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In a page there is dropdown list with the name of the
cities like Bangalore,Pune,Chennai,Other and a text box
that would enable the user to enter the name of the city if
other is selected. How to enable validation on the text box
if other is selected
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Answer Posted / sai krishna
In aspx page
<asp:DropDownList ID="DropDownList1" runat="server"
Width="176px">
<asp:ListItem>Pune</asp:ListItem>
<asp:ListItem>Chennai</asp:ListItem>
<asp:ListItem>Hyderabad</asp:ListItem>
<asp:ListItem>Other</asp:ListItem>
</asp:DropDownList>
<asp:TextBox ID="TextBox2"
runat="server"></asp:TextBox>
<script language="javascript" type="text/javascript">
var other1 = window.document.getElementById("TextBox2");
other1.disabled = true;
function ValidateOtherCity()
{
var other = window.document.getElementById
("DropDownList1");
var other2 = window.document.getElementById
("TextBox2");
if(other.value == 'Other')
{
other2.disabled = false;
}
else
{
other2.disabled = true;
}
}
</script>
In aspx.cs
protected void Page_Load(object sender, EventArgs e)
{
DropDownList1.Attributes.Add
("OnChange", "javascript:ValidateOtherCity();");
}
| Is This Answer Correct ? | 2 Yes | 0 No |
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