|
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 TreeGenerator;
using System.Drawing;
using System.Web.Caching;
using System.Xml;
public partial class ShowTree : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
/// <summary>
/// Generates tree data randomely on the fly.
/// In real life this function would be used to get the data from the DB.
/// </summary>
/// <param name="topID"></param>
/// <returns></returns>
private TreeGenerator.TreeData.TreeDataTableDataTable GetDT(string topID)
{
TreeGenerator.TreeData.TreeDataTableDataTable Result = new TreeData.TreeDataTableDataTable();
//add the parent
Result.AddTreeDataTableRow(topID, "", topID, "");
Random r = new Random();
int childCount = r.Next(4);
string childName;
for(int i=0;i<=childCount;i++)
{
//randomely add some children
childName = topID + "-" + i.ToString();
Result.AddTreeDataTableRow(childName, topID, childName, "");
}
return Result;
}
/// <summary>
/// Show the Tree based on what the user clicked
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void btnShowBOM_Click(object sender, EventArgs e)
{
if (txtItem.Text.Trim().Length > 0)
{
GenerateChart(txtItem.Text);
}
}
/// <summary>
/// This is called based on where the user clicked on the imagemap
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void impBOM_Click(object sender, ImageMapEventArgs e)
{
GenerateChart(e.PostBackValue);
}
/// <summary>
/// Generate the chart image and save it in the cache, to be used by the image.aspx
/// </summary>
private void GenerateChart(string mItem)
{
//crate the chart object
TreeGenerator.TreeBuilder currentBOM = new TreeGenerator.TreeBuilder(GetDT(mItem));
//specify visual properties
currentBOM.HorizontalSpace = 15;
currentBOM.VerticalSpace = 15;
currentBOM.FontSize = 7;
currentBOM.BoxHeight = 80;
currentBOM.BoxWidth = 80;
currentBOM.LineColor = System.Drawing.ColorTranslator.FromHtml("#BFBFC9");
currentBOM.FontColor = System.Drawing.ColorTranslator.FromHtml("#3B4164");
System.Drawing.Image OC =
System.Drawing.Image.FromStream(currentBOM.GenerateTree(mItem,
System.Drawing.Imaging.ImageFormat.Bmp));
string nameOfImage = Session.SessionID + "CurrentImage";
//save in the cache, to be used by the page creating the image
Cache.Insert(nameOfImage, OC, null, DateTime.MaxValue, TimeSpan.FromMinutes(1), CacheItemPriority.NotRemovable, null);
//update the item image map
//supply the image name by querystring
impBOM.ImageUrl = "~/OrgChartImage.aspx?ID=" + nameOfImage;
//remove all hotspots
impBOM.HotSpots.Clear();
//regenerate the hotspots.
foreach (XmlNode oNode in currentBOM.xmlTree.SelectNodes("//Node"))
{
RectangleHotSpot RectHS = new RectangleHotSpot();
RectHS.HotSpotMode = HotSpotMode.PostBack;
Rectangle currentRect = currentBOM.getRectangleFromNode(oNode);
RectHS.Top = currentRect.Top;
RectHS.Bottom = currentRect.Bottom;
RectHS.Left = currentRect.Left;
RectHS.Right = currentRect.Right;
RectHS.PostBackValue = oNode.Attributes["nodeID"].InnerText;
RectHS.AlternateText = oNode.Attributes["nodeDescription"].InnerText;
impBOM.HotSpots.Add(RectHS);
//SelectedEmployee = EmpRec.EmployeeData.EmployeeName;
}
}
}
|
By viewing downloads associated with this article you agree to the Terms of Service and the article's licence.
If a file you wish to view isn't highlighted, and is a text file (not binary), please
let us know and we'll add colourisation support for it.
This member has not yet provided a Biography. Assume it's interesting and varied, and probably something to do with programming.