livewebdemo.aspx.cs

非常实用的条形码制作工具

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using Bokai.Barcodes;

	/// <summary>
	/// Summary description for WebForm1.
	/// </summary>
	public class WebForm1 : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.DropDownList Generator;
		protected System.Web.UI.WebControls.Button submitButton;
		protected System.Web.UI.WebControls.HyperLink barcodeURL;
		protected System.Web.UI.WebControls.DropDownList BarcodeType;
		protected System.Web.UI.WebControls.Label Label1;
		protected System.Web.UI.WebControls.Label Label2;
		protected System.Web.UI.WebControls.TextBox Data;
		protected System.Web.UI.WebControls.Label Label3;
		protected System.Web.UI.WebControls.TextBox AddOnData;
		protected System.Web.UI.WebControls.Label Label4;
		protected System.Web.UI.WebControls.DropDownList ImageFormat;
		protected System.Web.UI.WebControls.Label Label5;
		protected System.Web.UI.WebControls.TextBox BarWidth;
		protected System.Web.UI.WebControls.Label Label6;
		protected System.Web.UI.WebControls.Label Label7;
		protected System.Web.UI.WebControls.TextBox Height;
		protected System.Web.UI.WebControls.Label Label8;
		protected System.Web.UI.WebControls.Label Label9;
		protected System.Web.UI.WebControls.TextBox Caption;
		protected System.Web.UI.WebControls.Label Label10;
		protected System.Web.UI.WebControls.TextBox AddOnCaption;
		protected System.Web.UI.WebControls.Label Label11;
		protected System.Web.UI.WebControls.TextBox FontName;
		protected System.Web.UI.WebControls.Label Label12;
		protected System.Web.UI.WebControls.TextBox FontSize;
		protected System.Web.UI.WebControls.Label Label13;
		protected System.Web.UI.WebControls.ListBox FontStyle;
		protected System.Web.UI.WebControls.Label Label14;
		protected System.Web.UI.WebControls.DropDownList TextPosition;
		protected System.Web.UI.WebControls.Label Label15;
		protected System.Web.UI.WebControls.DropDownList AddOnTextPosition;
		protected System.Web.UI.WebControls.Label Label16;
		protected System.Web.UI.WebControls.DropDownList UniBarHeight;
		protected System.Web.UI.WebControls.Label Label17;
		protected System.Web.UI.WebControls.DropDownList StretchText;
		protected System.Web.UI.WebControls.Label Label18;
		protected System.Web.UI.WebControls.DropDownList ShowCode39StartStop;
		protected System.Web.UI.WebControls.Label Label19;
		protected System.Web.UI.WebControls.DropDownList RetainAspectRatio;
		protected System.Web.UI.WebControls.Label Label20;
		protected System.Web.UI.WebControls.DropDownList UpcSmallFont;
		protected System.Web.UI.WebControls.Label Label21;
		protected System.Web.UI.WebControls.TextBox BackColor;
		protected System.Web.UI.WebControls.Label Label22;
		protected System.Web.UI.WebControls.TextBox ForeColor;
		protected System.Web.UI.WebControls.Label Label23;
		protected System.Web.UI.WebControls.DropDownList InvalidDataAction;
		protected BarcodeImage barcodeImage1;
		protected System.Web.UI.WebControls.DropDownList Orientation;
		protected System.Web.UI.WebControls.DropDownList Transparent;
		protected System.Web.UI.HtmlControls.HtmlInputText barcodeUrlText;
		protected System.Web.UI.HtmlControls.HtmlTextArea barcodeUrlArea;
		protected System.Web.UI.WebControls.Label Debug;
		protected System.Web.UI.WebControls.Button submitButton1;
		protected System.Web.UI.HtmlControls.HtmlForm barcodeForm;
		protected System.Web.UI.WebControls.Label Label24;
		protected System.Web.UI.WebControls.Label ModuleCount;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			if (!IsPostBack)
			{
				string str = Request.Url.GetLeftPart(UriPartial.Authority).TrimEnd(new char[] { '/' });
				barcodeUrlArea.Value = str + barcodeImage1.MakeImageUrlBase();
				barcodeURL.NavigateUrl = barcodeUrlArea.Value;
				ModuleCount.Text = barcodeImage1.ModuleCount.ToString();
			}
		}

		#region Web Form Designer generated code
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN: This call is required by the ASP.NET Web Form Designer.
			//
			InitializeComponent();
			base.OnInit(e);
		}
		
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{    
			this.submitButton1.Click += new System.EventHandler(this.submitButton1_Click);
			this.submitButton.Click += new System.EventHandler(this.submitButton_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void Regenerate()
		{
			String text;

			if (Generator.SelectedItem.Value == "handler")
				barcodeImage1.ImageUrl = "BarcodeHandler.aspx";
			else
				barcodeImage1.ImageUrl = "Barcode.aspx";

