ASP.Net/Asp Control/Label — различия между версиями

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Текущая версия на 11:52, 26 мая 2010

asp:Button action to change the asp:Label and generate random number (VB.net)

<%@ Page Language="VB" %>
<script runat="server">
    Sub Button1_Click(sender As Object, e As EventArgs)
      Label3.Visible = False
      Label1.Text = Int(Rnd() * 6) + 1
      Label2.Text = Int(Rnd() * 6) + 1
      If Label1.Text = "1" And Label2.Text = "1" Then
    
        Label5.Text = Label4.Text
        If CInt(Label5.Text) > CInt(Label6.Text) Then
          Label6.Text = label5.Text
        End If
    
        Label4.Text = 0
        Label3.Visible = True
      Else
        Label4.Text = CInt(Label4.Text) + _
                      CInt(Label1.Text) + CInt(Label2.Text)
      End If
    End Sub
    
    Sub Button2_Click(sender As Object, e As EventArgs)
    
      Label6.Text = 0
    
    End Sub
</script>
<html>
<head>
</head>
<body>
    <form runat="server">
        <h1>Snake Eyes! 
        </h1>
        <p>
            Keep going, but don"t get two 1"s... 
        </p>
        <p>
            <asp:Label id="Label1" runat="server" BorderStyle="Solid" Font-Names="Verdana" Font-Size="X-Large" Height="44px">0</asp:Label>
            <asp:Label id="Label2" runat="server" BorderStyle="Solid" Font-Names="Verdana" Font-Size="X-Large" Height="44px">0</asp:Label>
        </p>
        <p>
            <asp:Label id="Label3" runat="server" Visible="False">Ooops, you did it again :(</asp:Label>
        </p>
        <p>
            <asp:Button id="Button1" onclick="Button1_Click" runat="server" Text="Hit me baby one more time..."></asp:Button>
        </p>
        <p>
            <asp:Label id="Label4" runat="server" Font-Names="Verdana" Font-Size="X-Large" ForeColor="Red">0</asp:Label>
        </p>
        <p>
            Last Score:<asp:Label id="Label5" runat="server" Font-Names="Verdana" Font-Size="X-Large" ForeColor="Red">0</asp:Label>
        </p>
        <p>
            High Score: 
            <asp:Label id="Label6" runat="server" Font-Names="Verdana" Font-Size="X-Large" ForeColor="Red">0</asp:Label>
        </p>
        <p>
            <asp:Button id="Button2" onclick="Button2_Click" runat="server" Text="Reset High Scores"></asp:Button>
        </p>
    </form>
</body>
</html>



asp:Label background color (VB.net)

<%@ Page Language="vb" %>
<html>
<head>
   <title>Control Properties Example</title>
   <script runat="server">
      Sub Page_Load()
         Label2.BackColor = System.Drawing.Color.LightBlue
      End Sub
   </script>
</head>
<body>
   <h1>Control Properties Example</h1>
   <form runat="server">
      <asp:table id="MyTable" border="1" cellpadding="5" cellspacing="0" runat="server">
         <asp:tablerow runat="server">
            <asp:tablecell runat="server">
               Default Label:
            </asp:tablecell>
            <asp:tablecell runat="server">
               <asp:label id="Label1" runat="server">
                  Hello, World!
               </asp:label>
            </asp:tablecell>
         </asp:tablerow>
         <asp:tablerow runat="server">
            <asp:tablecell runat="server">
               Label with Properties:
            </asp:tablecell>
            <asp:tablecell runat="server">
               <asp:label id="Label2" font-name="arial" runat="server">
                  Hello, World!
               </asp:label>
            </asp:tablecell>
         </asp:tablerow>
      </asp:table>
   </form>
</body>
</html>



