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appiah-54-
Yeni Üye
Kayıt Tarihi: 26-Nisan-2009
Ülke: Türkiye
Gönderilenler: 1
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| Gönderen: 26-Nisan-2009 Saat 19:18 | Kayıtlı IP
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bu programın ne işe yaradıgını ve dropdownlist hakkında
bilgi yazarmısınız acil lazım lütfen şimdiden
tesekkurler
2 ÖRNEKTEN BİRİN YAPARSANISIZN SEVNİRİM
ÖRNEK1
<%@ Page Language="VB" AutoEventWireup="false"
CodeFile="Default.aspx.vb" Inherits="MyPage" %>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Label ID="Label1" runat="server" Style="z-
index: 100; left: 151px; position: absolute;
top: 120px" Text="What is the
date"></asp:Label>
<asp:Label ID="result" runat="server"
Height="25px" Style="z-index: 101; left: 159px;
position: absolute; top: 242px" Text="Label"
Width="324px"></asp:Label>
<asp:DropDownList ID="DropDownList1"
runat="server" AutoPostBack="True" Height="48px"
Style="z-index: 102; left: 274px; position:
absolute; top: 118px" Width="243px">
</asp:DropDownList>
<asp:Button ID="Button1" runat="server"
Style="z-index: 104; left: 393px; position: absolute;
top: 168px" Text="OK" />
</div>
</form>
</body>
</html>
File: Default.aspx.vb
Partial Class MyPage
Inherits System.Web.UI.Page
Protected Sub Button1_Click(ByVal sender As Object,
ByVal e As System.EventArgs) Handles Button1.Click
Select Case Me.DropDownList1.SelectedIndex
Case 0
Me.result.Text = "A"
Case 1
Me.result.Text = "B"
Case 2
Me.result.Text = "C"
Case 3
Me.result.Text = "D"
Case 4
Me.result.Text = "E"
Case 5
Me.result.Text = "F"
Case 6
Me.result.Text = "G"
Case 7
Me.result.Text = "H"
Case 8
Me.result.Text = "I"
Case 9
Me.result.Text = "J"
Case 10
Me.result.Text = "K"
Case 11
Me.result.Text = "L"
End Select
End Sub
Protected Sub Page_Load(ByVal sender As Object,
ByVal e As System.EventArgs) Handles Me.Load
If Page.IsPostBack = False Then
Me.DropDownList1.Items.Add("A")
Me.DropDownList1.Items.Add("B")
Me.DropDownList1.Items.Add("C")
Me.DropDownList1.Items.Add("D")
Me.DropDownList1.Items.Add("E")
Me.DropDownList1.Items.Add("F")
Me.DropDownList1.Items.Add("G")
Me.DropDownList1.Items.Add("H")
Me.DropDownList1.Items.Add("I")
Me.DropDownList1.Items.Add("J")
Me.DropDownList1.Items.Add("K")
Me.DropDownList1.Items.Add("L")
End If
End Sub
End Class
ÖRNEK 2
<%@ Page Language="C#" %>
<script runat="server">
protected void
DropDownList1_SelectedIndexChanged(object sender,
EventArgs e)
{
string[] CarArray = new string[4] {"Ford",
"Honda", "BMW", "Dodge"};
string[] AirplaneArray = new string[3] {"Boeing
777", "Boeing 747","Boeing 737"};
string[] TrainArray = new string[3] {"Bullet
Train", "Amtrack", "Tram"};
if (DropDownList1.SelectedValue == "Car") {
DropDownList2.DataSource = CarArray; }
else if (DropDownList1.SelectedValue ==
"Airplane") {
DropDownList2.DataSource = AirplaneArray; }
else {
DropDownList2.DataSource = TrainArray;
}
DropDownList2.DataBind();
DropDownList2.Visible = true;
}
protected void Button1_Click(object sender,
EventArgs e)
{
Response.Write("You selected <b>" +
DropDownList1.SelectedValue.ToString() + ": "
+
DropDownList2.SelectedValue.ToString() +
"</b>");
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>DropDownList Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
Select transportation type:<br />
<asp:DropDownList ID="DropDownList1"
Runat="server"
OnSelectedIndexChanged="DropDownList1_SelectedIndexChang
ed"
AutoPostBack="true">
<asp:ListItem>Select an Item</asp:ListItem>
<asp:ListItem>Car</asp:ListItem>
<asp:ListItem>Airplane</asp:ListItem> ;
<asp:ListItem>Train</asp:ListItem>
</asp:DropDownList>
<asp:DropDownList ID="DropDownList2"
Runat="server" Visible="false">
</asp:DropDownList>
<asp:Button ID="Button1" Runat="server"
Text="Select Options"
OnClick="Button1_Click" />
</div>
</form>
</body>
</html>
TEKRAR TEŞEKKÜRLER
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özgenur
Yeni Üye
Kayıt Tarihi: 16-Mayıs-2012
Ülke: Turkiye
Gönderilenler: 20
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| Gönderen: 16-Mayıs-2012 Saat 16:48 | Kayıtlı IP
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<%@ Page Language="C#" AutoEventWireup="True" %>
<%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.CS.Controls" Assembly="Samples.AspNet.CS" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>Custom DropDownList - BorderColor - C# Example</title>
<script runat="server">
private void Page_Load(object sender, System.EventArgs e)
{
DropDownList1.Items.Add(new ListItem("Item1", "Item1"));
DropDownList1.Items.Add(new ListItem("Item2", "Item2"));
DropDownList1.Items.Add(new ListItem("Item2", "Item2"));
}
</script>
</head>
<body>
<form id="Form1" method="post" runat="server">
<h3>Custom DropDownList - BorderColor - C# Example</h3>
<aspSample:CustomDropDownListBorderColor
id="DropDownList1"
runat="server" />
</form>
</body>
</html>
...
using System.Web;
using System.Security.Permissions;
namespace Samples.AspNet.CS.Controls
{
[AspNetHostingPermission(SecurityAction.Demand, Level = AspNetHostingPermissionLevel.Minimal)]
public sealed class CustomDropDownListBorderColor : System.Web.UI.WebControls.DropDownList
{
[System.ComponentModel.Browsable(false)]
public override System.Drawing.Color BorderColor
{
// NOTE: The BorderColor property is inherited from the WebControl
// class and is not applicable to the DropDownList control.
get
{
return base.BorderColor;
}
set
{
base.BorderColor = value;
}
}
public override System.Web.UI.WebControls.BorderStyle BorderStyle
{
// NOTE: The BorderStyle property is inherited from the WebControl
// class and is not applicable to the DropDownList control.
get
{
return base.BorderStyle;
}
set
{
base.BorderStyle = value;
}
}
public override System.Web.UI.WebControls.Unit BorderWidth
{
// NOTE: The BorderWidth property is inherited from the WebControl
// class and is not applicable to the DropDownList control.
get
{
return base.BorderWidth;
}
set
{
base.BorderWidth = value;
}
}
public override string ToolTip
{
// NOTE: The ToolTip property is inherited from the WebControl
// class and is not applicable to the DropDownList control.
get
{
return base.ToolTip;
}
set
{
base.ToolTip = value;
}
}
}
}
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Konu: dropdownlist kodlarının açıklaması
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