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HTMLEditor Provider - How to write a custom provider for ASP.NET 2.0

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5 Sep 200614 min read 122.4K   2.4K   123  
A tutorial on how to use the Provider Templates to create your own provider.
<!--
 * FCKeditor - The text editor for internet
 * Copyright (C) 2003-2006 Frederico Caldeira Knabben
 * 
 * Licensed under the terms of the GNU Lesser General Public License:
 * 		http://www.opensource.org/licenses/lgpl-license.php
 * 
 * For further information visit:
 * 		http://www.fckeditor.net/
 * 
 * "Support Open Source software. What about a donation today?"
 * 
 * File Name: fck_image.html
 * 	Image Properties dialog window.
 * 
 * File Authors:
 * 		Frederico Caldeira Knabben (fredck@fckeditor.net)
-->
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
	<title>Image Properties</title>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
	<meta name="robots" content="noindex, nofollow" />
	<script src="common/fck_dialog_common.js" type="text/javascript"></script>
	<script src="fck_image/fck_image.js" type="text/javascript"></script>
	<link href="common/fck_dialog_common.css" rel="stylesheet" type="text/css" />
</head>
<body scroll="no" style="overflow: hidden">
	<div id="divInfo">
		<table cellspacing="1" cellpadding="1" border="0" width="100%" height="100%">
			<tr>
				<td>
					<table cellspacing="0" cellpadding="0" width="100%" border="0">
						<tr>
							<td width="100%">
								<span fcklang="DlgImgURL">URL</span>
							</td>
							<td id="tdBrowse" style="display: none" nowrap="nowrap" rowspan="2">
								&nbsp;
								<input id="btnBrowse" onclick="BrowseServer();" type="button" value="Browse Server"
									fcklang="DlgBtnBrowseServer" />
							</td>
						</tr>
						<tr>
							<td valign="top">
								<input id="txtUrl" style="width: 100%" type="text" onblur="UpdatePreview();" />
							</td>
						</tr>
					</table>
				</td>
			</tr>
			<tr>
				<td>
					<span fcklang="DlgImgAlt">Short Description</span><br />
					<input id="txtAlt" style="width: 100%" type="text" /><br />
				</td>
			</tr>
			<tr height="100%">
				<td valign="top">
					<table cellspacing="0" cellpadding="0" width="100%" border="0" height="100%">
						<tr>
							<td valign="top">
								<br />
								<table cellspacing="0" cellpadding="0" border="0">
									<tr>
										<td nowrap="nowrap">
											<span fcklang="DlgImgWidth">Width</span>&nbsp;</td>
										<td>
											<input type="text" size="3" id="txtWidth" onkeyup="OnSizeChanged('Width',this.value);" /></td>
										<td rowspan="2">
											<div id="btnLockSizes" class="BtnLocked" onmouseover="this.className = (bLockRatio ? 'BtnLocked' : 'BtnUnlocked' ) + ' BtnOver';"
												onmouseout="this.className = (bLockRatio ? 'BtnLocked' : 'BtnUnlocked' );" title="Lock Sizes"
												onclick="SwitchLock(this);">
											</div>
										</td>
										<td rowspan="2">
											<div id="btnResetSize" class="BtnReset" onmouseover="this.className='BtnReset BtnOver';"
												onmouseout="this.className='BtnReset';" title="Reset Size" onclick="ResetSizes();">
											</div>
										</td>
									</tr>
									<tr>
										<td nowrap="nowrap">
											<span fcklang="DlgImgHeight">Height</span>&nbsp;</td>
										<td>
											<input type="text" size="3" id="txtHeight" onkeyup="OnSizeChanged('Height',this.value);" /></td>
									</tr>
								</table>
								<br />
								<table cellspacing="0" cellpadding="0" border="0">
									<tr>
										<td nowrap="nowrap">
											<span fcklang="DlgImgBorder">Border</span>&nbsp;</td>
										<td>
											<input type="text" size="2" value="" id="txtBorder" onkeyup="UpdatePreview();" /></td>
									</tr>
									<tr>
										<td nowrap="nowrap">
											<span fcklang="DlgImgHSpace">HSpace</span>&nbsp;</td>
										<td>
											<input type="text" size="2" id="txtHSpace" onkeyup="UpdatePreview();" /></td>
									</tr>
									<tr>
										<td nowrap="nowrap">
											<span fcklang="DlgImgVSpace">VSpace</span>&nbsp;</td>
										<td>
											<input type="text" size="2" id="txtVSpace" onkeyup="UpdatePreview();" /></td>
									</tr>
									<tr>
										<td nowrap="nowrap">
											<span fcklang="DlgImgAlign">Align</span>&nbsp;</td>
										<td>
											<select id="cmbAlign" onchange="UpdatePreview();">
												<option value="" selected="selected"></option>
												<option fcklang="DlgImgAlignLeft" value="left">Left</option>
												<option fcklang="DlgImgAlignAbsBottom" value="absBottom">Abs Bottom</option>
												<option fcklang="DlgImgAlignAbsMiddle" value="absMiddle">Abs Middle</option>
												<option fcklang="DlgImgAlignBaseline" value="baseline">Baseline</option>
												<option fcklang="DlgImgAlignBottom" value="bottom">Bottom</option>
												<option fcklang="DlgImgAlignMiddle" value="middle">Middle</option>
												<option fcklang="DlgImgAlignRight" value="right">Right</option>
												<option fcklang="DlgImgAlignTextTop" value="textTop">Text Top</option>
												<option fcklang="DlgImgAlignTop" value="top">Top</option>
