/******************************
* 说明：自定义下拉选择框控件
* 创建人：龚宇超
* 创建日期：2017-08-07
* 修改人：
* 修改日期：
* 修改备注：
* 版本：1.0.0.0
******************************/
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using DevExpress.XtraEditors;
using DevExpress.XtraEditors.Controls;
using Lskj.Control.Model;
using Lskj.Business.Impl;
namespace Lskj.Control
{
///
/// 自定义下拉选择框
///
public partial class LabelComboxEdit : BaseUserControl
{
///
/// 数据源
///
private List _sources = new List();
///
/// 绑定ValueMember
///
public string ValueMember = string.Empty;
///
/// 隐藏值字段
///
public string ValueField = string.Empty;
///
/// 显示值字段
///
public string TextField = string.Empty;
///
/// 下拉选择框控件
///
public ComboBoxEdit TextEdit { get { return txtEdit; } }
///
/// 文本
///
/// The label.
public Label Label { get { return lblText; } }
///
/// The contro object
///
public MyControl ControlObj;
///
/// 数据源
///
public string SourceSQL = string.Empty;
///
/// 是否带参数
///
public bool Isparameters = false;
public LabelComboxEdit()
{
InitializeComponent();
// 绑定事件
txtEdit.QueryPopUp += TxtEdit_QueryPopUp;
}
private void TxtEdit_QueryPopUp(object sender, CancelEventArgs e)
{
this.RefreshData();
}
public void RefreshData()
{
if (Isparameters && !string.IsNullOrWhiteSpace(this.SourceSQL) && this.ControlObj != null)
{
string oldValue = this.EditValue;
string sqlValue = this.ControlObj.ReplaceControlValue(this.SourceSQL);
sqlValue = sqlValue.Replace("#", "");
DataTable table = BaseImpl.GetDataTableResult(sqlValue);
this.SetDataSource(table, true);
this.EditText = oldValue;
}
}
///
/// 说明：设置控件显示文本
/// 创建人：龚宇超
/// 创建日期：2017-08-07
/// 修改人：
/// 修改日期：
/// 修改备注：
/// 版本：1.0
///
/// 显示Lebel文本
public override string LabelText
{
get
{
return this.lblText.Text;
}
set
{
this.lblText.Text = value;
if (FontSize > 0)
{
this.plLeft.Dock = DockStyle.Left;
this.plLeft.AutoSize = false;
this.lblText.AutoSize = false;
this.lblText.Dock = System.Windows.Forms.DockStyle.Fill;
this.lblText.Location = new System.Drawing.Point(0, 0);
this.lblText.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
this.txtEdit.Properties.AutoHeight = false;
this.txtEdit.Properties.AppearanceDropDown.Font = this.txtEdit.Properties.Appearance.Font;//下拉框里的字体和选中框中的保持一致
this.plLeft.Width = value.Length * GetCharWidth();
GetCharWidthMultilingual(this.lblText, this.lblText.Text, this.plLeft);
}
else
{
this.plLeft.Width = this.lblText.Width + PaddingLeft;
}
}
}
///
/// 字体大小
///
/// The size of the control.
public override float FontSize
{
get
{
return base.FontSize;
}
set
{
base.FontSize = value;
if (value > 0)
{
this.lblText.Font = new Font(this.lblText.Font.FontFamily, value);
this.TextEdit.Font = new Font(this.TextEdit.Font.FontFamily, value);
}
}
}
///
/// 说明：设置控件显示值
/// 创建人：龚宇超
/// 创建日期：2017-08-07
/// 修改人：
/// 修改日期：
/// 修改备注：
/// 版本：1.0
///
public override string EditText
{
get
{
return txtEdit.Text;
}
set
{
ComboBoxModel item = ValueMember.Equals(ValueField)
? this._sources.FirstOrDefault(x => x.RowItem[x.ValueMember] + "" == value + "")
: this._sources.FirstOrDefault(x => x.RowItem[x.DisplayMember] + "" == value + "");
if (item != null)
{
txtEdit.SelectedItem = item;
}
else
{
txtEdit.EditValue = null;
}
}
}
///
/// 获取隐藏值
///
/// The edit value.
