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ASP.NET Tutorial/ASP.net Controls/Button - История изменений
2026-04-30T02:47:04Z
История изменений этой страницы в вики
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http://nfex.ru/index.php?title=ASP.NET_Tutorial/ASP.net_Controls/Button&diff=3348&oldid=prev
в 15:30, 26 мая 2010
2010-05-26T15:30:57Z
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<td colspan="1" style="background-color: white; color:black; text-align: center;">← Предыдущая</td>
<td colspan="1" style="background-color: white; color:black; text-align: center;">Версия 15:30, 26 мая 2010</td>
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http://nfex.ru/index.php?title=ASP.NET_Tutorial/ASP.net_Controls/Button&diff=3349&oldid=prev
Admin: 1 версия
2010-05-26T12:00:31Z
<p>1 версия</p>
<p><b>Новая страница</b></p><div>== A button control with onmouseover and onmouseout setting==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
<%@ Page Language="C#" %><br />
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"<br />
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><br />
<html xmlns="http://www.w3.org/1999/xhtml" ><br />
<head id="Head1" runat="server"><br />
<title>Button Expando</title><br />
</head><br />
<body><br />
<form id="form1" runat="server"><br />
<div><br />
<asp:Button<br />
id="btnSubmit"<br />
Text="Submit"<br />
onmouseover="this.value="Click Here!""<br />
onmouseout="this.value="Submit""<br />
Runat="server" /><br />
</div><br />
</form><br />
</body><br />
</html></source><br />
<br />
<br />
<br />
== Add event handler to a button in page load event==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
<%@ page language="C#" %><br />
<script runat="server"><br />
void Page_Load (object sender, System.EventArgs e) { <br />
<br />
this.Button1.Click += delegate(object dlgSender, EventArgs dlgE) {<br />
Label1.Text = "Yeah, you clicked the button!";<br />
}; <br />
}<br />
</script><br />
<html><br />
<head runat="server"><br />
<title>Untitled Page</title><br />
</head><br />
<body><br />
<form runat="server"><br />
<asp:button id="Button1" runat="server" text="Button" /><br />
<br /><br />
<br /><br />
<asp:label id="Label1" runat="server">click button!</asp:label><br />
</form><br />
</body><br />
</html></source><br />
<br />
<br />
<br />
== Annonymous delegate as the event handler==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
<%@ page language="C#" %><br />
<script runat="server"><br />
void Page_Load (object sender, System.EventArgs e) { <br />
string text = "Yeah, you clicked the button!";<br />
<br />
this.Button1.Click += delegate(object dlgSender, EventArgs dlgE) { <br />
Label1.Text = text;<br />
}; <br />
}<br />
</script><br />
<html><br />
<head runat="server"><br />
<title>Untitled Page</title><br />
</head><br />
<body><br />
<form runat="server"><br />
<asp:button id="Button1" runat="server" text="Button" /><br />
<br /><br />
<br /><br />
<asp:label id="Label1" runat="server">Please click da button!</asp:label><br />
</form><br />
</body><br />
</html></source><br />
<br />
<br />
<br />
== Button Page Counter (VB.net)==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
<%@ Page Language="VB" %><br />
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><br />
<script runat="server"><br />
Sub Button_Click(ByVal sender As Object, ByVal e As EventArgs)<br />
Dim btn As Button = CType(sender, Button)<br />
btn.Text = (Int32.Parse(btn.Text) + 1).ToString()<br />
End Sub<br />
</script><br />
<html xmlns="http://www.w3.org/1999/xhtml" ><br />
<head id="Head1" runat="server"><br />
<title>Button Counters</title><br />
</head><br />
<body><br />
<form id="form1" runat="server"><br />
<div><br />
