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下拉列表:DropDownList
1.绑定数据:
DropDownList1.DataSource = context.Nation;
DropDownList1.DataValueField = "Code";
DropDownList1.DataTextField = "Name";
DropDownList1.DataBind();
2.取选中项的值
DropDownList1.SelectedValue.ToString();
3.设置哪一项选中
DropDownList1.SelectedIndex = 2; //方式1
foreach (ListItem item in DropDownList1.Items)//方式二
{
if (item.Value == "n002")
{
item.Selected = true;
}
}
ListBox:列表框
1.绑定数据:
ListBox1.DataSource = context.Nation;
ListBox1.DataTextField = "Name";
ListBox1.DataValueField = "Code";
ListBox1.DataBind();
2.取选中项的值:
单选:ListBox1.SelectedValue.ToString();
多选:
foreach (ListItem item in ListBox1.Items)
{
if (item.Selected)
{
Label1.Text += item.Value;
}
}
3.设置哪项被选中
foreach (ListItem item in ListBox1.Items)
{
if (item.Text=="汉族" || item.Text=="满族")
{
item.Selected = true;
}
}
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原文地址:http://www.cnblogs.com/wang-kaifeng/p/5051976.html