private static SubjectBrowseInput CreateSearchCriteria(NameValueCollection requestData)
{
SubjectBrowseInput criteria = new SubjectBrowseInput
{
APIKey = Utilities.GetQueryStringValue(requestData, "APIKey") ?? String.Empty
};
return(criteria);
}
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;
}
}
protected void Page_Load(object sender, EventArgs e)
{
if (Page.IsPostBack)
{
// get the search criteria so we know what we're trying to find
SubjectBrowseInput criteria = CreateSearchCriteria(Page.Request.QueryString);
// call the search and populate our results table
PopulateData(criteria);
// once we've displayed our results we need to set the display back to the
// criteria values
SearchControl.PopulatePage(criteria);
}
}
/// <summary>
/// Retrieves all Categories.
/// </summary>
/// <param name="request">SubjectBrowseInput request.</param>
/// <exception cref="CourseSearchServiceException">The exception details of the error that has occurred.</exception>
/// <returns>SubjectBrowseOutput object populated with Category details.</returns>
public SubjectBrowseOutput GetCategories(SubjectBrowseInput request)
{
SubjectBrowseOutput sbo;
try
{
sbo = _courseService.GetCategories(request);
}
catch (Exception ex)
{
CourseSearchServiceException exc = new CourseSearchServiceException("An error has occured in the CourseSearchService", ex);
throw exc;
}
return(sbo);
}
/// <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;
}
}
/// <summary>
/// Populates the page controls with the values from the search criteria.
/// </summary>
/// <param name="criteria">The populated search criteria.</param>
public void PopulatePage(SubjectBrowseInput criteria)
{
if (phAPIKey.Visible)
{
const string scriptName = "PopulateCriteria";
Type thisType = this.GetType();
ClientScriptManager mgr = Page.ClientScript;
if (!mgr.IsStartupScriptRegistered(thisType, scriptName))
{
StringBuilder scriptText = new StringBuilder();
scriptText.Append("<script type=text/javascript>" + Environment.NewLine);
// API Key
scriptText.Append(Utilities.GetJavascriptSetValueSnippet("APIKey", criteria.APIKey));
// end
scriptText.Append("</script>");
mgr.RegisterStartupScript(thisType, scriptName, scriptText.ToString());
}
}
}
/// <summary>
/// Gets a list of categories matching the search crietria.
/// </summary>
/// <param name="subjectBrowseInput">Search criteria.</param>
/// <returns>Populated SubjectBrowseOutput containing matching categories.</returns>
public SubjectBrowseOutput GetCategories(SubjectBrowseInput subjectBrowseInput)
{
List <Category> categories = _courseQuery.GetCategories(subjectBrowseInput.APIKey);
return(BuildSubjectBrowseOutput(categories));
}
