protected void TreeView1_SelectedNodeChanged(object sender, EventArgs e)
{
List <MergeBlock> blocks;
using (TXTextControl.ServerTextControl tx = new TXTextControl.ServerTextControl())
{
tx.Create();
byte[] data = null;
TextControl1.SaveText(out data, TXTextControl.Web.BinaryStreamType.InternalUnicodeFormat);
tx.Load(data, TXTextControl.BinaryStreamType.InternalUnicodeFormat);
blocks = MergeBlock.GetMergeBlocksFlattened(tx);
}
// select the selected block in the TextControl.Web
foreach (MergeBlock block in blocks)
{
if (block.Name == TreeView1.SelectedValue)
{
TextControl1.Selection = new TXTextControl.Web.Selection(block.StartMarker.Start, block.Length);
break;
}
}
}
/// <summary>
/// Gathers merge blocks in current document.
/// </summary>
/// <returns>Merge blocks in current document.</returns>
public static List <MergeBlock> GetMergeBlocksFlattened(ServerTextControl textControl)
{
ValidateMergeBlockNesting(textControl);
var result = new List <MergeBlock>();
// Get a list of all block start and end markers ordered by their start position:
var blockMarkers = GetBlockMarkersOrdered(textControl);
// Gather blocks:
var startMarkers = new Stack <TXTextControl.DocumentTarget>();
foreach (var marker in blockMarkers)
{
if (marker.TargetName.StartsWith(MergeBlock.BlockStartPrefix, StringComparison.OrdinalIgnoreCase))
{
// Start marker:
startMarkers.Push(marker);
}
else if (marker.TargetName.StartsWith(MergeBlock.BlockEndPrefix, StringComparison.OrdinalIgnoreCase))
{
// End marker:
TXTextControl.DocumentTarget startMarker = startMarkers.Pop(); // Get currently open start marker
var blockNew = new MergeBlock(startMarker, marker);
result.Add(blockNew);
}
}
result.Sort(MergeBlock.SortPosition);
return(result);
}
// add the merge fields to the nodes
private void fillMergeFields(MergeBlock block, TreeNode node)
{
foreach (MergeField field in block.Fields)
{
TreeNode tnField = new TreeNode(field.Name);
tnField.ImageUrl = "images/field.png";
node.ChildNodes.Add(tnField);
}
}
/// <summary>
/// Constructor.
/// </summary>
public MergeBlock(List <DocumentTarget> blockMarkers, ref int i, ServerTextControl textControl, MergeBlock parent)
{
if (!blockMarkers[i].TargetName.StartsWith(BlockStartPrefix))
{
throw new Exception(
"Invalid merge block structure. Block start marker doesn't start with the block start prefix (Marker name: \""
+ blockMarkers[i].TargetName + "\")");
}
_fields = new List <MergeField>();
_children = new List <MergeBlock>();
_parent = parent;
StartMarker = blockMarkers[i++];
// Gather child blocks if any
while ((i < blockMarkers.Count) &&
blockMarkers[i].TargetName.StartsWith(BlockStartPrefix))
{
_children.Add(new MergeBlock(blockMarkers, ref i, textControl, this));
++i;
}
if (i >= blockMarkers.Count)
{ // Not possible
throw new Exception("Invalid merge block structure.");
}
// End marker.
string endMarkerName = blockMarkers[i].TargetName.Substring(BlockEndPrefix.Length);
if (endMarkerName != Name)
{
throw new Exception(
"Invalid merge block structure. End marker name is not the same as the start marker name. (End marker name: \""
+ blockMarkers[i].TargetName + "\")");
}
EndMarker = blockMarkers[i];
// Get fields inside this block but not in child blocks
GetFields(textControl);
}
// read all blocks from the current document and fill the TreeView
private void updateNavigationPanel()
{
List <MergeBlock> blocks;
try
{
using (TXTextControl.ServerTextControl tx = new TXTextControl.ServerTextControl())
{
tx.Create();
byte[] data = null;
TextControl1.SaveText(out data, TXTextControl.Web.BinaryStreamType.InternalUnicodeFormat);
tx.Load(data, TXTextControl.BinaryStreamType.InternalUnicodeFormat);
blocks = MergeBlock.GetMergeBlocks(MergeBlock.GetBlockMarkersOrdered(tx), tx);
}
TreeView1.Nodes.Clear();
fillTreeView(blocks);
TreeView1.ExpandAll();
}
catch { }
}
private static bool IsInside(ApplicationField field, MergeBlock block)
{
int nFldEnd = field.Start + field.Length;
return((block.StartMarker.Start <= field.Start) && (block.EndMarker.Start >= nFldEnd));
}
