【原创】C# Winform Dev自动下拉弹框筛选数据PopupContainerEdit组件-开发框架文库

【原创】C# Winform Dev自动下拉弹框筛选数据PopupContainerEdit组件

ucMyLookUpEdit组件介绍

ucMyLookUpEdit用户自定义组件支持输入内容自动下拉弹框，表格自动过滤数据等功能，方便用户快速筛选数据并录入系统，该组件实现比较复杂，已成功应用在一套大型系统，功能成熟稳定。

ucMyLookUpEdit组件继承PopupContainerEdit，绑定KeyDown、EditValueChanged、Validating三个重要事件。

KeyDown：用于捕获用户按键，按向下键Keys.Down弹出下拉窗体并设置光标，跳转到下拉窗体中。按回车键Keys.Enter，执行确认选择操作。

Validating：用于校验输入文本是否存在。

EditValueChanged：用户输入资料，自动过滤数据。

客户系统使用案例：

使用方法，在加载窗体时设置表格过滤控件的数据源：

C# Code:

private void Form1_Load(object sender, EventArgs e)
{
//客户资料筛选组件
txtCustomer.InitControl(new MyLookUpCustomer());
txtCustomer.IsBoundDataField = false;

//供应商资料筛选组件
txtSupplier.InitControl(new MyLookUpSupplier());
txtSupplier.IsBoundDataField = false;
}

//来源:C/S框架网 | www.csframework.com | QQ:23404761

客户资料数据源：

C# Code:

/// <summary>
/// 客户资料数据源
/// </summary>
public class MyLookUpCustomer : IMyLookUpDataSource
{
private object _LookUpData = null;

private string FILTER = "CustomerCode LIKE '%{0}%' OR CustomerName LIKE '%{1}%' OR ContactTel LIKE '%{2}%'";

public string DisplayMember { get { return "CustomerName"; } }

public string KeyMember { get { return "CustomerCode"; } }

private bool _MultiSelect = false;

public bool MultiSelect
{
get { return _MultiSelect; }
set { _MultiSelect = value; }
}

public object LookUpData
{
get
{
if (_LookUpData == null) _LookUpData = DemoData.Customers;
return _LookUpData;
}
set { _LookUpData = value; }
}

public object GetFiltedData(string searchContent)
{
if (_LookUpData != null)
{
(_LookUpData as DataTable).DefaultView.RowFilter = String.Format(FILTER, searchContent, searchContent, searchContent);
return _LookUpData;
}
else
{
return null;
}
}

/// <summary>
/// 初始化下拉表格的列对象,设置标题宽度
/// </summary>
/// <param name="popup"></param>
/// <param name="gridView"></param>
public void InitGridUI(PopupContainerControl popup, GridView gridView)
{
MyLookUpTool.SetField(gridView, "CustomerCode", "CustomerName", "ContactTel", "", "");
MyLookUpTool.SetCaption(gridView, "客户编码", "客户名称", "联系电话", "", "");
MyLookUpTool.SetWidth(gridView, 100, 250, 100, 0, 0);
MyLookUpTool.SetWidth(popup, gridView);
}
}

//来源:C/S框架网 | www.csframework.com | QQ:23404761

供应商数据源：

C# Code:

/// <summary>
/// 供应商资料数据源
/// </summary>
public class MyLookUpSupplier : IMyLookUpDataSource
{
private List<DemoData.MySupplier> _LookUpData = null;

public string DisplayMember { get { return "Name"; } }

public string KeyMember { get { return "Code"; } }

private bool _MultiSelect = false;

public bool MultiSelect
{
get { return _MultiSelect; }
set { _MultiSelect = value; }
}

public object LookUpData
{
get
{
if (_LookUpData == null) _LookUpData = DemoData.Suppliers;
return _LookUpData;
}
set { _LookUpData = value as List<DemoData.MySupplier>; }
}

public object GetFiltedData(string searchContent)
{
if (_LookUpData != null)
{
List<DemoData.MySupplier> source = _LookUpData as List<DemoData.MySupplier>;

//使用LINQ查询对象
List<DemoData.MySupplier> list = source.Where(
r => r.Code.Contains(searchContent) ||
r.Name.Contains(searchContent) ||
r.Tel.Contains(searchContent)).ToList();

return list;
}
else
{
return null;
}
}

/// <summary>
/// 初始化下拉表格的列对象,设置标题宽度
/// </summary>
/// <param name="popup"></param>
/// <param name="gridView"></param>
public void InitGridUI(PopupContainerControl popup, GridView gridView)
{
MyLookUpTool.SetField(gridView, "Code", "Name", "Tel", "", "");
MyLookUpTool.SetCaption(gridView, "编码", "名称", "电话", "", "");
MyLookUpTool.SetWidth(gridView, 100, 250, 100, 0, 0);
MyLookUpTool.SetWidth(popup, gridView);
}
}

//来源:C/S框架网 | www.csframework.com | QQ:23404761

ucMyLookUpEdit组件继承PopupContainerEdit组件

C# Code:

/// <summary>
/// C# DevExpress自动下拉弹框表格过滤数据组件
/// </summary>
public class ucMyLookUpEdit : PopupContainerEdit
{
private IMyLookUpDataSource _DataSource;

public IMyLookUpDataSource DataSource
{
get { return _DataSource; }
}

private Form _Owner = null;
private object _TmpData;

/// <summary>
/// 构造器
/// </summary>
public ucMyLookUpEdit()
{
_PopupControl = new ucMyLookUpEditPopup();
_PopupControl.OwnerEditor = this;

this.EditValueChanged += ucMyLookUpEdit_EditValueChanged;
this.Validating += new System.ComponentModel.CancelEventHandler(ucCustomerCombox_Validating);
this.Properties.TextEditStyle = TextEditStyles.Standard;
this.KeyDown += new System.Windows.Forms.KeyEventHandler(ucCustomerCombox_KeyDown);
}

//
//省略代码.....
//

}

//来源:C/S框架网 | www.csframework.com | QQ:23404761

功能测试：

VS2017解决方案：

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