/// <summary>
/// Build SubjectBrowseOutput object from collection of Categories.
/// </summary>
/// <remarks>
/// The FetchCategories stored procedure returns Category results in a specific order, e.g.
/// Level 1: .A - Art
/// Level 2: .A.1 - Animation / Multimedia Software
/// Level 3: CC.31 - Animation Software (Use)
/// Level 3: CC.3111 - 3d Studio (Animation Software)
/// Level 3: CC.3122 - Flash (Animation Software)
/// Level 2: .A.10 - Graphics Software
/// Level 3: CC.34 - Drawing / Painting Software (Use)
/// Level 3: CC.34 - Graphics Software (Use)
/// Level 1: .ACE - Adult and Continuing Education
/// Level 2: .ACE.2 - Job Preparation
/// Level 3: HC.1 - Career Planning
/// ... etc.
/// This code expects the results to be in this sequence.
/// </remarks>
/// <param name="categories">Categories collection.</param>
/// <returns>Populated SubjectBrowseOutput object.</returns>
private static SubjectBrowseOutput BuildSubjectBrowseOutput(List <Category> categories)
{
SubjectBrowseOutput subjectBrowseOutput = new SubjectBrowseOutput();
List <Level1> level1s = new List <Level1>();
List <Level2> level2s = new List <Level2>();
List <CategoryInfo> level3s = new List <CategoryInfo>();
Level1 currentLevel1 = null;
Level2 currentLevel2 = null;
CategoryInfo currentLevel3;
foreach (Category category in categories)
{
switch (category.Level)
{
case 1:
currentLevel1 = BuildLevel1(category);
level1s.Add(currentLevel1);
// clear the level 2's so we don't have the
// previous level 1 level 2's in there
level2s.Clear();
break;
case 2:
currentLevel2 = BuildLevel2(category);
if (currentLevel1.Level2 != null)
{
level2s = currentLevel1.Level2.ToList();
}
level2s.Add(currentLevel2);
currentLevel1.Level2 = level2s.ToArray();
// clear the level 3's so we don't have the
// previous level 2 level 3's in there
level3s.Clear();
break;
case 3:
currentLevel3 = BuildCategoryInfo(category);
if (currentLevel2.Level3 != null)
{
level3s = currentLevel2.Level3.ToList();
}
level3s.Add(currentLevel3);
currentLevel2.Level3 = level3s.ToArray();
break;
default:
break;
}
}
subjectBrowseOutput.Level1 = level1s.ToArray();
return(subjectBrowseOutput);
}
private void PopulateData(SubjectBrowseInput request)
{
ServiceInterface client = new ServiceInterfaceClient("CourseSearchService");
try
{
SubjectBrowseOutput response = client.GetCategories(request);
foreach (Level1 level1 in response.Level1)
{
// start Level 1
string level1Text = CreateLevelText(level1.LDCS.LDCSCode, level1.LDCS.LDCSDesc, level1.LDCS.Searchable.ToString(), level1.CourseCounts);
TreeNode level1TreeNode = new TreeNode(level1Text);
level1TreeNode.SelectAction = TreeNodeSelectAction.None;
if (level1.Level2 != null)
{
foreach (Level2 level2 in level1.Level2)
{
// start Level 2
string level2Text = CreateLevelText(level2.LDCS.LDCSCode, level2.LDCS.LDCSDesc, level2.LDCS.Searchable.ToString(), level2.CourseCounts);
TreeNode level2TreeNode = new TreeNode(level2Text);
level2TreeNode.SelectAction = TreeNodeSelectAction.None;
if (level2.Level3 != null)
{
foreach (CategoryInfo level3 in level2.Level3)
{
string level3Text = CreateLevelText(level3.LDCS.LDCSCode, level3.LDCS.LDCSDesc, level3.LDCS.Searchable.ToString(), level3.CourseCounts);
TreeNode level3TreeNode = new TreeNode(level3Text);
level3TreeNode.NavigateUrl = "~\\CourseSearch.aspx?ldcscategorycodes=" + level3.LDCS.LDCSCode + "&APIKey=" + request.APIKey + "&action=search&recordsperpage=10";
// add the level 3 node to the level 2 node
level2TreeNode.ChildNodes.Add(level3TreeNode);
}
}
// add level 2 node to the level 1 node
level1TreeNode.ChildNodes.Add(level2TreeNode);
}
}
// add the level 1 node
TreeView1.Nodes.Add(level1TreeNode);
}
TreeView1.DataBind();
}
catch (Exception ex)
{
ResultsOverviewLabel.Text = ex.Message + "/n/n" + ex.StackTrace;
}
}
/// <summary>
/// On clicking GetCategories button, calls CourseSearchService GetCategories() method wtih test data.
/// </summary>
private void btnGetCategories_Click(object sender, EventArgs e)
{
txtResult.Text = "Processing ...";
ServiceInterface client = new ServiceInterfaceClient("CourseSearch");
SubjectBrowseInput request = new SubjectBrowseInput();
StringBuilder sb = new StringBuilder();
try
{
SubjectBrowseOutput response = client.GetCategories(request);
foreach (Level1 level1 in response.Level1)
{
sb.Append("Level 1:" + level1.LDCS.LDCSCode + "; " + level1.LDCS.LDCSDesc + "; " +
level1.LDCS.Searchable.ToString() + "; " + level1.CourseCounts + "\n");
if (level1.Level2 != null)
{
foreach (Level2 level2 in level1.Level2)
{
sb.Append("Level 2:" + level2.LDCS.LDCSCode + "; " + level2.LDCS.LDCSDesc + "; " +
level2.LDCS.Searchable.ToString() + "; " + level2.CourseCounts + "\n");
if (level2.Level3 != null)
{
foreach (CategoryInfo level3 in level2.Level3)
{
sb.Append("Level 3:" + level3.LDCS.LDCSCode + "; " + level3.LDCS.LDCSDesc + "; " +
level3.LDCS.Searchable.ToString() + "; " + level3.CourseCounts + "\n");
}
}
}
}
sb.Append("\n");
}
txtResult.Text = sb.ToString();
}
catch (Exception ex)
{
txtResult.Text = sb.ToString() + "\n\n" + ex.Message;
}
}
