Set asp:DropDownList selected index (VB.net)
<%@ Page Language="vb" %>
<html>
<head>
<title>Selection Control Example</title>
<script runat="server">
Sub Page_Load()
MyCheckBox1.Checked = True
MyRadioButton1.Checked = False
MyListBox.SelectionMode = ListSelectionMode.Multiple
MyDropDownList.SelectedIndex = 1
MyCheckBoxList.RepeatDirection = RepeatDirection.Horizontal
MyRadioButtonList.RepeatLayout = RepeatLayout.Table
End Sub
</script>
</head>
<body>
<h1>Selection Control Example</h1>
<form runat="server">
<asp:table id="MyTable" border="1" cellpadding="5" cellspacing="0" runat="server">
<asp:tablerow runat="server">
<asp:tablecell runat="server">
CheckBox Control:
</asp:tablecell>
<asp:tablecell runat="server">
<asp:checkbox id="MyCheckBox1"
text="Vanilla" runat="server" />
<asp:checkbox id="MyCheckBox2"
text="Chocolate" runat="server" />
</asp:tablecell>
</asp:tablerow>
<asp:tablerow runat="server">
<asp:tablecell runat="server">
RadioButton Control:
</asp:tablecell>
<asp:tablecell runat="server">
<asp:radiobutton id="MyRadioButton1" groupname="Group1"
checked=True text="Yes" runat="Server"/>
<asp:radiobutton id="MyRadioButton2" groupname="Group1"
text="No" runat="Server"/>
</asp:tablecell>
</asp:tablerow>
<asp:tablerow runat="server">
<asp:tablecell runat="server">
ListBox Control:
</asp:tablecell>
<asp:tablecell runat="server">
<asp:listbox id="MyListBox" runat="server">
<asp:listitem value="Vanilla" selected="true">Vanilla</asp:listitem>
<asp:listitem value="Chocolate">Chocolate</asp:listitem>
<asp:listitem value="Strawberry">Strawberry</asp:listitem>
</asp:listbox>
</asp:tablecell>
</asp:tablerow>
<asp:tablerow runat="server">
<asp:tablecell runat="server">
DropDownList Control:
</asp:tablecell>
<asp:tablecell runat="server">
<asp:dropdownlist id="MyDropDownList" runat="server">
<asp:listitem value="Single" selected="true">Single</asp:listitem>
<asp:listitem value="Multiline">Multiline</asp:listitem>
<asp:listitem value="Password">Password</asp:listitem>
</asp:dropdownlist>
</asp:tablecell>
</asp:tablerow>
<asp:tablerow runat="server">
<asp:tablecell runat="server">
CheckBoxList Control:
</asp:tablecell>
<asp:tablecell runat="server">
<asp:checkboxlist id="MyCheckBoxList"
repeatdirection="vertical" runat="server">
<asp:listitem value="Vanilla" text="Vanilla"/>
<asp:listitem value="Chocolate" text="Chocolate"/>
<asp:listitem value="Strawberry" text="Strawberry"/>
</asp:checkboxlist>
</asp:tablecell>
</asp:tablerow>
<asp:tablerow runat="server">
<asp:tablecell runat="server">
RadioButtonList Control:
</asp:tablecell>
<asp:tablecell runat="server">
<asp:radiobuttonlist id="MyRadioButtonList" repeatdirection="Horizontal" runat="server">
<asp:listitem value="Female" text="Female" selected="true"/>
<asp:listitem value="Male" text="Male"/>
</asp:radiobuttonlist>
</asp:tablecell>
</asp:tablerow>
</asp:table>
</form>
</body>
</html>
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