DropDownListExample.aspx
DropDownListExample.aspx.cs
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="DropDownListExample.aspx.cs" Inherits="WebDemo01.DropDownListExample" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<h3>Inventory
Details</h3>
<table style="width:auto;">
<tr>
<td>Product Name</td>
<td>
<asp:TextBox ID="txtName" runat="server" Width="170px"></asp:TextBox>
</td>
<td> </td>
</tr>
<tr>
<td>Select Product Category</td>
<td>
<asp:DropDownList ID="ddlProductCategory" runat="server" Width="180px">
</asp:DropDownList>
</td>
<td> </td>
</tr>
<tr>
<td> </td>
<td style="text-align:center">
<asp:LinkButton ID="lnkbtnShowMeasure" runat="server" OnClick="lnkbtnShowMeasure_Click">
Show Measures</asp:LinkButton>
</td>
<td> </td>
</tr>
<tr>
<td>Select Measure</td>
<td>
<asp:DropDownList ID="ddlMeasure"
runat="server" Width="180px">
</asp:DropDownList>
</td>
<td> </td>
</tr>
<tr>
<td>Enter Quantity</td>
<td>
<asp:TextBox ID="txtQuanityt"
runat="server" Width="170px"></asp:TextBox>
</td>
<td> </td>
</tr>
<tr>
<td>
<asp:Label ID="Label1" runat="server"
Text="Enter
Price"></asp:Label>
</td>
<td>
<asp:TextBox ID="TextBox1" runat="server" Width="170px"></asp:TextBox>
</td>
<td> </td>
</tr>
<tr>
<td> </td>
<td>
<asp:Button ID="btnSubmit" runat="server" Text="Submit" Width="180px" />
</td>
<td> </td>
</tr>
<tr>
<td colspan="3">
<asp:Label ID="lblMsg" runat="server"
Text="Save
Status...."></asp:Label>
</td>
</tr>
</table>
</div>
</form>
</body>
</html>
using System;
namespace WebDemo01
{
public partial class DropDownListExample : System.Web.UI.Page
{
protected void
Page_Load(object sender, EventArgs e)
{
if (!IsPostBack) //Getting loaded very first
time
{
ddlProductCategory.Items.Add("Solid Items");
ddlProductCategory.Items.Add("Liquid Items");
}
}
protected void
lnkbtnShowMeasure_Click(object sender, EventArgs e)
{
ddlMeasure.Items.Clear();
if (ddlProductCategory.SelectedItem.Text.Equals
("Solid Items"))
{
ddlMeasure.Items.Add("100Gms");
ddlMeasure.Items.Add("200Gms");
ddlMeasure.Items.Add("500Gms");
ddlMeasure.Items.Add("01 #Kg");
ddlMeasure.Items.Add("02 Kgs");
ddlMeasure.Items.Add("05 Kgs");
ddlMeasure.Items.Add("10 Kgs");
}
else if
(ddlProductCategory.SelectedItem.Text.Equals
("Liquid
Items"))
{
ddlMeasure.Items.Add("100ml");
ddlMeasure.Items.Add("250ml");
ddlMeasure.Items.Add("250ml");
ddlMeasure.Items.Add("1 Ltr");
ddlMeasure.Items.Add("2 Ltr");
ddlMeasure.Items.Add("5 Ltr");
}
}
}
}
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