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400 lines
11 KiB
C#

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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Diagnostics;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Data;
using Mesnac.Controls.Base;
using System.Drawing;
using System.Text.RegularExpressions;
namespace Mesnac.Controls.Default
{
[ToolboxBitmap(typeof(ComboBox))]
public partial class MCCombobox : ComboBox, IBaseControl
{
#region 字段定义
private bool _mcVisible = true; //保存可见性
private bool _mcEnabled = true; //保存可用性
private bool _isValid = true; //保存有效性
private bool _isEventValid = true; //保存事件有效性
private bool _isEmpty = true; //允许
private string _displayFiled; //显示字段
private string _valueFiled; //值字段
private bool isTextCorrect; //判断字符是否存在下拉列表
private bool allowTypeAllSymbols = true;
private Color BorderColor = Color.FromArgb(107, 191, 111);
List<ComboboxItems> _comboboxList = new List<ComboboxItems>();
private List<DesignAction> _selectedChanged = new List<DesignAction>();
#endregion
#region 构造方法
public MCCombobox()
{
InitializeComponent();
//if (this._comboboxList.Count > 0 && ((DataTable)this.BindDataSource).TableName == "")
//{
// this.datas
//}
}
public MCCombobox(IContainer container)
{
container.Add(this);
InitializeComponent();
}
#endregion
#region 属性定义
/// <summary>
/// 是否可以输入选项以外的字符
/// </summary>
[Browsable(true)]
[Description("是否可输入额外字符"), Category("Behavior")]
public bool AllowTypeAllSymbols
{
set
{
allowTypeAllSymbols = value;
}
get
{
return allowTypeAllSymbols;
}
}
[Description("组合框选项"), Category("Data")]
public List<ComboboxItems> ComboboxList
{
get { return _comboboxList; }
set { _comboboxList = value; }
}
[Description("是否允许为空"), Category("Behavior")]
public bool IsEmpty
{
get { return _isEmpty; }
set { _isEmpty = value; }
}
[Description("文本字段"), Category("Data")]
public string DisplayFiled
{
get { return _displayFiled; }
set { _displayFiled = value; }
}
[Description("值字段"), Category("Data")]
public string ValueFiled
{
get { return _valueFiled; }
set { _valueFiled = value; }
}
#endregion
#region 事件定义
public List<DesignAction> SelectedChanged
{
get { return _selectedChanged; }
set { _selectedChanged = value; }
}
#endregion
#region 接口实现
public string MCKey
{
get;
set;
}
public object MCValue
{
get
{
return this.SelectedValue == null ? "" : this.SelectedValue.ToString();
}
set
{
if (value != null)
{
this.SelectedValue = value;
}
else
{
if (this.Items.Count > 0)
{
this.SelectedIndex = 0;
}
}
}
}
public IBaseControl MCRoot
{
get
{
return null;
}
set
{
;
}
}
[TypeConverter(typeof(DataSourceConverter))]
[Description("数据连接"), Category("Data")]
public string MCDataSourceID
{
get;
set;
}
public MCDataSource MCDataSource
{
get;
set;
}
[Description("是否为数据库控件"), Category("Data")]
public bool IsDbControl
{
get;
set;
}
[Description("初始化SQL"), Category("Data")]
public string InitDataSource
{
get;
set;
}
[Description("执行SQL"), Category("Data")]
public string ActionDataSource
{
get;
set;
}
[Description("绑定数据源"), Category("Data")]
public object BindDataSource
{
get { return this.DataSource; }
set
{
if (value is List<ComboboxItems> || (value is DataTable && this.DisplayFiled == null && this.ValueFiled == null))
{
this.DisplayMember = "CmbDisplay";
this.ValueMember = "CmbValue";
this.DataSource = this.ComboboxList;
}
else
{
this.DataSource = null;
