selvi subramanian

NA
799
572.6k

3 dropdown values does not shown in 2 dropdown list

Apr 18 2012 7:26 AM

using System;

using System.Collections;

using System.Configuration;

using System.Data;

using System.Linq;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.HtmlControls;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Xml.Linq;

public partial class shwdetl : System.Web.UI.Page

{

Class1 cls = new Class1();

DataSet ds = new DataSet();

protected void Page_Load(object sender, EventArgs e)

{

if (!IsPostBack)

{

sel();

}

private void sel()

{

DataSet ds = new DataSet();

ds = cls.getds("select CompanyName,ClientId from Client");

ListItem li = new ListItem();

li.Value = "0";

li.Text = "-Select";

DropDownList1.Items.Add(li.ToString());

foreach (DataRow dr in ds.Tables[0].Rows)

{

ListItem li1 = new ListItem();

li1.Text = dr["ClientId"].ToString();

DropDownList1.Items.Add(li1.ToString());

}

protected void Button1_Click(object sender, EventArgs e)

{

}

protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)

{

DropDownList2.Items.Clear();

DataSet ds = new DataSet();

ds = cls.getds("select ModuleId,ModuleName from Module where ClientId='" + DropDownList1.SelectedIndex.ToString() + "'");

ListItem li3 = new ListItem();

li3.Value = "0";

DropDownList2.Items.Add(li3.ToString());

foreach (DataRow dr in ds.Tables[0].Rows)

{

ListItem li2 = new ListItem();

li2.Value = dr["ModuleId"].ToString();

li2.Text = dr["ModuleName"].ToString();

DropDownList2.Items.Add(li2.ToString());

}

protected void DropDownList2_SelectedIndexChanged(object sender, EventArgs e)

{

DropDownList3.Items.Clear();

DataSet ds = new DataSet();

ds = cls.getds("select Design,Code from Desgn where ModuleId='" + DropDownList2.SelectedIndex.ToString() + "'");

ListItem li7 = new ListItem();

li7.Text = "-select";

li7.Value = "0";

DropDownList3.Items.Add(li7.ToString());

foreach (DataRow dr in ds.Tables[0].Rows)

{

ListItem li8 = new ListItem();

li8.Value = dr["Design"].ToString();

li8.Text = dr["Code"].ToString();

DropDownList3.Items.Add(li8.ToString());

}

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<title>Untitled Page</title>

.style1

{

width: 100%;

}

.style2

{

width: 407px;

}

</style>

</head>

<body>

<div>

<tr>

<asp:Label ID="Label2" runat="server" Text="Client"></asp:Label>

</td>

<td>

<asp:DropDownList ID="DropDownList1" runat="server"

onselectedindexchanged="DropDownList1_SelectedIndexChanged">

</asp:DropDownList>

</td>

</tr>

<tr>

<asp:Label ID="Label3" runat="server" Text="Design"></asp:Label>

</td>

<td>

<asp:DropDownList ID="DropDownList2" runat="server"

onselectedindexchanged="DropDownList2_SelectedIndexChanged">

</asp:DropDownList>

</td>

</tr>

<tr>

<asp:Label ID="Label4" runat="server" Text="Task"></asp:Label>

</td>

<td>

<asp:DropDownList ID="DropDownList3" runat="server">

</asp:DropDownList>

</td>

</tr>

<tr>

<asp:Label ID="Label1" runat="server" Text="Name"></asp:Label>

</td>

<td>

<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>

</td>

</tr>

<tr>

<asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="Button" />

</td>

<td>

 </td>

</tr>

<tr>

 </td>

<td>

 </td>

</tr>

</table>

</div>

</form>

</body>

</html>

Answers (4)

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