Error executing template "/Designs/PLC/Paragraph/UnsubscribeNewsLetterParagraph.cshtml"
System.ArgumentNullException: Value cannot be null.
Parameter name: s
   at System.Convert.FromBase64String(String s)
   at CompiledRazorTemplates.Dynamic.RazorEngine_db36f30f13d04663ab8ccebbfa10ebd5.Execute() in E:\website\PLCMalaysia\Solution\Files\Templates\Designs\PLC\Paragraph\UnsubscribeNewsLetterParagraph.cshtml:line 76
   at RazorEngine.Templating.TemplateBase.RazorEngine.Templating.ITemplate.Run(ExecuteContext context, TextWriter reader)
   at RazorEngine.Templating.RazorEngineService.RunCompile(ITemplateKey key, TextWriter writer, Type modelType, Object model, DynamicViewBag viewBag)
   at RazorEngine.Templating.RazorEngineServiceExtensions.<>c__DisplayClass16_0.b__0(TextWriter writer)
   at RazorEngine.Templating.RazorEngineServiceExtensions.WithWriter(Action`1 withWriter)
   at Dynamicweb.Rendering.Template.RenderRazorTemplate()


  1	@using System.Web;
  2	@using System.Text;
  3	
  4	@{
  5		init();
  6	}
  7	
  8	@functions {
  9		private int columnsWritten { get; set; }
 10		private int columns { get; set; }
 11	
 12		public void init()
 13		{
 14			columnsWritten = Dynamicweb.Core.Converter.ToInt32(System.Web.HttpContext.Current.Items["currentColumns"]);
 15			columns = GetInteger("Item.Width");
 16			System.Web.HttpContext.Current.Items["currentColumns"] = columnsWritten + GetInteger("Item.Width");
 17		}
 18	
 19		public void Fluid()
 20		{
 21			columnsWritten = Dynamicweb.Core.Converter.ToInt32(System.Web.HttpContext.Current.Items["currentColumns"]);
 22			columns = 12;
 23			System.Web.HttpContext.Current.Items["currentColumns"] = columnsWritten + 12;
 24		}
 25	
 26		public string ColumnClass()
 27		{
 28			if (GetString("Item.WidthMobile") == "hide"){
 29				return "col-md-" + GetString("Item.Width") + " hidden-xs";
 30			} else {
 31				return "col-md-" + GetString("Item.Width") + " col-xs-" + GetString("Item.WidthMobile");
 32			}
 33		}
 34		
 35		public string NewRow()
 36		{
 37			if (columns + columnsWritten > 12)
 38			{
 39				System.Web.HttpContext.Current.Items["currentColumns"] = columns;
 40	return "</div><div class='clearfix'></div><div class=\"grid\">";
 41			}
 42			else
 43			{
 44				return string.Empty;
 45			}
 46			
 47		}
 48	}
 49	@NewRow()
 50	
 51	
 52	@{
 53	    string requestUrl = "http://" + GetGlobalValue("Global:Request.Host");
 54	    Dynamicweb.Security.UserManagement.User user = new Dynamicweb.Security.UserManagement.User();
 55	  	/* BEGIN cheating to hide "username" query parameter value. PLC would like to hide user email address. PLC should not request to hide and DW should not implement this way. */
 56			try
 57			{
 58	            string usernameParamValue = Convert.ToString(System.Web.HttpContext.Current.Request["username"]);
 59				string counterParamValue = Convert.ToString(System.Web.HttpContext.Current.Request["usernamecounter"]);
 60	            if(!string.IsNullOrEmpty(usernameParamValue) && string.IsNullOrEmpty(counterParamValue) && usernameParamValue.Contains("@"))
 61	            {
 62					byte[] usernameByte = Encoding.UTF8.GetBytes(usernameParamValue);
 63					string usernameBase64 = Convert.ToBase64String(usernameByte);
 64					string customParam = "username=" + usernameBase64 + "&usernamecounter=" + DateTime.Now.ToString("MMhhddmmyyyyss");
 65					string currentPageUrl = "/default.aspx?Id=" + GetString("Global.PageId");
 66					string redirectUrl = currentPageUrl + "&" + customParam;
 67					System.Web.HttpContext.Current.Response.Redirect(redirectUrl);
 68	            }
 69			} catch { /* nothing can do. */ }
 70			/* END cheating to hide "username" query parameter value. PLC would like to hide user email address */
 71	
 72			HttpRequest quest = System.Web.HttpContext.Current.Request;
 73			//string Queryusername = quest.QueryString["username"];
 74			//string queryUserId = quest.QueryString["userid"];
 75	
 76	        var userNameBytes = System.Convert.FromBase64String(quest.QueryString["username"]);
 77	        var Queryusername = System.Text.Encoding.UTF8.GetString(userNameBytes);
 78	        user = Dynamicweb.Security.UserManagement.User.GetUserByUserName(Queryusername);
