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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Diagnostics;
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using System.Linq;
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using System.Text;
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using System.Windows.Forms;
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using System.Data;
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using Mesnac.Controls.Base;
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using System.Drawing;
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using System.Text.RegularExpressions;
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namespace Mesnac.Controls.Default
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{
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[ToolboxBitmap(typeof(ComboBox))]
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public partial class MCCombobox : ComboBox, IBaseControl
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{
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#region 字段定义
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private bool _mcVisible = true; //保存可见性
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private bool _mcEnabled = true; //保存可用性
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private bool _isValid = true; //保存有效性
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private bool _isEventValid = true; //保存事件有效性
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private bool _isEmpty = true; //允许
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private string _displayFiled; //显示字段
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private string _valueFiled; //值字段
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private bool isTextCorrect; //判断字符是否存在下拉列表
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private bool allowTypeAllSymbols = true;
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private Color BorderColor = Color.FromArgb(107, 191, 111);
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List<ComboboxItems> _comboboxList = new List<ComboboxItems>();
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private List<DesignAction> _selectedChanged = new List<DesignAction>();
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#endregion
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#region 构造方法
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public MCCombobox()
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{
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InitializeComponent();
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//if (this._comboboxList.Count > 0 && ((DataTable)this.BindDataSource).TableName == "")
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//{
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// this.datas
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//}
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this.MaxDropDownItems = 100;
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}
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public MCCombobox(IContainer container)
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{
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container.Add(this);
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InitializeComponent();
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}
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#endregion
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#region 属性定义
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/// <summary>
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/// 是否可以输入选项以外的字符
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/// </summary>
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[Browsable(true)]
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[Description("是否可输入额外字符"), Category("Behavior")]
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public bool AllowTypeAllSymbols
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{
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set
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{
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allowTypeAllSymbols = value;
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}
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get
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{
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return allowTypeAllSymbols;
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}
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}
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[Description("组合框选项"), Category("Data")]
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public List<ComboboxItems> ComboboxList
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{
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get { return _comboboxList; }
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set { _comboboxList = value; }
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}
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[Description("是否允许为空"), Category("Behavior")]
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public bool IsEmpty
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{
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get { return _isEmpty; }
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set { _isEmpty = value; }
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}
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[Description("文本字段"), Category("Data")]
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public string DisplayFiled
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{
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get { return _displayFiled; }
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set { _displayFiled = value; }
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}
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[Description("值字段"), Category("Data")]
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public string ValueFiled
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{
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get { return _valueFiled; }
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set { _valueFiled = value; }
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}
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#endregion
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#region 事件定义
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public List<DesignAction> SelectedChanged
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{
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get { return _selectedChanged; }
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set { _selectedChanged = value; }
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}
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#endregion
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#region 接口实现
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public string MCKey
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{
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get;
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set;
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}
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public object MCValue
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{
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get
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{
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return this.SelectedValue == null ? "" : this.SelectedValue.ToString();
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}
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set
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{
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if (value != null)
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{
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this.SelectedValue = value;
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}
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else
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{
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if (this.Items.Count > 0)
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{
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this.SelectedIndex = 0;
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}
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}
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}
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}
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public IBaseControl MCRoot
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{
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get
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{
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return null;
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}
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set
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{
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;
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}
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}
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[TypeConverter(typeof(DataSourceConverter))]
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[Description("数据连接"), Category("Data")]
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public string MCDataSourceID
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{
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get;
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set;
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}
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public MCDataSource MCDataSource
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{
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get;
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set;
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}
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[Description("是否为数据库控件"), Category("Data")]
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public bool IsDbControl
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{
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get;
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set;
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}
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[Description("初始化SQL"), Category("Data")]
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public string InitDataSource
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{
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get;
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set;
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}
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[Description("执行SQL"), Category("Data")]
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public string ActionDataSource
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{
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get;
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set;
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}
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[Description("绑定数据源"), Category("Data")]
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public object BindDataSource
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{
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get { return this.DataSource; }
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set
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{
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if (value is List<ComboboxItems> || (value is DataTable && this.DisplayFiled == null && this.ValueFiled == null))
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{
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this.DisplayMember = "CmbDisplay";
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this.ValueMember = "CmbValue";
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this.DataSource = this.ComboboxList;
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}
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else
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{
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this.DataSource = null;
