可输入的模糊搜索ComBox控件

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;

namespace CommonControl

{

public partial class SC_ComBox : UserControl

{

public SC_ComBox()

{

InitializeComponent();

}

#region Properties

private DataTable dt;

public DataTable DT

{

get { return dt;}

set { dt = value; }

}

private string displayMember;

public string DisplayMember

{

get { return displayMember; }

set { displayMember = value; }

}

private string valueMember;

public string ValueMember

{

get { return valueMember; }

set { valueMember = value; }

}

#endregion

private void SC_ComBox_TextUpdate(object sender, EventArgs e)

{

CBload();

}

public void CBload()

{

string defaulttxt = this.comboBox1.Text;

DataView dv = dt.DefaultView;

if (!string.IsNullOrEmpty(this.comboBox1.Text))

dv.RowFilter = DisplayMember + " like ‘%" + this.comboBox1.Text + "%‘";

DataTable dtnew = dv.ToTable();

this.comboBox1.DataSource = dtnew;

this.comboBox1.DisplayMember = displayMember;

this.comboBox1.ValueMember = valueMember;

this.comboBox1.Text = defaulttxt;

this.comboBox1.DroppedDown = true;

this.comboBox1.SelectionStart = defaulttxt.Length;//光标位置在右边

}

private void comboBox1_MouseClick(object sender, MouseEventArgs e)

{

CBload();

}

}

}