asp:label: border, font and background color

<%@ Page Language=VB Debug=true %>
<script runat=server>
Sub Page_Load(ByVal Sender as Object, ByVal E as EventArgs)
End Sub
</SCRIPT>
<HTML>
<HEAD>
<TITLE>Creating a Basic Label Control</TITLE>
</HEAD>
<form runat="server">
<asp:label 
    id="lblTitle" 
    backcolor="LightGreen"
    borderwidth="7px"
    borderstyle=6
    width="90%"
    font-size="20pt"
    font-name="Lucida Console"
    text="<CENTER>Welcome to<BR>Our Site</CENTER>"
    runat="server"
/>
<BR><BR>
<asp:label 
    id="lblMessage1"
    backcolor="LightYellow"
    font-name="Comic Sans MS"
    font-size="12pt"
    font-italic="True"
    tooltip="Mouse hovering text."
    text="Welcome to our site."
    runat="server"
/>
<BR><BR>
<asp:label 
    id="lblMessage2"
    font-name="Comic Sans MS"
    font-size="12pt"
    font-overline="True"
    text="A message with a line above it."
    runat="server"
/>
<BR><BR>
<asp:label 
    id="lblMessage3"
    font-name="Comic Sans MS"
    font-size="12pt"
    font-strikeout="True"
    text="A message with a line drawn through it."
    runat="server"
/>
</form>
</BODY>
</HTML>



Asp server Label: display server time (C#)

<%@ Page Language="C#" %>
<script runat="server">
    void Page_Load()
    {
      time.Text=DateTime.Now.ToString();
    }
</script>
<html>
<head>
</head>
<body>
    <form runat="server">
       In WebServerLand the time is currently:<asp:Label id="time" runat="server" /> 
    </form>
</body>
</html>



Assign current time to asp label (C#)

<%@ Page Language="C#" %>
<script runat="server">
    void Page_Load()
    {
        lblServerTime.Text = DateTime.Now.ToString();
    }
    
</script>
<html>
<head>
    <title>First Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    
    Welcome to ASP.NET 2.0! The current date and time is:
    
    <asp:Label
        id="lblServerTime"
        Runat="server" />
    
    </div>
    </form>
</body>
</html>



Boolean value toggle: label Visible (C#)

<%@ Page Language="C#" Debug="true" %>
<script runat="server">
    void Page_Load()
    {
       if (Page.IsPostBack)
         lblOut.Visible = !lblOut.Visible;
    }
</script>
<html>
<head>
</head>
<body>
    <form runat="server">
        Click Submit several times 
        <asp:Button id="Button1" runat="server" Text="Submit"></asp:Button>
        <asp:Label id="lblOut" runat="server" text="See Me"></asp:Label>
    </form>
</body>
</html>



BorderWidth, BorderColor, Font-Size, Font-Name, ForeColor, BackColor , ToolTip, Visible for asp:Label (VB.net)

<%@ Page Language=VB Debug=true %>
<script runat=server>
Sub Page_Load(ByVal Sender as Object, ByVal E as EventArgs)
    lbl1.BorderStyle = 9
    lbl1.Text = "Sample Border Style: " _
        & 9
End Sub
Sub SubmitBtn_Click(Sender As Object, E As EventArgs)
    lbl1.BorderStyle = txtBorderStyle.Text
    lbl1.Text = "Sample Border Style: " _
        & txtBorderStyle.Text
End Sub
</SCRIPT>
<HTML>
<HEAD>
<TITLE>Label Controls Sample Page</TITLE>
</HEAD>
<BODY >
<form runat="server">
<Font Face="Tahoma" Size="+1">
<asp:Label 
    id="lbl1" 
    BorderWidth="7px"
    BorderColor="Blue"
    Width="90%"
    Font-Size="25pt"
    Font-Name="Arial"
    runat="server"
/>
<asp:Label 
    id="lbl2" 
    Font-Size="12pt"
    Font-Bold="True"
    Font-Name="Lucida Console"
    ForeColor="DarkRed"
    BackColor="Silver"
    Text="<BR><BR>Enter a Border Style"
    ToolTip="Number must be between 0 and 9"
    runat="server"
/>
<BR><BR>
<asp:Label 
    id="lbl3" 
    Text="Will not see me."
    Visible="False"
    runat="server"
/>
<asp:TextBox 
    id="txtBorderStyle" 
    Columns="25"
    MaxLength="30"
    runat=server 
/>
<BR><BR>
<asp:Button 
    id="butOK"
    text="OK"
    Type="Submit"
    OnClick="SubmitBtn_Click" 
    runat="server"
/>
</Font>
</Form>
</BODY>
</HTML>