<br />
First Counter:<br />
<asp:Button<br />
id="Button1"<br />
Text="0"<br />
OnClick="Button_Click" <br />
Runat="server" /><br />
<br />
<br /><br /><br />
<br />
Second Counter: <br />
<asp:Button<br />
id="Button2"<br />
Text="0"<br />
OnClick="Button_Click" <br />
Runat="server" /> <br />
<br />
</div><br />
</form><br />
</body><br />
</html></source><br />
<br />
<br />
<br />
== Calcualate in button click action==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
<%@ Page Language="VB" AutoEventWireup="false" CodeFile="test.aspx.vb" Inherits="Calculator" %><br />
<html xmlns="http://www.w3.org/1999/xhtml" ><br />
<head runat="server"><br />
<title>Untitled Page</title><br />
</head><br />
<body><br />
<form id="form1" runat="server"><br />
<div><br />
Your height (in inches):<br />
<asp:TextBox ID="height" runat="server"></asp:TextBox><br /><br />
<br /><br />
Weight (in pounds):<br />
<asp:TextBox ID="weight" runat="server"></asp:TextBox><br /><br />
<br /><br />
<asp:Button ID="btnSubmit" runat="server" Text="Calculate" /><br /><br />
<br /><br />
<asp:Label ID="results" runat="server"></asp:Label></div><br />
</form><br />
</body><br />
</html><br />
<br />
File: test.aspx.vb<br />
<br />
Partial Class Calculator<br />
Inherits System.Web.UI.Page<br />
Protected Sub btnSubmit_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnSubmit.Click<br />
Dim h As Integer = height.Text<br />
Dim w As Integer = weight.Text<br />
Dim result As Double<br />
result = w / h <br />
results.Text = "value is " & result<br />
End Sub<br />
End Class</source><br />
<br />
<br />
<br />
== Display event arguments==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
<%@ Page Language="VB" %><br />
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><br />
<script runat="server"><br />
Sub btnElephant_Click(ByVal sender As Object, ByVal e As ImageClickEventArgs)<br />
lblX.Text = e.X.ToString()<br />
lblY.Text = e.Y.ToString()<br />
End Sub<br />
</script><br />
<html xmlns="http://www.w3.org/1999/xhtml" ><br />
<head id="Head1" runat="server"><br />
<title>Show EventArgs</title><br />
</head><br />
<body><br />
<form id="form1" runat="server"><br />
<div><br />
<br />
<asp:ImageButton<br />
id="btnElephant"<br />
ImageUrl="http://www.nfex.ru/style/logo.png"<br />
OnClick="btnElephant_Click" <br />
Runat="server" /><br />
<br />
<br /><br />
X Coordinate:<br />
<asp:Label<br />
id="lblX"<br />
Runat="server" /><br />
<br /><br />
Y Coordinate:<br />
<asp:Label<br />
id="lblY"<br />
Runat="server" /><br />
<br />
</div><br />
</form><br />
</body><br />
</html></source><br />
<br />
<br />
<br />
== Hide a controll==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="CheckBoxTest" %><br />
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"><br />
<html xmlns="http://www.w3.org/1999/xhtml"><br />
<head runat="server"><br />
<title>Check Box Test</title><br />
</head><br />
<body><br />
<form id="form1" runat="server"><br />
<div id="container"><br />
<h1>Check Box Test</h1><br />
<div class="box"><br />
Delivery:<br />
<asp:CheckBox ID="chkDelivery" runat="server" <br />
OnCheckedChanged="CheckChanged" AutoPostBack="True" /><br />
<asp:Label ID="labAddress" <br />
runat="server" <br />
Text="Customer Address: " <br />
Visible="false" /><br /><br />
<asp:TextBox ID="txtAddress" <br />
runat="server" <br />
Columns="60" <br />
Visible="False" /><br />
Pizza Styles: <br /><br />
<asp:CheckBox ID="chkThin" runat="server" Text="Thin Crust" /><br />
<br /><br />
<asp:CheckBox ID="chkExtra" runat="server" Text="Extra Sauce" /><br />
</div><br />
<asp:Button ID="btnOrder" runat="server" <br />
Text="Order Pizza" OnClick="btnOrder_Click" /><br />
<strong><asp:Label ID="labMessage" runat="server" /></strong><br />