 79	        if (user == null)
 80	        {
 81	        	var userIdBytes = System.Convert.FromBase64String(quest.QueryString["userid"]);
 82	        	var queryUserId = System.Text.Encoding.UTF8.GetString(userIdBytes);
 83	        	user = Dynamicweb.Security.UserManagement.User.GetUserByID(Convert.ToInt32(queryUserId));
 84	        }
 85	    
 86	
 87		if (user != null)
 88		{
 89			user.EmailAllowed = false;
 90			user.RemoveFromGroup(1841);
 91			user.Save();
 92		}
 93		else
 94		{
 95			//System.Web.HttpContext.Current.Response.Redirect("Default.aspx?ID=8794");
 96		}
 97	}
 98	
 99	<div class="@ColumnClass()">
100	
101	    @if (GetString("Item.Order") == "title-first" || GetString("Item.Order") == "")
102	    {
103	        @RenderHeading()
104	        @RenderSubHeading()
105	        @RenderImage()
106	        @RenderText()
107	        @RenderModule()
108	        @RenderButton()
109	    }
110	
111	    @if (GetString("Item.Order") == "image-first")
112	    {
113	
114	        @RenderImage()
115	        @RenderSubHeading()
116	        @RenderHeading()
117	        @RenderText()
118	        @RenderModule()
119	        @RenderButton()
120	    }
121	
122	    @if (GetString("Item.Order") == "title-sub-first")
123	    {
124	        @RenderHeading()
125	        @RenderSubHeading()
126	        @RenderImage()
127	        @RenderText()
128	        @RenderModule()
129	        @RenderButton()
130	    }
131	
132	    @if (GetString("Item.Order") == "icon-xs")
133	    {
134	        <div class="col-md-2">
135	            @RenderImage()
136	        </div>
137	        <div class="col-md-10">
138	            @RenderHeading()
139	            @RenderSubHeading()
140	            @RenderText()
141	            @RenderModule()
142	            @RenderButton()
143	        </div>
144	    }
145	
146	    @if (GetString("Item.Order") == "icon-sm")
147	    {
148	        <div class="col-md-3">
149	            @RenderImage()
150	        </div>
151	        <div class="col-md-9">
152	            @RenderHeading()
153	            @RenderSubHeading()
154	            @RenderText()
155	            @RenderModule()
156	            @RenderButton()
157	        </div>
158	    }
159	
160	    @if (GetString("Item.Order") == "icon-md")
161	    {
162	        <div class="col-md-4">
163	            @RenderImage()
164	        </div>
165	        <div class="col-md-8">
166	            @RenderHeading()
167	            @RenderSubHeading()
168	            @RenderText()
169	            @RenderModule()
170	            @RenderButton()
171	        </div>
172	    }
173	
174	</div>
175	
176	
177	@helper RenderHeading()
178	{
179	    if (GetBoolean("Item.ShowTitle") != false)
180	    {
181	        if (!string.IsNullOrEmpty(GetString("Item.Title")))
182	        {
183	            <h2 id="paragraphid" style="margin-left:20px;">@GetString("Item.Title") </h2>
184	        }
185	    }
186	}
187	
188	@helper RenderButton()
189	{
190	    var Url = GetString("Item.Link");
191	
192	    if (!string.IsNullOrEmpty(Url) && !string.IsNullOrEmpty(GetString("Item.LinkText")))
193	    {
194	        if (Url.Contains("http"))
195	        {
196	            <text>
197	                <p style="float:none !important; margin-bottom:30px !important; text-align:center !important; width: 110% !important;">
198	                    <a href="@GetString("Item.Link")" target="_blank" class="btn btn-dw-primary">@GetString("Item.LinkText")</a>
199	                </p>
200	            </text>
201	        }
202	        else if (Url.Contains("/"))
203	        {
204	            <text>
205	                <p style="float:none !important; margin-bottom:30px !important; text-align:center !important; width: 110% !important;">
206	                    <a href="@GetString("Item.Link")" class="btn btn-dw-primary" download>@GetString("Item.LinkText")</a>
207	                </p>
208	            </text>
209	        }
210	        else
211	        {
212	            <text>
213	                <p style="float:none !important; margin-bottom:30px !important; text-align:center !important; width: 110% !important;">
214	                    <a href="@GetString("Item.Link")" class="btn btn-dw-primary" style="margin-left: -40px;">@GetString("Item.LinkText")</a>