Change asp label text in asp button action (C#)

<%@ Page Language="C#" %>
<script runat="server">
    protected void btnAdd_Click(object sender, EventArgs e)
    {
        Label1.Text = (Int32.Parse(Label1.Text) + 1).ToString();
        Label2.Text = (Int32.Parse(Label2.Text) + 1).ToString();
    }
</script>
<html>
<head>
    <title>Disable View State</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    
    Label 1:
    <asp:Label
        id="Label1"
        EnableViewState="false"
        Text="0"
        Runat="server" />
    Label 2:
    <asp:Label
        id="Label2"
        Text="0"
        Runat="server" />
    
    <asp:Button
        id="btnAdd"
        Text="Add"
        OnClick="btnAdd_Click" 
        Runat="server" />
    
    </div>
    </form>
</body>
</html>



Change Label to be visible (C#)

<%@ Page Language="C#" %>
<script runat="server">
    protected void btnSubmit_Click(object sender, EventArgs e)
    {
        lblMessage.Visible = true;
    }
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
    <title>Simple Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    <asp:Button 
        id="btnSubmit"
        Text="Click Here!"
        OnClick="btnSubmit_Click"
        Runat="server" />
    
    <br /><br />
    
    <asp:Label
        id="lblMessage"
        Text="Thank You!"
        Visible="false"
        Runat="server" />
    
    
    </div>
    </form>
</body>
</html>



Define function to change Label Font to Italic (C#)

<%@ Page Language="C#" Debug="true" %>
<script runat="server">
    void Page_Load()
    {
        MakeItalic(Label1, CheckBox1.Checked);
        MakeItalic(Label2, CheckBox2.Checked);
        MakeItalic(Label3, CheckBox3.Checked);
    }
    
    void MakeItalic(Label TargetLabel, bool ItalicYN)
    {
        TargetLabel.Font.Italic = ItalicYN;
    }
</script>
<html>
<head>
    <title>Parameter Web Controls</title>
</head>
<body>
    <form runat="server">
        <table>
            <tbody>
                <tr>
                    <td>
                        <asp:CheckBox id="CheckBox1" runat="server"></asp:CheckBox>
                    </td>
                    <td>
                        <asp:CheckBox id="CheckBox2" runat="server"></asp:CheckBox>
                    </td>
                    <td>
                        <asp:CheckBox id="CheckBox3" runat="server"></asp:CheckBox>
                    </td>
                </tr>
                <tr>
                    <td>
                        <asp:Label id="Label1" runat="server" text="Label1"></asp:Label></td>
                    <td>
                        <asp:Label id="Label2" runat="server" text="Label2"></asp:Label></td>
                    <td>
                        <asp:Label id="Label3" runat="server" text="Label3"></asp:Label></td>
                </tr>
            </tbody>
        </table>
        <asp:Button id="Button1" runat="server" Text="Change Font Style"></asp:Button>
    </form>
</body>
</html>



Display all page event in asp label (C#)

<%@ Page Language="C#" %>
<script runat="server">
    void Page_Load(object sender, EventArgs e)
    {
        Label1.Text = "Page Load";
    }
    void Button1_Click(object sender, EventArgs e)
    {
        Label1.Text += "<br />Button Click";
    }
    void Page_PreRender()
    {
        Label1.Text += "<br />Page PreRender";
    }
</script>
<html>
<head>
    <title>Show Page Events</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    
    <asp:Button
        id="Button1"
        Text="Click Here"
        OnClick="Button1_Click"
        Runat="server" />
    