</div><br />
</form><br />
</body><br />
</html><br />
File: Default.aspx.cs<br />
<br />
using System;<br />
using System.Data;<br />
using System.Configuration;<br />
using System.Collections;<br />
using System.Web;<br />
using System.Web.Security;<br />
using System.Web.UI;<br />
using System.Web.UI.WebControls;<br />
using System.Web.UI.WebControls.WebParts;<br />
using System.Web.UI.HtmlControls;<br />
public partial class CheckBoxTest : System.Web.UI.Page<br />
{<br />
protected void CheckChanged(object sender, System.EventArgs e)<br />
{<br />
if (chkDelivery.Checked)<br />
{<br />
txtAddress.Visible = true;<br />
labAddress.Visible = true;<br />
}<br />
else<br />
{<br />
txtAddress.Visible = false;<br />
labAddress.Visible = false;<br />
}<br />
}<br />
protected void btnOrder_Click(object sender, EventArgs e)<br />
{<br />
labMessage.Text = "Pizza Order Styles: <br/>";<br />
if (chkThin.Checked)<br />
labMessage.Text += chkThin.Text + "<br/>"; ;<br />
if (chkExtra.Checked)<br />
labMessage.Text += chkExtra.Text + "<br/>"; ;<br />
}<br />
}</source><br />
<br />
<br />
<br />
== Important properties, methods and events of Button control==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
AccessKey: specify a key that navigates to the Button control.<br />
CommandArgument: specify a command argument that is passed to the Command event.<br />
CommandName: specify a command name that is passed to the Command event.<br />
Enabled: disable the Button control.<br />
OnClientClick: specify a client-side script that executes when the button is clicked.<br />
PostBackUrl: post a form to a particular page.<br />
TabIndex: specify the tab order of the Button control.<br />
Text: label the Button control.<br />
UseSubmitBehavior: use JavaScript to post a form.<br />
Focus: set the initial form focus to the Button control.<br />
Click: Raised when the Button control is clicked.<br />
Command: Raised when the Button control is clicked. <br />
The CommandName and CommandArgument are passed to this event.</source><br />
<br />
<br />
<br />
== Use asp:button to submit form data (VB.net)==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
<%@Page Language="VB" %><br />
<script runat="server"><br />
Sub tbMessage_Change(Sender As Object,E As EventArgs)<br />
lblMessage.Text = "Hello" + tbMessage.Text<br />
End Sub<br />
</script><br />
<html><br />
<body><br />
<%Response.Write("Our First Page")%><br />
<form runat="server"><br />
Please enter your name:<br />
<asp:textbox id="tbMessage" OnTextChanged="tbMessage_Change" runat=server/><br />
<asp:button id="btSubmit" Text="Submit" runat=server/><br />
<asp:label id="lblMessage" font-size="20pt" runat=server/><br />
</form><br />
</body><br />
</html></source><br />
<br />
<br />
<br />
== Use asp:button to trigger action (C#)==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
<%@ Page Language="C#" %><br />
<script runat="server"><br />
void btAdd_Click(Object Sender, EventArgs e) {<br />
lblMessage.Text = "The answer is: " + (Convert.ToInt32(tbNumber1.Text) + Convert.ToInt32(tbNumber2.Text)).ToString();<br />
}<br />
<br />
void btSubtract_Click(Object Sender, EventArgs e) {<br />
lblMessage.Text = "The answer is: " + (Convert.ToInt32(tbNumber1.Text) - Convert.ToInt32(tbNumber2.Text)).ToString();<br />
}<br />
<br />
void btMultiply_Click(Object Sender, EventArgs e) {<br />
lblMessage.Text = "The answer is: " + (Convert.ToInt32(tbNumber1.Text) * Convert.ToInt32(tbNumber2.Text)).ToString();<br />
}<br />
<br />
void btDivide_Click(Object Sender, EventArgs e) {<br />
lblMessage.Text = "The answer is: " + (Convert.ToInt32(tbNumber1.Text) / Convert.ToInt32(tbNumber2.Text)).ToString();<br />
}<br />
</script><br />
