Count DropDownList Items
dropdownlist is an asp.net list web server control. all list items contains in
a item collection. we can count the number of items in a dropdownlist using this collection's
count property (ListItemCollection.Count property as DropDownList.Items.Count). Count property
gets the number of list item objects in the collection.
the following asp.net c# example source code demonstrate us how can we count items in a dropdownlist server control programmatically at run time.
the following asp.net c# example source code demonstrate us how can we count items in a dropdownlist server control programmatically at run time.
DropDownListItemCount.aspx
<%@ Page Language="C#" %>
<!DOCTYPE html>
<script runat="server">
protected void Button1_Click(object sender, System.EventArgs e)
{
int totalItems = DropDownList1.Items.Count;
Label1.Text = "Total Items: " + totalItems.ToString();
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>How to get total number of list item in DropDownList, count item</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<h2 style="color:Green">DropDownList: Items Count</h2>
<asp:Label
ID="Label1"
runat="server"
Font-Bold="true"
ForeColor="HotPink"
Font-Size="Large"
>
</asp:Label>
<br /><br />
<asp:Label
ID="Label2"
runat="server"
Font-Bold="true"
ForeColor="SaddleBrown"
Text="asp.net controls"
>
</asp:Label>
<asp:DropDownList
ID="DropDownList1"
runat="server"
>
<asp:ListItem>RadioButton</asp:ListItem>
<asp:ListItem>LoginView</asp:ListItem>
<asp:ListItem>RadioButtonList</asp:ListItem>
<asp:ListItem>CreateUserWizard</asp:ListItem>
<asp:ListItem>Panel</asp:ListItem>
</asp:DropDownList>
<br /><br />
<asp:Button
ID="Button1"
runat="server"
Font-Bold="true"
ForeColor="SaddleBrown"
Text="Count Items"
OnClick="Button1_Click"
/>
</div>
</form>
</body>
</html>
