加上Copy可以。测试通过using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Xml;
using System.IO;namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
} private void Form1_Load(object sender, EventArgs e)
{ DataSet ds = new DataSet(); string xml = @"<root>
<item displaymember=""a"" valuemember=""1""></item>
<item displaymember=""b"" valuemember=""2""></item>
<item displaymember=""c"" valuemember=""3""></item>
</root>"; MemoryStream stream = new MemoryStream(Encoding.Default.GetBytes(xml));
XmlTextReader myXmlReader = new XmlTextReader(stream);
ds.ReadXml(myXmlReader);
myXmlReader.Close();
comboBox1.DataSource = ds.Tables[0].Copy();
comboBox1.DisplayMember = "displaymember";
comboBox1.ValueMember = "valuemember";
comboBox1.SelectedIndex = -1;
comboBox1.DropDownStyle = ComboBoxStyle.DropDownList; comboBox2.DataSource = ds.Tables[0].Copy();
comboBox2.DisplayMember = "displaymember";
comboBox2.ValueMember = "valuemember";
comboBox2.SelectedIndex = -1;
comboBox2.DropDownStyle = ComboBoxStyle.DropDownList;
comboBox3.DataSource = ds.Tables[0].Copy();
comboBox3.DisplayMember = "displaymember";
comboBox3.ValueMember = "valuemember";
comboBox3.SelectedIndex = -1;
comboBox3.DropDownStyle = ComboBoxStyle.DropDownList;
}
}
}
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Xml;
using System.IO;namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
} private void Form1_Load(object sender, EventArgs e)
{ DataSet ds = new DataSet(); string xml = @"<root>
<item displaymember=""a"" valuemember=""1""></item>
<item displaymember=""b"" valuemember=""2""></item>
<item displaymember=""c"" valuemember=""3""></item>
</root>"; MemoryStream stream = new MemoryStream(Encoding.Default.GetBytes(xml));
XmlTextReader myXmlReader = new XmlTextReader(stream);
ds.ReadXml(myXmlReader);
myXmlReader.Close();
comboBox1.DataSource = ds.Tables[0].Copy();
comboBox1.DisplayMember = "displaymember";
comboBox1.ValueMember = "valuemember";
comboBox1.SelectedIndex = -1;
comboBox1.DropDownStyle = ComboBoxStyle.DropDownList; comboBox2.DataSource = ds.Tables[0].Copy();
comboBox2.DisplayMember = "displaymember";
comboBox2.ValueMember = "valuemember";
comboBox2.SelectedIndex = -1;
comboBox2.DropDownStyle = ComboBoxStyle.DropDownList;
comboBox3.DataSource = ds.Tables[0].Copy();
comboBox3.DisplayMember = "displaymember";
comboBox3.ValueMember = "valuemember";
comboBox3.SelectedIndex = -1;
comboBox3.DropDownStyle = ComboBoxStyle.DropDownList;
}
}
}
解决方案 »
免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货