<HTML><br />
<HEAD><br />
</HEAD><br />
<BODY><br />
<form runat="server"><br />
Number 1: <asp:textbox id="tbNumber1" runat=server/><br><br />
Number 2: <asp:textbox id="tbNumber2" runat=server/><br />
<asp:button id="btAdd" Text=" + " OnClick="btAdd_Click" runat=server/><br />
<asp:button id="btSubtract" Text=" - " OnClick="btSubtract_Click" runat=server/><br />
<asp:button id="btMultiply" Text=" * " OnClick="btMultiply_Click" runat=server/><br />
<asp:button id="btDivide" Text=" / " OnClick="btDivide_Click" runat=server/><br />
<asp:label id="lblMessage" font-size="20pt" runat=server/><br />
</form><br />
</BODY><br />
</HTML></source><br />
<br />
<br />
<br />
== Use asp:button to trigger action (VB)==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
<%@ Page Language="VB" %><br />
<script runat="server"><br />
Sub btAdd_Click(Sender As Object, E As EventArgs)<br />
lblMessage.Text = "The answer is: " & Cint(tbNumber1.Text) + Cint(tbNumber2.Text)<br />
End Sub<br />
<br />
Sub btSubtract_Click(Sender As Object, E As EventArgs)<br />
lblMessage.Text = "The answer is: " & Cint(tbNumber1.Text) - Cint(tbNumber2.Text)<br />
End Sub<br />
<br />
Sub btMultiply_Click(Sender As Object, E As EventArgs)<br />
lblMessage.Text = "The answer is: " & Cint(tbNumber1.Text) * Cint(tbNumber2.Text)<br />
End Sub<br />
<br />
Sub btDivide_Click(Sender As Object, E As EventArgs)<br />
lblMessage.Text = "The answer is: " & Cint(tbNumber1.Text) / Cint(tbNumber2.Text)<br />
End Sub<br />
</script><br />
<HTML><br />
<HEAD><br />
</HEAD><br />
<BODY><br />
<form runat="server"><br />
Number 1: <asp:textbox id="tbNumber1" runat=server/><br><br />
Number 2: <asp:textbox id="tbNumber2" runat=server/><br />
<asp:button id="btAdd" Text=" + " OnClick="btAdd_Click" runat=server/><br />
<asp:button id="btSubtract" Text=" - " OnClick="btSubtract_Click" runat=server/><br />
<asp:button id="btMultiply" Text=" * " OnClick="btMultiply_Click" runat=server/><br />
<asp:button id="btDivide" Text=" / " OnClick="btDivide_Click" runat=server/><br />
<asp:label id="lblMessage" font-size="20pt" runat=server/><br />
</form><br />
</BODY><br />
</HTML></source><br />
<br />
<br />
<br />
== UseSubmitBehavior Property==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
<%@ Page Language="C#" %><br />
<br />
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"><br />
<html xmlns="http://www.w3.org/1999/xhtml" ><br />
<head runat="server"><br />
<title>UseSubmitBehavior Property</title><br />
</head><br />
<body><br />
<form id="form1" runat="server"><br />
<div id="pageContent"><br />
<asp:Button ID="Button1" runat="server" Text="Click here" <br />
UseSubmitBehavior="false" /><br />
</div><br />
</form><br />
</body><br />
</html></source><br />
<br />
<br />
<br />
== Using Client Scripts with Button Controls==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
<%@ Page Language="C#" %><br />
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"<br />
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><br />
<script runat="server"><br />
protected void btnDelete_Click(object sender, EventArgs e)<br />
{<br />
lblResult.Text = "All pages deleted!";<br />
}<br />
</script><br />
<html xmlns="http://www.w3.org/1999/xhtml" ><br />
<head id="Head1" runat="server"><br />
<title>Button OnClientClick</title><br />
</head><br />
<body><br />
<form id="form1" runat="server"><br />
<div><br />
<asp:Button<br />
id="btnDelete"<br />
Text="Delete Website"<br />
OnClick="btnDelete_Click"<br />
OnClientClick="return confirm("Are you sure?");"<br />
Runat="server" /><br />
<br /><br /><br />
<asp:Label<br />
id="lblResult"<br />
Runat="server" /><br />
</div><br />
</form><br />
</body><br />
</html></source></div>
Admin