											</select>
										</td>
									</tr>
								</table>
							</td>
							<td>
								&nbsp;&nbsp;&nbsp;</td>
							<td width="100%" valign="top">
								<table cellpadding="0" cellspacing="0" width="100%" style="table-layout: fixed">
									<tr>
										<td>
											<span fcklang="DlgImgPreview">Preview</span></td>
									</tr>
									<tr>
										<td valign="top">
											<iframe class="ImagePreviewArea" src="fck_image/fck_image_preview.html" frameborder="0"
												marginheight="0" marginwidth="0"></iframe>
										</td>
									</tr>
								</table>
							</td>
						</tr>
					</table>
				</td>
			</tr>
		</table>
	</div>
	<div id="divUpload" style="display: none">
		<form id="frmUpload" method="post" target="UploadWindow" enctype="multipart/form-data"
			action="" onsubmit="return CheckUpload();">
			<span fcklang="DlgLnkUpload">Upload</span><br />
			<input id="txtUploadFile" style="width: 100%" type="file" size="40" name="NewFile" /><br />
			<br />
			<input id="btnUpload" type="submit" value="Send it to the Server" fcklang="DlgLnkBtnUpload" />
			<iframe name="UploadWindow" style="display: none" src="../fckblank.html"></iframe>
		</form>
	</div>
	<div id="divLink" style="display: none">
		<table cellspacing="1" cellpadding="1" border="0" width="100%">
			<tr>
				<td>
					<div>
						<span fcklang="DlgLnkURL">URL</span><br />
						<input id="txtLnkUrl" style="width: 100%" type="text" onblur="UpdatePreview();" />
					</div>
					<div id="divLnkBrowseServer" align="right">
						<input type="button" value="Browse Server" fcklang="DlgBtnBrowseServer" onclick="LnkBrowseServer();" />
					</div>
					<div>
						<span fcklang="DlgLnkTarget">Target</span><br />
						<select id="cmbLnkTarget">
							<option value="" fcklang="DlgGenNotSet" selected="selected">&lt;not set&gt;</option>
							<option value="_blank" fcklang="DlgLnkTargetBlank">New Window (_blank)</option>
							<option value="_top" fcklang="DlgLnkTargetTop">Topmost Window (_top)</option>
							<option value="_self" fcklang="DlgLnkTargetSelf">Same Window (_self)</option>
							<option value="_parent" fcklang="DlgLnkTargetParent">Parent Window (_parent)</option>
						</select>
					</div>
				</td>
			</tr>
		</table>
	</div>
	<div id="divAdvanced" style="display: none">
		<table cellspacing="0" cellpadding="0" width="100%" align="center" border="0">
			<tr>
				<td valign="top" width="50%">
					<span fcklang="DlgGenId">Id</span><br />
					<input id="txtAttId" style="width: 100%" type="text" />
				</td>
				<td width="1">
					&nbsp;&nbsp;</td>
				<td valign="top">
					<table cellspacing="0" cellpadding="0" width="100%" align="center" border="0">
						<tr>
							<td width="60%">
								<span fcklang="DlgGenLangDir">Language Direction</span><br />
								<select id="cmbAttLangDir" style="width: 100%">
									<option value="" fcklang="DlgGenNotSet" selected="selected">&lt;not set&gt;</option>
									<option value="ltr" fcklang="DlgGenLangDirLtr">Left to Right (LTR)</option>
									<option value="rtl" fcklang="DlgGenLangDirRtl">Right to Left (RTL)</option>
								</select>
							</td>
							<td width="1%">
								&nbsp;&nbsp;</td>
							<td nowrap="nowrap">
								<span fcklang="DlgGenLangCode">Language Code</span><br />
								<input id="txtAttLangCode" style="width: 100%" type="text" />&nbsp;
							</td>
						</tr>
					</table>
				</td>
			</tr>
			<tr>
				<td colspan="3">
					&nbsp;</td>
			</tr>
			<tr>
				<td colspan="3">
					<span fcklang="DlgGenLongDescr">Long Description URL</span><br />
					<input id="txtLongDesc" style="width: 100%" type="text" />
				</td>
			</tr>
			<tr>
				<td colspan="3">
					&nbsp;</td>
			</tr>
			<tr>
				<td valign="top">
					<span fcklang="DlgGenClass">Stylesheet Classes</span><br />
					<input id="txtAttClasses" style="width: 100%" type="text" />
				</td>
				<td>
				</td>
				<td valign="top">
					&nbsp;<span fcklang="DlgGenTitle">Advisory Title</span><br />
					<input id="txtAttTitle" style="width: 100%" type="text" />
				</td>
			</tr>
		</table>
		<span fcklang="DlgGenStyle">Style</span><br />
		<input id="txtAttStyle" style="width: 100%" type="text" />
	</div>
</body>
</html>

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Written By
Systems Engineer Virtual RadioLogic
United States United States
Todd Davis has been working in web and application development for several years, using Silverlight, ASP.NET, VB.NET, C#, C++ and Javascript, as well as a great deal of work with SQL server and IIS.

He currently works for Virtual Radiologic in Eden Prairie, MN, however he is better known for his varied work in the open source community, especially the DotNetNuke project for which he provided several world-renowned training videos and modules. A huge advocate of open source and open knowledge sharing, everything on his website (www.SeaburyDesign.com) is always offered for free.

Whenever he is not actively coding at his laptop (a rarity to be sure), he can be found woodworking, walking with his wife and kids, or motoring along the back roads of MN on his Harley Davidson Fatboy.

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