怎么获取绑定数据的combobox的选中值及选中text

1、绑定combobox的代码如下：
DataTable LDT_CodeType = Models.MoCodefile.GetCodeType();
if (LDT_CodeType != null)
{
cboxCtype.DataSource = LDT_CodeType;
cboxCtype.DisplayMember = codetypename;
cboxCtype.ValueMember = codetypeno;
}
获取选中值：cboxCtype.SelectedIndex.ToString() 或是 cboxCtype.SelectedValue.ToString()
获取选中text：
方法一：DataRowView dr = (DataRowView)cboxCtype.Items[cboxCtype.SelectedIndex];
方法二：cboxCtype.GetItemText(cboxCtype.Items[cboxCtype.SelectedIndex])

        private void Form1_Load(object sender, EventArgs e){ArrayList lst = new ArrayList();   　　　　//列表lst.Add(new Vendor("a_geshi03", "20"));  //在列表中增加对象lst.Add(new Vendor("a_geshi04", "30"));comboBox1.Items.Clear();                 //清空comboboxcomboBox1.DataSource = lst;           //将lst列表绑定到combobxcomboBox1.DisplayMember = "Strtemname";// 指定显示的数据项comboBox1.ValueMember = "Strindex";  //指定comboBox1.SelectedValue返回的数据项}

其中的Vendor可以是自定义的类，如：

class Vendor{private string strtemname;private string strindex;public Vendor(string itemname,string index){this.strtemname = itemname;this.strindex = index;}public string Strtemname{get { return strtemname; }set { strtemname = value; }}public string Strindex{get { return strindex; }set { strindex = value; }}}

二、数据绑定方法

1、绑定List集合：

List<string>list = new List<string>(){"test1","test2","test3"};this.comboBox1.DataSource = list;

2、绑定数组集合

string[] array = new string[] { "test1","test2","test3" };this.comboBox1.DataSource = array;

3、绑定数组集合：

//创建一个实体类，用于存储数据
public class Data
{public string ID { get; set; }public string ShowValue { get; set; }
}List<Data> datas = new List<Data>();
private void ArrayDataBinding()
{Data data1 = new Data() { ID = "1", ShowValue = "test1" };Data data2 = new Data() { ID = "2", ShowValue = "test2" };Data data3 = new Data() { ID = "3", ShowValue = "test3" };datas.Add(data1);datas.Add(data2);datas.Add(data3);this.comboBox1.DataSource = datas;this.comboBox1.DisplayMember = "ShowValue";this.comboBox1.ValueMember = "ID";
}//利用控件的SelectedIndexChanged事件选中的DisplayMember来查找对应的ValueMember。
private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{this.textBox1.Text = comboBox1.SelectedValue.ToString();
}

4、绑定DataTable

private void DataTableDataBinding()
{DataTable dt = new DataTable();DataColumn dc1 = new DataColumn("ID");DataColumn dc2 = new DataColumn("ShowValue");dt.Columns.Add(dc1);dt.Columns.Add(dc2);DataRow dr1 = dt.NewRow();dr1["ID"] = "1";dr1["ShowValue"] = "test1";DataRow dr2 = dt.NewRow();dr2["ID"] = "2";dr2["ShowValue"] = "test2";DataRow dr3 = dt.NewRow();dr3["ID"] = "3";dr3["ShowValue"] = "test3";dt.Rows.Add(dr1);dt.Rows.Add(dr2);dt.Rows.Add(dr3);this.comboBox1.DataSource = dt;this.comboBox1.ValueMember = "ID";this.comboBox1.DisplayMember = "ShowValue";
}//利用控件的SelectedIndexChanged事件选中的DisplayMember来查找对应的ValueMember。
private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{this.textBox1.Text = comboBox1.SelectedValue.ToString();
}

数据绑定：

this.comboBox1.DataSource = dt;
this.comboBox1.DisplayMember = "dtColName";
this.comboBox1.ValueMember = "ID";
/*DisplayMember绑定的是需显示的字段,ValueMember绑定的是对应的值
一般DisplayMember是显示给客户看的, 而ValueMember 是绑定处理程序标识 给程序员看的*/

5、绑定枚举

//定义一个颜色枚举
public enum ColorEnum
{red,blue,skyblue
}//使用Enum.GetNames（）方法，将枚举元素的名称赋值给控件。
private void EnumDataBinding()
{this.comboBox1.DataSource = Enum.GetNames(typeof(ColorEnum));
}