public string EditValue
{
get
{
ComboBoxModel model = this.txtEdit.SelectedItem as ComboBoxModel;
if (model != null)
{
return ValueMember.Equals(ValueField)
? model.RowItem[model.ValueMember] + ""
: model.RowItem[model.DisplayMember] + "";
}
else
{
return string.Empty;
}
}
}
///
/// 说明：设置控件提示文本
/// 创建人：龚宇超
/// 创建日期：2017-08-07
/// 修改人：
/// 修改日期：
/// 修改备注：
/// 版本：1.0
///
/// 返回控件值
public override string NullText
{
get
{
return this.txtEdit.Properties.NullText;
}
set
{
this.txtEdit.Properties.NullText = value;
}
}
///
/// 只读文本颜色
///
/// The color of the read only label.
public override bool ReadOnly
{
get
{
return base.ReadOnly;
}
set
{
base.ReadOnly = value;
this.txtEdit.Properties.ReadOnly = value;
this.lblText.ForeColor = value ? base.ReadOnlyLabelForceColor : Required ? base.RequiredLabelForceColor : base.DefaultLabelForceColor;
}
}
///
/// 必填文本颜色
///
/// The color of the required label.
public override bool Required
{
get
{
return base.Required;
}
set
{
base.Required = value;
if (value)
{
this.lblText.ForeColor = base.RequiredLabelForceColor;
}
}
}
///
/// 说明：需要单独验证是否修改
/// 创建人：龚宇超
/// 创建日期：2017-11-08
/// 修改人：
/// 修改日期：
/// 修改备注：
/// 版本：1.0
///
/// true if this instance is update; otherwise, false.
public override bool IsUpdate()
{
if (Model.FieldType == ControlType.LabComboxValue ||
Model.FieldType == ControlType.LabAutoCompleteValueParam)
{
return !this.Model.Text.Equals(this.EditValue, StringComparison.OrdinalIgnoreCase);
}
else
{
return base.IsUpdate();
}
}
///
/// 说明：设置数据源
/// 创建人：龚宇超
/// 创建日期：2017-08-08
/// 修改人：
/// 修改日期：
/// 修改备注：
/// 版本：1.0
///
/// 数据源
public void SetDataSource(DataTable dataSource)
{
SetDataSource(dataSource, false);
}
///
/// 说明：设置数据源
///
/// 数据源
/// 绑定前是否清空原数据源
public void SetDataSource(DataTable dataSource, bool clearBeforeBind)
{
try
{
if (clearBeforeBind)
{
ClearDataSource();
}
if (dataSource == null) return;
foreach (DataRow item in dataSource.Rows)
{
ComboBoxModel model = new ComboBoxModel
{
ValueMember = ValueField,
DisplayMember = TextField,
RowItem = item
};
this._sources.Add(model);
this.txtEdit.Properties.Items.Add(model);
}
}
catch (Exception)
{
}
}
///
/// 清空下拉数据源和已选项，避免带参数下拉每次弹出重复追加。
///
private void ClearDataSource()
{
this._sources.Clear();
this.txtEdit.SelectedItem = null;
this.txtEdit.EditValue = null;
this.txtEdit.Properties.Items.Clear();
}
///
/// 背景颜色
///
/// The color of the required label.
public override Color BackgroundColor
{
get
{
return TextEdit.Properties.Appearance.BackColor;
}
set
{
TextEdit.Properties.Appearance.BackColor = value;
}
}
///
/// 前景颜色
///
/// The color of the required label.
public override Color ForeColor
{
get
{
return TextEdit.Properties.Appearance.ForeColor;
}
set
{
TextEdit.Properties.Appearance.ForeColor = value;
}
}
///
/// 内容加粗
///
/// The color of the required label.
public override bool ContentBold
{
get
{
return TextEdit.Properties.Appearance.Font.Bold;
}
set
{
Font oldFont = TextEdit.Properties.Appearance.Font;
TextEdit.Properties.Appearance.Font = new Font(oldFont.FontFamily, oldFont.Size, value ? FontStyle.Bold : FontStyle.Regular);
}
}
}
class ComboBoxModel
{
public string ValueMember;
public string DisplayMember;
public DataRow RowItem;
public override string ToString()
{
return this.RowItem[DisplayMember] + "";
}
}
}