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this.DisplayMember = this.DisplayFiled;
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this.ValueMember = this.ValueFiled;
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this.DataSource = value == null ? new DataTable() : (DataTable)value;
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this.AutoCompleteSource = AutoCompleteSource.ListItems;
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this.AutoCompleteMode = AutoCompleteMode.SuggestAppend;
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}
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}
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}
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[Description("操作类型"), Category("Data")]
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public DbOptionTypes DbOptionType
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{
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get;
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set;
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}
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[Description("是否可见"), Category("Behavior")]
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public bool MCVisible
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{
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get
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{
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return this._mcVisible;
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}
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set
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{
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this._mcVisible = value == null ? true : value;
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if (this.Site.DesignMode)
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{
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this.Visible = true;
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}
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else
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{
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this.Visible = _mcVisible;
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}
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}
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}
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[Description("是否可用"), Category("Behavior")]
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public bool MCEnabled
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{
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get
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{
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return this._mcEnabled;
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}
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set
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{
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this._mcEnabled = value == null ? true : value;
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if (this.Site.DesignMode)
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{
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this.Enabled = true;
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}
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else
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{
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this.Enabled = this._mcEnabled;
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}
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}
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}
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public bool IsValid
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{
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get { return _isValid; }
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set { _isValid = value; }
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}
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public bool IsEventValid
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{
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get { return this._isEventValid; }
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set { this._isEventValid = value; }
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}
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#endregion
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#region 事件处理
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protected override void OnLostFocus(EventArgs e)
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{
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if (!_isEmpty)
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{
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if (this.Text == string.Empty && this.DropDownStyle.ToString() != "DropDownList")
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{
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this.BorderColor = Color.Red;
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errorProvider1.SetIconAlignment((Control)this, ErrorIconAlignment.MiddleRight);
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errorProvider1.SetError((Control)this, "不允许为空！");
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_isValid = false;
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return;
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}
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else
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{
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errorProvider1.SetIconAlignment((Control)this, ErrorIconAlignment.MiddleRight);
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errorProvider1.SetError((Control)this, "");
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_isValid = true;
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}
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}
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base.Invalidate();
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base.OnLostFocus(e);
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}
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#region 自动完成
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protected override void OnKeyPress(KeyPressEventArgs e)
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{
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if (!allowTypeAllSymbols)
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{
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isTextCorrect = false;
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if (!char.IsControl(e.KeyChar))
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{
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string actual = this.Text.Substring(0, SelectionStart) + e.KeyChar;
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// 从第一个字符串开始匹配
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int index = this.FindString(actual);
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// 如果找到匹配字符串，设置为true
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if (index > -1)
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{
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isTextCorrect = true;
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base.OnKeyPress(e);
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}
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else
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e.Handled = true;
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}
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}
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}
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protected override void OnKeyUp(KeyEventArgs e)
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{
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//int index;
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//string actual;
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//string found;
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//// 这些键不坐任何事情
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//if ((e.KeyCode == Keys.Back) ||
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// (e.KeyCode == Keys.Left) ||
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// (e.KeyCode == Keys.Right) ||
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// (e.KeyCode == Keys.Up) ||
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// (e.KeyCode == Keys.Down) ||
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// (e.KeyCode == Keys.Delete) ||
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// (e.KeyCode == Keys.PageUp) ||
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// (e.KeyCode == Keys.PageDown) ||
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// (e.KeyCode == Keys.Home) ||
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// (e.KeyCode == Keys.End) ||
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// (e.KeyCode == Keys.ShiftKey) ||
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// (e.KeyCode == Keys.Tab) ||
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// (e.KeyCode == Keys.Menu))
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//{
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// return;
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//}
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//// 已输入的文本
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//actual = this.Text.Substring(0, this.SelectionStart);
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//// 从第一列开始找
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//index = this.FindString(actual);
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////找到
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//if (index > -1)
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//{
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// if ((!allowTypeAllSymbols && isTextCorrect) || (allowTypeAllSymbols))
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// {
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// if (this.DataSource != null && this.DisplayMember != "")
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// found = ((DataRowView)(this.Items[index]))[this.DisplayMember].ToString();
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// else
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// found = this.Items[index].ToString();
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// this.SelectedIndex = index;
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// this.Text = found;
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// //选中剩余的字符
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// this.SelectionStart = actual.Length;
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// this.SelectionLength = found.Length;
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// base.OnKeyUp(e);
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// }
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//}
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}
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#endregion
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#endregion
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}
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[Serializable]
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public class ComboboxItems
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{
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private string cmbValue;
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public string CmbValue
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{
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get { return cmbValue; }
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set { cmbValue = value; }
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}
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private string cmbDisplay;
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public string CmbDisplay
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{
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get { return cmbDisplay; }
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set { cmbDisplay = value; }
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}
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}
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} |