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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)

控件源码下载
/Files/CodeAnyWhere/WindowsApplication23.rar
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