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<title>Demo Forms</title>
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<div id="control">
<span class="productTitle">ExpTreeLib Demo</span><br />
<span class="topicTitle">Demo Forms and Classes</span><br />
<p>
<a href="../Exp_Index.htm">ExpLib and Demo Package</a><--
<a href="ExpDemo_Index.htm">Exp Demo Index</a><--
Demo Forms
--><a href="frmTemplate.htm">frmTemplate</a>
--><a href="BuildingApp.htm">Building an App</a>
--><a href="../ExpTreeLib/ExpLib_Index.htm">ExpTreeLib Index</a>
</p>
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<h3><a id = "BkMrk_1">Forms in the Demo Project</a></h3>
<p>Each of the Forms listed below features some built-in functionality in the
ListView. <code>frmTemplate</code> is a
good place to start for many applications. <code>frmThread</code> is a better starting point
if the application is likely to be working with any Remote Folders.
<code>frmDragToControl</code> illustrates how ExpTreeLib Classes can be used without an
ExpTree (TreeView) or a ListView.</p>
<table width="80%" style="margin-left:1.5em">
<col valign="top" width="20%" />
<tr>
<th>
Form</th>
<th>
Description</th>
</tr>
<tr>
<td>
<a href="frmTemplate.htm">frmTemplate</a></td>
<td>
Useful as a simple base to develop applications which need a linked
TreeView and ListView as part of the GUI.</td>
</tr>
<tr>
<td>
<a href="frmThread.htm">frmThread</a></td>
<td>
An optimized version of frmTemplate which includes a fully implemented use of
multi-threading to improve the responsiveness of the GUI when displaying remote
and/or very large Folders in the ListView.</td>
</tr>
<tr>
<td>
<a href="frmDragToControl.htm">frmDragToControl</a></td>
<td>
A simple Form which demonstrates how to use the new ExpTreeLib Class
ControlDropWrapper. That Class is a wrapper which handles the Drag and Drop of
Files and Directories to Controls other than ListView and TreeView.
frmDragToControl features a Data Bound DataGridView as the Drop Target for such
Drops.</td>
</tr>
<tr>
<td>
<see cref = "T:ExpTree_Demo_CS">frmThreadCS</see></td>
<td>
A C# implementation of frmThread. It is included as a separate project in the
source Visual Solution that contains ExpTreeLib and the other Forms. It is not
documented separately since it is identical to frmThread in all aspects except
implementation language.</td>
</tr>
</table><br />
<h3><a id = "BkMrk_2">Classes Supporting the Demo Forms</a></h3>
<p>Included are several Classes that at least one Demo Form uses. All Classes except the MyTimer Class are included in
<code>ExpTreeLib</code> Project and Namespace. MyTimer is included in the <code>ExpTree_Demo</code> Project and Namespace.</p>
<table width="80%" style="margin-left:1.5em">
<col valign="top" width="20%" />
<tr>
<th>
Class</th>
<th>
Description</th>
</tr>
<tr>
<td>
<see cref = "T:ExpTreeLib.CDragWrapper">CDragWrapper</see>
</td>
<td>
Completely handles all drag from operation for its' associated ListView
or TreeView control. All TreeNodes in the associated TreeView must have a valid
CShItem in its' .Tag. All ListViewItems in the associated ListView must have a valid
CShItem in its' Tag. All ListViewItems and the CShItems in their .Tags must
be direct children of the same Folder.
</td>
</tr>
<tr>
<td>
<see cref="T:ExpTreeLib.ClvDropWrapper">ClvDropWrapper</see>
</td>
<td>
The ClvDropWrapper class deals with the mechanics of receiving a
Drag/Drop operation for a ListView. In effect, it implements the IDropTarget interface
for a ListView. It is designed to handle a ListView which <b>must</b>
have CShItems in the Tags of the ListViewItems contained in the control.
</td>
</tr>
<tr>
<td>
<see cref="T:ExpTreeLib.CtvDropWrapper">CtvDropWrapper</see>
</td>
<td>
The CtvDropWrapper class deals with the mechanics of receiving a Drag/Drop operation
for a TreeView Control. In effect, it implements the IDropTarget interface for
a TreeView. It is designed to handle a TreeView which <b>must</b> have CShItems
in the Tags of the TreeNodes contained in the control.</td>
</tr>
<tr>
<td>
<see cref="T:ExpTreeLib.ControlDropWrapper">ControlDropWrapper</see></td>
<td>A Class which will handle all DragDrop's of Files and Directories onto any native .Net Control,
except TreeView and ListView, that is
associated with a FileSystem Folder.</td>
</tr>
<tr>
<td>
<a href="LVColSorter.htm">LVColSorter</a></td>
<td>
A Class to serve as the ListViewItemSorter for any ListView. It responds to
clicks on ColumnHeader of the ListView to Sort the ListView by the Clicked
Column. Appropriate Sort Glyphs are displayed in the ColumnHeader.</td>
</tr>
<tr>
<td>
<see cref = "T:ExpTree_Demo.MyTimer">MyTimer</see></td>
<td>
A simple Class, not documented elsewhere, for measuring and reporting elapsed
time. It maintains two timer variable. One timer measures the time from Class
creation. The other timer, initially with the same value as the first, measures
the time since the last time its' value was queried. The use of this Class is
illustrated in frmTemplate - withTimings.vb and frmThread - withTimings.vb. The code in those Forms that uses this
Class has been removed in frmTemplate.vb and frmThread.vb. I
considered using the .Net StopWatch Class, but it seemed like it would have an
impact on the time being measured. </td>
</tr>
</table>
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After 30+ years working in the IT field, mostly managing SysAdmins, I have retired. One of my hobbies returns me to programming, basically just to keep my hand in.
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