ASP.Net/Language Basics/String

Материал из .Net Framework эксперт
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String concatenation (C#)

<%@ Page Language="C#" %>
<script runat="server">
    void page_Load()
    {
         string str;
         str = "Spring" + "Sale";
         lblOut1.Text = str;
    
         string str2;
         DateTime datSaleSpring = Convert.ToDateTime("3/3/2005");
         str2 = "Spring" + " " + "Sale begins " + Convert.ToString(datSaleSpring);
         lblOut2.Text = str2;
    
    
        lblSaleNote3.Text = "Spring" + " " + "Sale begins " + Convert.ToString(datSaleSpring);
        
        string str4;
        str4 = "Sale starts on 3/1/2005";
        str4 = str4 + " and ends on " + txtSaleEnd.Text;
        lblSaleNote4.Text = str4;
        
        string str5;
        str5 = "Sale starts on 3/1/2005 and ends on ";
        str5 += txtSaleEnd.Text;
        lblSaleNote5.Text = str5;
    
    }
</script>
<html>
    <head>
    </head>
    <body>
        <form runat="server">
        <hr>Example 1<br>
        <asp:Label runat="server" ID="lblOut1"/><br/>
        <hr>Example 2<br>
        <asp:Label runat="server" ID="lblOut2"/><br/>
        <hr>Example 3<br>
        <asp:Label runat="server" ID="lblSaleNote3"/><br/>
        <hr>Example 4<br>
        Sale End Date = <asp:TextBox runat="server" ID="txtSaleEnd"/>
        <asp:Button runat="server" Text="Button"></asp:Button><br/>
        <asp:Label runat="server" ID="lblSaleNote4"/><br/>
        <hr>Example 5<br>
        <asp:Label runat="server" ID="lblSaleNote5"/><br/>
        </form>
    </body>
</html>



String format (C#)

<%@ page language="C#" %>
<script runat="server">
    
void BT_Submit_Click(object sender, System.EventArgs e)
{
    this.LT_Name.Text = string.Format("Your name is: {0}", this.TB_Name.Text);
}
    
</script>
<html>
<head runat="server">
    <title>Untitled Page</title>
</head>
<body>
    <form runat="server">
        <p>Please enter your name:
            <br /><br />
            <asp:textbox id="TB_Name" runat="server"/>
            <asp:button id="BT_Submit" runat="server" text="OK" onclick="BT_Submit_Click" />
        </p>
        <p><asp:literal id="LT_Name" runat="server"/></p>
    </form>
</body>
</html>



Sub a string value (VB.net)

<%@ Page Language="VB" %>
<script runat="server">
    
    Sub Button1_Click(sender As Object, e As EventArgs)
      Dim fullString, subString As String
      Dim startPos, length As Integer
    
      startPos = CInt(TextBox2.Text)
      length = CInt(TextBox3.Text)
    
      fullString = TextBox1.Text
      subString = fullString.SubString(startPos, length)
      Label1.Text = subString
    End Sub
</script>
<html>
<head>
</head>
<body>
    <form runat="server">
        <p>
            <asp:TextBox id="TextBox1" runat="server" TextMode="MultiLine" Width="259px" Height="112px"></asp:TextBox>
        </p>
        <p>
            start: 
            <asp:TextBox id="TextBox2" runat="server"></asp:TextBox>
        </p>
        <p>
            length: 
            <asp:TextBox id="TextBox3" runat="server"></asp:TextBox>
        </p>
        <p>
            <asp:Label id="Label1" runat="server">Label</asp:Label>
        </p>
        <p>
            <asp:Button id="Button1" onclick="Button1_Click" runat="server" Text="Show Substring"></asp:Button>
        </p>
    </form>
</body>
</html>
Источник — «http://nfex.ru/index.php?title=ASP.Net/Language_Basics/String&oldid=2186»