/// <summary>
/// Creates a NavigationTrailtab for each item in a dataview
/// </summary>
/// <param name="useViewState"></param>
/// <remarks>
/// Please note that there must at least 4 data items and
/// data item 1 and 3 are used for text and URL respectively
/// </remarks>
protected virtual void CreateMyControlHierarchy(bool useViewState)
{
IEnumerable resolvedDataSource = null;
if (useViewState)
{
if ((this.ViewState["RowCount"] != null))
{
resolvedDataSource = new object[int.Parse(this.ViewState["RowCount"].ToString(), CultureInfo.InvariantCulture) + 1];
}
else
{
throw new CustomWebControlException("Unable to retrieve expected data from View State");
}
}
else
{
resolvedDataSource = DataSource;
}
if ((resolvedDataSource != null))
{
foreach (DataRowView dataItem in resolvedDataSource)
{
using (NavigationTrailTab myNavigationTrailTab = new NavigationTrailTab())
{
myNavigationTrailTab.Text = dataItem[1].ToString();
myNavigationTrailTab.Action = dataItem[3].ToString();
mNavigationTrailTab.Add(myNavigationTrailTab);
}
}
}
}
/// <summary>
/// Display Navigation Trail.
/// </summary>
/// <param name="writer"></param>
/// <remarks></remarks>
protected override void RenderContents(HtmlTextWriter writer)
{
if (writer == null)
{
throw new ArgumentNullException("writer", "writer cannot be a null reference (Nothing in Visual Basic)!");
}
// Display the tabs
int i = 0;
for (i = 0; i <= mNavigationTrailTab.Count - 1; i++)
{
NavigationTrailTab objTab = (NavigationTrailTab)mNavigationTrailTab[i];
using (HyperLink hyperLink = new HyperLink())
{
hyperLink.RenderBeginTag(writer);
//hyperLink.CssClass = "NavigationTrail";
hyperLink.Text = objTab.Text;
hyperLink.NavigateUrl = objTab.Action;
hyperLink.ToolTip = objTab.ToolTip;
hyperLink.RenderEndTag(writer);
hyperLink.RenderControl(writer);
}
if (m_Orentation == Orientation.Horizontal)
{
if (i < mNavigationTrailTab.Count - 1)
{
writer.Write(" | ");
}
}
else
{
if (i < mNavigationTrailTab.Count - 1)
{
writer.Write("<br/>");
}
}
}
}