    <asp:Label
        id="Label1"
        Runat="server" />
    
    </div>
    </form>
</body>
</html>



Do a simple calculation and set value to asp:Label (VB.net)

<script language="vb" runat="server"> 
Sub Page_Load()
  Dim intEarn As Integer 
  Dim intTax As Integer
  Dim decTotal As Decimal
  intEarn = 150
  intTax = 23 
  decTotal = intEarn - ((intEarn/100)*intTax)
  Display1.Text = decTotal 
End Sub
</script>
<html>
<head>
  <title>Declaring Variables</title>
</head>
<body>
  Your total earnings after tax are $
  <asp:label id="Display1" runat="server" />
</body>
</html>



Label"s color

<%@ Page Language="vb" %>
<html>
   <head>
      <title>Init event example</title>
      <script runat="server">
         Dim TheColor As System.Drawing.Color
         Sub Page_Init()
            TheColor = System.Drawing.Color.Red
         End Sub
         Sub Page_Load()
            Message.ForeColor = TheColor
            Message.Text = "The color of this text was set in Page_Init."
            TheColor = System.Drawing.Color.Blue
            Message2.ForeColor = TheColor
            Message2.Text = "The color of this text was set in Page_Load."
         End Sub
      </script>
   </head>
<body>
   <asp:label id="Message" runat="server"/>
   <br/>
   <asp:label id="Message2" runat="server"/>
</body>
</html>



Set Asp Label Text during page load (C#)

<%@ Page Language="C#" %>
<script runat="server">
    void Page_Load()
    {
       Message.Text="The ASP.NET line";
    }
</script>
<html>
<head>
    <title>Inserting ASP.NET code Example</title>
</head>
<body>
    <asp:Label id="Message" runat="server"></asp:Label>
    <br />
</body>
</html>



Set asp:Label text (VB.net)

<script language="VB" runat="server">
Sub Page_Load()
  Message.Text="The ASP.NET line"
End Sub
</script>
<html>
<head>
<title>Inserting ASP.NET code Example</TITLE>
</head>
<body>
First HTML Line<br/>
<asp:label id=Message runat="server"/> <br />
Second HTML Line<br/>
</body>
</html>



Set color and font for an asp:Label (VB.net)

<%@ Page Language="VB" %>
<script runat="server">
    Dim ColorList(6) as String
    Dim FontList as new ArrayList()
    
    Sub Page_Load
      ColorList(0) = "Red"
      ColorList(1) = "Orange"
      ColorList(2) = "Yellow"
      ColorList(3) = "Green"
      ColorList(4) = "Blue"
      ColorList(5) = "Indigo"
      ColorList(6) = "Violet"
    
      FontList.Add("Times New Roman")
      FontList.Add("Arial")
      FontList.Add("Verdana")
      FontList.Add("Comic Sans MS")
    
      If Not Page.IsPostback
        Dim ColorName as String
    
        For Each ColorName in ColorList
          ddlColorList.Items.Add(ColorName)
        Next
    
        ddlFontList.DataSource = FontList
        ddlFontList.DataBind()
    
      End If
    End Sub
    
    Sub btnSelectColor_Click(sender As Object, e As EventArgs)
      lblOutputMessage.Text = "You selected " & _
        ddlColorList.SelectedItem.Value & " text written in " & _
        ddlFontList.SelectedItem.Value
      lblOutputMessage.ForeColor = _
        System.Drawing.Color.FromName(ddlColorList.SelectedItem.Text)
      lblOutputMessage.Font.Name = _
        ddlFontList.SelectedItem.Text
    
    End Sub
</script>
<html>
<head>
</head>
<body>
    <form runat="server">
        <p>
            Select a color from the list:<asp:DropDownList id="ddlColorList" runat="server"></asp:DropDownList>
        </p>
        <p>
            Then select a font sytle from the list: 
            <asp:DropDownList id="ddlFontList" runat="server"></asp:DropDownList>
        </p>
        <p>
            &nbsp;<asp:Button id="btnSelectColor" onclick="btnSelectColor_Click" runat="server" Text="Click here!"></asp:Button>
        </p>
        <p>
            <asp:Label id="lblOutputMessage" runat="server"></asp:Label>
        </p>
    </form>
</body>
</html>