			// NOTE: some internal Barcode .Net functions are called just to
			// take advantage of some parsing code; they are not indispensable
			// and are not expected to be useful under normal circumstances

			barcodeImage1.BarcodeType = BarcodeWeb.ParseBarcodeType(BarcodeType.SelectedItem.Value);

			text = Data.Text;
			if (text == "") 
				barcodeImage1.UseDefaultData();
			else
				barcodeImage1.Data = text;

			text = AddOnData.Text;
			if (text == "") 
				barcodeImage1.UseDefaultAddOnData();
			else
				barcodeImage1.AddOnData = text;

			barcodeImage1.ImageFormat = BarcodeWeb.ParseImageFormat(ImageFormat.SelectedItem.Value);

			BarcodeWeb.ProcessOrientation(barcodeImage1.Barcode, Orientation.SelectedItem.Value);

			text = BarWidth.Text.Trim();
			if (text != "") barcodeImage1.BarWidth = BarcodeWeb.ParseInt(text, 1);

			text = Height.Text.Trim();
			if (text != "") barcodeImage1.BarcodeHeight = BarcodeWeb.ParseInt(text, 40);

			barcodeImage1.Transparent = BarcodeWeb.ParseBool(Transparent.SelectedItem.Value, false);

			text = Caption.Text;
			if (text != "") barcodeImage1.Caption = text;
	
			text = AddOnCaption.Text;
			if (text != "") barcodeImage1.AddOnCaption = text;

			text = FontName.Text;
			if (text != "") barcodeImage1.Font.Name = text;

			text = FontName.Text;
			if (text != "") barcodeImage1.Font.Name = text;

			text = FontSize.Text.Trim();
			if (text != "") 
				barcodeImage1.Font.Size = new FontUnit(new Unit(BarcodeWeb.ParseSingle(text, 9.0f), UnitType.Point));

			// Default is already this:
			//barcodeImage1.Font.Overline = false;
			//barcodeImage1.Font.Underline = false;
			//barcodeImage1.Font.Italic = false;
			//barcodeImage1.Font.Bold = false;
			//barcodeImage1.Font.Strikeout = false;
			foreach (ListItem li in FontStyle.Items)
			{
				if (!li.Selected) continue;
				switch (li.Text.ToLower()) 
				{
					case "bold":
						barcodeImage1.Font.Bold = true;
						break;
					case "italic":
						barcodeImage1.Font.Italic = true;
						break;
					case "underline":
						barcodeImage1.Font.Underline = true;
						break;
					case "strikeout":
						barcodeImage1.Font.Strikeout = true;
						break;
					case "regular":
					default:
						break;
				}
			}

			barcodeImage1.TextPosition = BarcodeWeb.ParseTextPosition(TextPosition.SelectedItem.Value, BarcodeTextPosition.Below);
			barcodeImage1.AddOnTextPosition = BarcodeWeb.ParseTextPosition(AddOnTextPosition.SelectedItem.Value, BarcodeTextPosition.Above);
			barcodeImage1.UniBarHeight = BarcodeWeb.ParseBool(UniBarHeight.SelectedItem.Value, false);
			barcodeImage1.StretchText = BarcodeWeb.ParseBool(StretchText.SelectedItem.Value, true);
			barcodeImage1.ShowCode39StartStop = BarcodeWeb.ParseBool(ShowCode39StartStop.SelectedItem.Value, true);
			barcodeImage1.RetainAspectRatio = BarcodeWeb.ParseBool(RetainAspectRatio.SelectedItem.Value, false);
			barcodeImage1.UpcSmallFont = BarcodeWeb.ParseBool(UpcSmallFont.SelectedItem.Value, true);

			text = BackColor.Text.Trim();
			if (text != "") 
				barcodeImage1.BackColor = BarcodeWeb.ParseColor(text, System.Drawing.Color.White);

			text = ForeColor.Text.Trim();
			if (text != "") 
				barcodeImage1.ForeColor = BarcodeWeb.ParseColor(text, System.Drawing.Color.Black);

			BarcodeWeb.ProcessInvalidDataAction(barcodeImage1.Barcode, InvalidDataAction.SelectedItem.Value);

			string str = Request.Url.GetLeftPart(UriPartial.Authority).TrimEnd(new char[] { '/' });
			barcodeUrlArea.Value = str + barcodeImage1.MakeFullImageUrl();
			barcodeURL.NavigateUrl = barcodeUrlArea.Value;
			ModuleCount.Text = barcodeImage1.ModuleCount.ToString();
		}

		private void submitButton_Click(object sender, System.EventArgs e)
		{
			Regenerate();
		}

		private void submitButton1_Click(object sender, System.EventArgs e)
		{
			Regenerate();
		}
	}