this.DisplayMember = this.DisplayFiled;
this.ValueMember = this.ValueFiled;
this.DataSource = value == null ? new DataTable() : (DataTable)value;
this.AutoCompleteSource = AutoCompleteSource.ListItems;
this.AutoCompleteMode = AutoCompleteMode.SuggestAppend;
}
}
}
[Description("操作类型"), Category("Data")]
public DbOptionTypes DbOptionType
{
get;
set;
}
[Description("是否可见"), Category("Behavior")]
public bool MCVisible
{
get
{
return this._mcVisible;
}
set
{
this._mcVisible = value == null ? true : value;
if (this.Site.DesignMode)
{
this.Visible = true;
}
else
{
this.Visible = _mcVisible;
}
}
}
[Description("是否可用"), Category("Behavior")]
public bool MCEnabled
{
get
{
return this._mcEnabled;
}
set
{
this._mcEnabled = value == null ? true : value;
if (this.Site.DesignMode)
{
this.Enabled = true;
}
else
{
this.Enabled = this._mcEnabled;
}
}
}
public bool IsValid
{
get { return _isValid; }
set { _isValid = value; }
}
public bool IsEventValid
{
get { return this._isEventValid; }
set { this._isEventValid = value; }
}
#endregion
#region 事件处理
protected override void OnLostFocus(EventArgs e)
{
if (!_isEmpty)
{
if (this.Text == string.Empty && this.DropDownStyle.ToString() != "DropDownList")
{
this.BorderColor = Color.Red;
errorProvider1.SetIconAlignment((Control)this, ErrorIconAlignment.MiddleRight);
errorProvider1.SetError((Control)this, "不允许为空!");
_isValid = false;
return;
}
else
{
errorProvider1.SetIconAlignment((Control)this, ErrorIconAlignment.MiddleRight);
errorProvider1.SetError((Control)this, "");
_isValid = true;
}
}
base.Invalidate();
base.OnLostFocus(e);
}
#region 自动完成
protected override void OnKeyPress(KeyPressEventArgs e)
{
if (!allowTypeAllSymbols)
{
isTextCorrect = false;
if (!char.IsControl(e.KeyChar))
{
string actual = this.Text.Substring(0, SelectionStart) + e.KeyChar;
// 从第一个字符串开始匹配
int index = this.FindString(actual);
// 如果找到匹配字符串设置为true
if (index > -1)
{
isTextCorrect = true;
base.OnKeyPress(e);
}
else
e.Handled = true;
}
}
}
protected override void OnKeyUp(KeyEventArgs e)
{
//int index;
//string actual;
//string found;
//// 这些键不坐任何事情
//if ((e.KeyCode == Keys.Back) ||
// (e.KeyCode == Keys.Left) ||
// (e.KeyCode == Keys.Right) ||
// (e.KeyCode == Keys.Up) ||
// (e.KeyCode == Keys.Down) ||
// (e.KeyCode == Keys.Delete) ||
// (e.KeyCode == Keys.PageUp) ||
// (e.KeyCode == Keys.PageDown) ||
// (e.KeyCode == Keys.Home) ||
// (e.KeyCode == Keys.End) ||
// (e.KeyCode == Keys.ShiftKey) ||
// (e.KeyCode == Keys.Tab) ||
// (e.KeyCode == Keys.Menu))
//{
// return;
//}
//// 已输入的文本
//actual = this.Text.Substring(0, this.SelectionStart);
//// 从第一列开始找
//index = this.FindString(actual);
////找到
//if (index > -1)
//{
// if ((!allowTypeAllSymbols && isTextCorrect) || (allowTypeAllSymbols))
// {
// if (this.DataSource != null && this.DisplayMember != "")
// found = ((DataRowView)(this.Items[index]))[this.DisplayMember].ToString();
// else
// found = this.Items[index].ToString();
// this.SelectedIndex = index;
// this.Text = found;
// //选中剩余的字符
// this.SelectionStart = actual.Length;
// this.SelectionLength = found.Length;
// base.OnKeyUp(e);
// }
//}
}
#endregion
#endregion
}
[Serializable]
public class ComboboxItems
{
private string cmbValue;
public string CmbValue
{
get { return cmbValue; }
set { cmbValue = value; }
}
private string cmbDisplay;
public string CmbDisplay
{
get { return cmbDisplay; }
set { cmbDisplay = value; }
}
}
}