RadioButtonList 单选按钮列表
属性:RepeatColumns 用于布局项的列数(每一行的个数)
RepeatDirection 选择Vertical,纵向排列;选择Horizontal,横向排列。
RepeatLayout 选择Table,RadioButtonList用<table>布局;
选择Flow,RadioButtonList用<span>布局;
选择OrderedList时RepeatDirection 属性必须选择Vertical,RadioButtonList用<ol>有序排列布局;
选择UnorderedList时RepeatDirection 属性必须选择Vertical,RadioButtonList用<ul>无序排列布局;
1 protected void Page_Load(object sender, EventArgs e) 2 { 3 if (!IsPostBack) 4 { 5 Listclist = new List (); 6 Class1 C1 = new Class1() { Code = "001", Name = "张店" }; 7 Class1 C2 = new Class1() { Code = "002", Name = "淄川" }; 8 Class1 C3 = new Class1() { Code = "003", Name = "博山" }; 9 Class1 C4 = new Class1() { Code = "004", Name = "临淄" };10 Class1 C5 = new Class1() { Code = "005", Name = "周村" };11 Class1 C6 = new Class1() { Code = "006", Name = "桓台" };12 Class1 C7 = new Class1() { Code = "007", Name = "高青" };13 Class1 C8 = new Class1() { Code = "008", Name = "沂源" };14 clist.Add(C1);15 clist.Add(C2);16 clist.Add(C3);17 clist.Add(C4);18 clist.Add(C5);19 clist.Add(C6);20 clist.Add(C7);21 clist.Add(C8);22 //绑定数据23 RadioButtonList1.DataSource = clist;24 RadioButtonList1.DataTextField = "Name";25 RadioButtonList1.DataValueField = "Code";26 RadioButtonList1.DataBind();//将绑定的数据调用到控件*很重要*27 28 //设置默认选中项29 RadioButtonList1.SelectedIndex = 0;//默认第一个30 // RadioButtonList1.SelectedIndex = clist.Count - 1;//默认最后一个31 //RadioButtonList1.SelectedValue = "002";//默认选中项的Code为00232 33 //根据Name选择默认选中项34 //foreach(ListItem li in RadioButtonList1.Items)35 //{36 // if(li.Text=="桓台")37 // {38 // li.Selected = true;39 // }40 //}41 }42 Button1.Click += Button1_Click;43 }44 45 void Button1_Click(object sender, EventArgs e)46 {47 Label1.Text = RadioButtonList1.SelectedValue;//取出Value值48 Label1.Text = RadioButtonList1.SelectedItem.Text;//取出Text值49 }
1、绑定数据:
1 RadioButtonList1.DataSource = clist;2 RadioButtonList1.DataTextField = "Name";//显3 RadioButtonList1.DataValueField = "Code";//隐4 RadioButtonList1.DataBind();//将绑定的数据调用到控件*很重要*
2、设置选中项:
1 //根据索引设置 2 RadioButtonList1.SelectedIndex = 0;//默认第一个 3 RadioButtonList1.SelectedIndex = clist.Count - 1;//默认最后一个 4 //根据Value值设置 5 RadioButtonList1.SelectedValue = "002";//默认选中项的Code为002 6 7 //根据Text值设置 8 foreach (ListItem li in RadioButtonList1.Items) 9 {10 if (li.Text == "桓台")11 {12 li.Selected = true;13 }14 }
3、取出数据:
1 Label1.Text = RadioButtonList1.SelectedValue;//取出Value值2 Label1.Text = RadioButtonList1.SelectedItem.Text;//取出Text值 3 Label1.Text = RadioButtonList1.SelectedItem.Selected.ToString();//获取一个值判定是否被选中
CheckBoxList:复选框列表
属性:RepeatColumn、RepeatDirection 和RepeatLayout 同RadioButtonList的使用方式相同;
1、绑定数据:
1 CheckBoxList1.DataSource = clist;2 CheckBoxList1.DataTextField = "Name";//显3 CheckBoxList1.DataValueField = "Code";//隐4 CheckBoxList1.DataBind();//将绑定的数据调用到控件*很重要*
2、设置选中项:
foreach (ListItem li in CheckBoxList1.Items) { if (li.Text == "桓台") { li.Selected = true; } if (li.Text == "张店") { li.Selected = true; } }
3、取出数据:
//取一个数据:
Label1.Text = CheckBoxList1.SelectedItem.Text; //取一堆数据: foreach (ListItem li in CheckBoxList1.Items) { if (li.Selected == true) { Label1.Text += li.Text+","; } }
DropDownList:下拉列表
1、绑定数据
1 DropDownList1.DataSource = clist;2 DropDownList1.DataTextField = "Name";3 DropDownList1.DataValueField = "Code";4 DropDownList1.DataBind();
2、设置选中项
1 //根据索引设置 2 DropDownList1.SelectedIndex = 0; 3 DropDownList1.SelectedIndex = clist.Count - 1;//默认最后一个 4 //根据Value值设置 5 DropDownList1.SelectedValue = "002";//默认选中项的Code为002 6 7 //根据Text值设置 8 foreach (ListItem li in DropDownList1.Items) 9 {10 if (li.Text == "桓台")11 {12 li.Selected = true;13 }14 }
3、取出数据
1 Label1.Text = DropDownList1.SelectedValue;//取出Value值2 Label1.Text = DropDownList1.SelectedItem.Text;//取出Text值3 Label1.Text = DropDownList1.SelectedItem.Selected.ToString();//获取一个值判定是否被选中
ListBox 复选列表
属性: SelectionMode 列表选择模式: Single 单选;Multiple多选
绑定数据,设置选中项,取出数据方法同CheckBoxList相同。