ASP.NET Tutorial/Development/Image
Create an image based on query string (C#)
<source lang="csharp">
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="ContentAndGraphics" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server">
<title>Untitled Page</title>
</head> <body>
<form id="form1" runat="server">
<asp:Label id="Label1" runat="server">Here is some content.</asp:Label>
<asp:Image id="Image1" runat="server" ImageUrl="Default.aspx?Name=Joe%20Brown"></asp:Image>
<asp:Label id="Label2" runat="server">Here is some more content.</asp:Label>
</form>
</body> </html>
File: Default.aspx <%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="GraphicalText" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server">
<title>Untitled Page</title>
</head> <body>
<form id="form1" runat="server">
</form>
</body> </html> File: Default.aspx.cs using System; using System.Data; using System.Configuration; using System.Collections; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Drawing; public partial class GraphicalText : System.Web.UI.Page {
protected void Page_Load(object sender, EventArgs e) { if (Request.QueryString["Name"] == null) { }else{ string name = Request.QueryString["Name"]; Bitmap image = new Bitmap(300, 50); Graphics g = Graphics.FromImage(image); g.FillRectangle(Brushes.LightYellow, 0, 0, 300, 50); g.DrawRectangle(Pens.Red, 0, 0, 299, 49); Font font = new Font("Courier New", 20, FontStyle.Regular); g.DrawString(name, font, Brushes.Blue, 10, 0); image.Save(Response.OutputStream,System.Drawing.Imaging.ImageFormat.Gif); g.Dispose(); image.Dispose(); } }
}</source>
Generate Image, paint string with font and draw image (C#)
<source lang="csharp">
File: Default.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="GraphicalText" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server">
<title>Untitled Page</title>
</head> <body>
<form id="form1" runat="server">
</form>
</body> </html>
File: Default.aspx.cs using System; using System.Data; using System.Configuration; using System.Collections; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Drawing; public partial class GraphicalText : System.Web.UI.Page {
protected void Page_Load(object sender, EventArgs e) { Bitmap image = new Bitmap(300, 50); Graphics g = Graphics.FromImage(image); g.FillRectangle(Brushes.LightYellow, 0, 0, 300, 50); g.DrawRectangle(Pens.Red, 0, 0, 299, 49); Font font = new Font("Alba Super", 20, FontStyle.Regular); g.DrawString("This is a test.", font, Brushes.Blue, 10, 0); System.Drawing.Image icon = System.Drawing.Image.FromFile(Server.MapPath("your.gif")); g.DrawImageUnscaled(icon, 240, 0); image.Save(Response.OutputStream,System.Drawing.Imaging.ImageFormat.Gif); g.Dispose(); image.Dispose(); }
}</source>