215	                </p>
216	            </text>
217	        }
218	    }
219	}
220	
221	@helper RenderSubHeading()
222	{
223	    if (!string.IsNullOrEmpty(GetString("Item.Subtitle")))
224	    {
225	        <h3 style="margin-left:20px;">
226	            @GetString("Item.Subtitle")
227	        </h3>
228	    }
229	}
230	
231	@helper RenderText()
232	{
233	    if (!string.IsNullOrWhiteSpace(GetString("Item.Text")))
234	    {
235	
236	        <div class="figure" style="margin: -23px 0 -20px 0px;">
237	            @GetString("Item.Text")
238	        </div>
239	    }
240	}
241	
242	@helper RenderModule()
243	{
244	    @GetString("ParagraphModule")
245	}
246	
247	@helper RenderImage()
248	{
249	    if (!string.IsNullOrEmpty(GetString("Item.Image")))
250	    {
251	        var image = System.Web.HttpContext.Current.Server.UrlEncode(GetString("Item.Image"));
252	
253	        <!-- Choosing the smallest possible width that will work with responsive sizes -->
254	        string optimizedwidth = "1280";
255	
256	        switch (GetString("Item.Width"))
257	        {
258	            case "12":
259	                optimizedwidth = "1280";
260	                break;
261	            case "9":
262	                optimizedwidth = "960";
263	                break;
264	            case "6":
265	                optimizedwidth = "722";
266	                break;
267	            case "3":
268	                optimizedwidth = "722";
269	                break;
270	            case "8":
271	                optimizedwidth = "960";
272	                break;
273	            case "4":
274	                optimizedwidth = "722";
275	                break;
276	        }
277	
278	        string optimizedheight = ((Convert.ToInt32(optimizedwidth) / 16) * 9).ToString();
279	
280	        if (GetString("Item.ImageStyle") == "ball")
281	        {
282	            optimizedwidth = "500";
283	            optimizedheight = "500";
284	        }
285	
286	
287	        if (string.IsNullOrEmpty(GetString("Item.Link")))
288	        {
289	            <div class="img-responsive dw-std-image" style="padding-bottom: 15px;">
290	                <img class="content-image img-responsive" width="@optimizedwidth" height="@optimizedheight" style="@GetImageBorderCss()" src="/Admin/Public/GetImage.ashx?width=@optimizedwidth&amp;height=@optimizedheight&amp;crop=7&amp;Compression=75&amp;image=@image" alt='@GetString("Item.Title")' />
291	            </div>
292	        }
293	        else
294	        {
295	            <a href="@GetString("Item.Link")">
296	                <div class="img-responsive dw-std-image" style="padding-bottom: 15px;">
297	                    <img class="content-image img-responsive" width="@optimizedwidth" height="@optimizedheight" style="@GetImageBorderCss()" src="/Admin/Public/GetImage.ashx?width=@optimizedwidth&amp;height=@optimizedheight&amp;crop=7&amp;Compression=75&amp;image=@image" alt='@GetString("Item.Title")' />
298	                </div>
299	            </a>
300	        }
301	    }
302	}
303	
304	@functions {
305	    private string GetImageBorderCss()
306	    {
307	        if (GetString("Item.ImageStyle") == "cover")
308	        {
309	            return "padding: 8px";
310	        }
311	        else if (GetString("Item.ImageStyle") == "cover-border")
312	        {
313	            return "padding: 4px; border: 1px solid #e1e1e1; border-radius: 0px !important";
314	        }
315	        else if (GetString("Item.ImageStyle") == "frame")
316	        {
317	            return "padding: 6px; border: 1px solid #e1e1e1; border-radius: 0px !important";
318	        }
319	        else if (GetString("Item.ImageStyle") == "rounded")
320	        {
321	            return "border-radius: 8px !important";
322	        }
323	        else if (GetString("Item.ImageStyle") == "ball")
324	        {
325	            return "border-radius: 1000px !important";
326	        }
327	        else if (GetString("Item.ImageStyle") == "shadow")
328	        {
329	            return "box-shadow: 0px 2px 2px rgba(0, 0, 0, 0.2)";
330	        }
331	        else
332	        {
333	            return string.Empty;
334	        }
335	    }
336	}