/**////
<summary>
/// 在Cell被编辑的时候光标显示
///
</summary>
public Cursor EditingPanelCursor
{
get
{
return Cursors.IBeam;
}
}
/**////
<summary>
/// 获取或设置所在的DataGridView
///
</summary>
public DataGridView EditingControlDataGridView
{
get
{
return dataGridView;
}
set
{
dataGridView = value;
}
}
/**////
<summary>
/// 获取或设置格式化后的值
///
</summary>
public
object EditingControlFormattedValue
{
set
{
Text = value.ToString();
NotifyDataGridViewOfValueChange();
}
get
{
return
this.Text;
}
}
/**////
<summary>
/// 获取控件的Text值
///
</summary>
///
<param name="context">错误上下文</param>
///
<returns></returns>
public
virtual
object GetEditingControlFormattedValue(DataGridViewDataErrorContexts context)
{
return Text;
}
/**////
<summary>
/// 编辑键盘
///
</summary>
///
<param name="keyData"></param>
///
<param name="dataGridViewWantsInputKey"></param>
///
<returns></returns>
public
bool EditingControlWantsInputKey(Keys keyData, bool dataGridViewWantsInputKey)
{
switch (keyData & Keys.KeyCode)
{
case Keys.Right:
if (!(this.SelectionLength ==
0
&&
this.SelectionStart ==
this.ToString().Length))
{
return
true;
}
break;
case Keys.Left:
if (!(this.SelectionLength ==
0
&&
this.SelectionStart ==
0))
{
return
true;
}
break;
case Keys.Home:
case Keys.End:
if (this.SelectionLength !=
this.ToString().Length)
{
return
true;
}
break;
case Keys.Prior:
case Keys.Next:
if (this.valueChanged)
{
return
true;
}
break;
case Keys.Delete:
if (this.SelectionLength >
0
||
this.SelectionStart <
this.ToString().Length)
{
return
true;
}
break;
}
return
!dataGridViewWantsInputKey;
}
public
void PrepareEditingControlForEdit(bool selectAll)
{
if (selectAll)
{
SelectAll();
}
else
{
this.SelectionStart =
this.ToString().Length;
}
}
public
virtual
bool RepositionEditingControlOnValueChange
{
get
{
return
false;
}
}
/**////
<summary>
/// 控件所在行
///
</summary>
public
int EditingControlRowIndex
{
get
{
return
this.rowIndex;
}
set
{
this.rowIndex = value;
}
}
/**////
<summary>
/// 设置样式
///
</summary>
///
<param name="dataGridViewCellStyle"></param>
public
void ApplyCellStyleToEditingControl(DataGridViewCellStyle dataGridViewCellStyle)
{
this.Font = dataGridViewCellStyle.Font;
this.ForeColor = dataGridViewCellStyle.ForeColor;
this.BackColor = dataGridViewCellStyle.BackColor;
this.TextAlign = translateAlignment(dataGridViewCellStyle.Alignment);
}
/**////
<summary>
/// 是否值发生了变化
///
</summary>
public
bool EditingControlValueChanged
{
get
{
return valueChanged;
}
set
{
this.valueChanged = value;
}
}
}
}
(二)DataGridViewFormat(可以获取格式的列，如N2 ,1234,11)
(三)DataGridViewTreeViewColumn(下拉列表树控件)
(四)DataGridViewDateTimeColumn(日期选择列控件)
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