Sample Code: How to use a RangeValidator to Select Colors from a specific range

Thursday, September 30, 2004

<asp:dropdownlist id="DropDownList1" runat="server">

<asp:ListItem Value ="#000000">#000000</asp:ListItem>

<asp:ListItem Value ="#ff0000">#ff0000</asp:ListItem>

<asp:ListItem Value ="#0000ff">#0000ff</asp:ListItem>

<asp:ListItem Value ="#00aacc">#00aacc</asp:ListItem>

<asp:ListItem Value ="#0000cc">#0000cc</asp:ListItem>

<asp:ListItem Value ="#cc0000">#cc0000</asp:ListItem>

<asp:ListItem Value ="#00ff00">#00ff00</asp:ListItem>

</asp:dropdownlist>

<asp:rangevalidator id="RangeValidator1" runat="server"

ErrorMessage="Select a color between #00ff00 to #ff0000"

ControlToValidate="DropDownList1" MaximumValue="#ff0000" MinimumValue="#00ff00">

</asp:rangevalidator>

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