Set Label background color (C#)

<%@ Page Language="C#" %>
<script runat="server">
    void page_Load()
    {
         if(Page.IsPostBack)
         {
             if(chkIsMember.Checked==true){
                 lblOut.Text = "Members get a free ticket";
                 lblOut.BackColor=System.Drawing.Color.LightPink;
             }
             else if(Convert.ToInt32(txtAge.Text)<=18) {
                 lblOut.Text = "Students get a free ticket";
                 lblOut.BackColor=System.Drawing.Color.LightPink;
             }else {
                 lblOut.Text = "Price is 500";
                 lblOut.BackColor=System.Drawing.Color.LightSeaGreen;
             }
         }
    }
</script>
<html>
<head>
</head>
<body>
    <br />
    <form runat="server">
        Please enter your age 
        <asp:TextBox id="txtAge" runat="server"></asp:TextBox>
        <br />
        Are you a member? 
        <asp:CheckBox id="chkIsMember" runat="server"></asp:CheckBox>
        <asp:Button id="Button1" runat="server" Text="Submit"></asp:Button>
        <br />
        <asp:Label id="lblOut" runat="server"></asp:Label>
        <br />
    </form>
</body>
</html>



Set Label style (VB.net)

<%@ Page Language="vb" %>
<html>
<head>
   <title>Control Properties Example</title>
   <script runat="server">
      Sub Page_Load()
         Label2.Style("background-color") = "silver"
      End Sub
   </script>
   <style>
       .Hello   
       { 
           font: 14pt arial; 
           color:blue;
       }
   </style>
</head>
<body>
   <h1>Control Properties Example</h1>
   <form runat="server">
      <asp:table id="MyTable" border="1" cellpadding="5" cellspacing="0" runat="server">
         <asp:tablerow runat="server">
            <asp:tablecell runat="server">
               HtmlInputText Control:
            </asp:tablecell>
            <asp:tablecell runat="server">
               <input id="Text1" type="text" 
                  style="font: 12pt arial; background-color:silver; color:red;" 
                  runat="server"/>
            </asp:tablecell>
         </asp:tablerow>
         <asp:tablerow runat="server">
            <asp:tablecell runat="server">
               Label with Style:
            </asp:tablecell>
            <asp:tablecell runat="server">
               <asp:label id="Label2" cssclass="Hello" runat="server">
                  Hello, World!
               </asp:label>
            </asp:tablecell>
         </asp:tablerow>
      </asp:table>
   </form>
</body>
</html>



Set static asp:Label value

<html>
<body>
  <asp:label id="Message1" runat="server" text="Chris"/>
    you have selected to receive information about 
  <asp:label id="Message2" runat="server" text="Oslo"/> 
The information pack will be sent out within the next 24 hours.
</body>
</html>



Your First Page: display a Text runat Server (VB.net)

<%@ Page Language=VB Debug=true %>
<script runat=server>
Sub Page_Load(ByVal Sender as Object, ByVal E as EventArgs)
    lblMessage.Text = "www.nfex.ru"
End Sub
</SCRIPT>
<HTML>
<HEAD>
<TITLE>Hello Web Sample Page</TITLE>
</HEAD>
<BODY>
    <form runat="server">
    <Font Face="Tahoma">
    <asp:Label id="lblTitle" Width="90%" Font-Size="25pt" Font-Name="Arial"  Text="Test Page"
        runat="server"
    />
    <asp:Label
        id="lblMessage"
        runat="Server"
        Font-Bold="True"
    />
</Font>
</Form>
</BODY>
</HTML>
Источник — «http://nfex.ru/index.php?title=ASP.Net/Asp_Control/Label&oldid=2133»