String format leading zeros
string-format-leading-zeros.aspx
<%@ Page Language="C#" AutoEventWireup="true"%>
<!DOCTYPE html>
<script runat="server">
protected void Button1_Click(object sender, System.EventArgs e)
{
//this line create a string variable.
string stringValue = "asp.net examples";
//this line create an integer variable.
int intValue = 12345;
Label1.Text = "string value: " + stringValue.ToString();
Label1.Text += "<br />integer value: " + intValue.ToString();
//string format left padding and right padding
Label1.Text += "<br /><br />string format left padding with 0: " + stringValue.ToString().PadLeft(stringValue.Length + 1, '0');
Label1.Text += "<br />string format left padding with 3 zeros: " + stringValue.ToString().PadLeft(stringValue.Length + 3, '0');
Label1.Text += "<br /><br />string format number to leading 2 zeros: " + intValue.ToString().PadLeft(intValue.ToString().Length + 2, '0');
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>c# example - string format leading zeros</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<h2 style="color:MidnightBlue; font-style:italic;">
c# example - string format leading zeros
</h2>
<hr width="550" align="left" color="Gainsboro" />
<asp:Label
ID="Label1"
runat="server"
Font-Size="Large"
>
</asp:Label>
<br /><br />
<asp:Button
ID="Button1"
runat="server"
Text="string format leading zeros"
OnClick="Button1_Click"
Height="40"
Font-Bold="true"
/>
</div>
</form>
</body>
</html>
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