Develop Reference

Adding Newline in string for HTML email body

I'm trying to generate an email with some basic formatting based on labels in a FormView. I'm going the route of Process.Start("mailto:... instead of System.Net.Mail so the email opens up in the default email client to give the user a chance to edit To: CC: etc without making a new form just to handle that. I've got the following code-behind to handle an "Email Form" button for emailing the URL of the webform.
protected void fvBF_ItemCommand(object sender, FormViewCommandEventArgs e)
{
if (e.CommandName == "Email")
{
Label lblBFID = (Label)fvBookingForm.FindControl("lblBFID");
Label lblProjectID = (Label)fvBookingForm.FindControl("lblProjectNum");
Label lblProjectName = (Label)fvBookingForm.FindControl("lblProjectName");
Label lblReleaseName = (Label)fvBookingForm.FindControl("lblReleaseName");
Label lblPMName = (Label)fvBookingForm.FindControl("lblPM");
String strReleaseName = String.IsNullOrEmpty(lblReleaseName.Text) ? "[Description]" : lblReleaseName.Text;
String pmFirst = lblPMName.Text.ToString().Split()[0];
String pmLast = lblPMName.Text.ToString().Split()[1];
String strSubject = "BF " + lblBFID.Text + " - " + lblProjectName.Text + " - Release " + strReleaseName;
String strBody = "A Booking Form for Project #"+ lblProjectID.Text + " - " + lblProjectName.Text +
" - Release " + strReleaseName + " has been created or modified. \n\n" + Request.Url.ToString();
Process.Start("mailto:" + pmFirst + "." + pmLast + "#company.com?subject=" +
HttpUtility.HtmlAttributeEncode(strSubject) + "&body=" +
HttpUtility.HtmlAttributeEncode(strBody).Replace("\n", Environment.NewLine));
}
}
However, when the email is generated, there are no line breaks in the body between the "A Booking Form...." sentence and the URL. I've tried putting Environment.NewLine directly in the string.
...created or modified. " + Environment.Newline + Environment.NewLine + Request.Url.ToString();
Which basically gives me the same results. I've tried replacing the \n with <br /> which doesn't add the line break and for some reason, doesn't display the URL either. I can only guess that the problem has to do with the HtmlAttributeEncode() and getting it to parse the NewLine properly. Is there something I'm missing here?

You might want to try .Replace("\r\n", "<br />") on the body after you have done your encoding of the body.

You should probably use StringBuilder here instead of String.
You can then do the following:
StringBuilder builder = new StringBuilder();
builder.AppendLine(string.Format("A Booking Form for Project #{0} - {1}",lblProjectID.Text, lblProjectName.Text));
builder.AppendLine(string.Format(" - Release {0} has been created or modified.", strReleaseName));
builder.AppendLine();
builder.AppendLine(Request.Url.ToString());
String strBody = builder.ToString();
You can also include (char)10 and (char)13 in your string creation. e.g.:
string.Format("First Line{0}{1}Second Line", (char)10, (char)13);

Model.Message = "my message \n second message";
then add this style to string tag style="white-space: pre-line;"
example <h3 style="white-space: pre-line;">#Model.Message</h3>

Cannot use a leading .. to exit above the top directory - Error

I had a website created using Asp.Net framework 3.5 and And now I'm upgrading it to Visualstudio 2015 (framework 4.6)..
When click on any link it throws an error- Cannot use a leading .. to exit above the top directory
string mslinepath = ResolveUrl("~/" + dt_submenu.Rows[i].ItemArray[1].ToString().Trim());
string pagenamesub = mslinepath + "?Session=" + dt_submenu.Rows[i].ItemArray[2].ToString().Trim(); //"Framework.aspx?name=" +
// nav.InnerHtml += "<li> " + UppercaseFirstEach(dt_submenu.Rows[i].ItemArray[0].ToString().Trim()) + " ";
str += "<li> " + UppercaseFirstEach(dt_submenu.Rows[i].ItemArray[0].ToString().Trim()) + " ";
submenu(dt_submenu.Rows[i].ItemArray[3].ToString().Trim());
// nav.InnerHtml += "</li>";
If anyone knows the solution please let me know.. Thanks in advance

I had this problem and the answer was actually quite simple:
Open your master page and review all your include files, css, js, etc..
Replace:
href="../"
with
href="/"
In other words, the master page must use absolute path and not relative.

How to show multiple images on a secondary tile in windows 10 uwp?

I'm trying to create a secondary tile, which shows pictures in rotation like in the photos app. I have tried something like this:
SecondaryTile tile = GenerateSecondaryTile("NewTile", "SecondaryTile");
await tile.RequestCreateAsync();
var ImageUrl = selectedFileList.ElementAt(0).Path;
string tileXmlString =
"<tile>"
+ "<visual>"
+ "<binding template='TileSmall'>"
+ "<image src='" + selectedFileList.ElementAt(0).Path + "' alt='image'/>"
+ "<image src='" + selectedFileList.ElementAt(1).Path + "' alt='image'/>"
+ "<image src='" + selectedFileList.ElementAt(2).Path + "' alt='image'/>"
+ "<image src='" + selectedFileList.ElementAt(3).Path + "' alt='image'/>"
+ "<image src='" + selectedFileList.ElementAt(4).Path + "' alt='image'/>"
+ "</binding>"
+ "</visual>"
+ "</tile>";
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.LoadXml(tileXmlString);
TileNotification notifyTile = new TileNotification(xmlDoc);
TileUpdateManager.CreateTileUpdaterForSecondaryTile(tile.TileId).Update(notifyTile);
I have tried setting the type as both background and peek but it doesn't give the required result. And also I would not like to use a background task as my app already uses one and I wouldn't want to increase the overhead which might cause the task to fail entirely. I wouldn't mind if the images were limited to 5 like earlier in Windows phone 8.1.
For reference : check this out : Skip to 0:30

This is for Primary Tile, but it should work the same way. Make your own XML Template, then reference your image. Enable notification queue then update the Tile with the TileNotification. Do this up to five times to put five images on the Live Tile stack.
var myStorageFile = await Package.Current.InstalledLocation.GetFileAsync("LiveTileTemplate.xml");
string liveTileTemplate = await FileIO.ReadTextAsync(myStorageFile);
liveTileTemplate = liveTileTemplate.Replace("squareImageSource", FilePathFullPrefix + GetFilePathSquareTile(imageID));
TileUpdateManager.CreateTileUpdaterForApplication().EnableNotificationQueue(true);
TileUpdateManager.CreateTileUpdaterForApplication().Update(new TileNotification(mergedXML));

Sending querystring variable to new popup window

My JavaScript code is this:
var newwindow;
function poptastic(url) {
newwindow = window.open(url, 'name', 'height=400,width=200');
if (window.focus) { newwindow.focus() }
}
And my C# code:
foreach (GridViewRow row in GvComments.Rows)
{
Button btnReplay = (Button)row.FindControl("btnReplay");
string url = "javascript:poptastic('Configuration.aspx?id=" + e.CommandArgument + "')";
btnReplay.Attributes.Add("onclick", url);
}
I think the C# code has problem, because when I use this JavaScript code in a tag it works, but in attribute.add not working.

Try using OnClientClick for this instead:
btnReplay.OnClientClick = String.Format("poptastic(\"Configuration.aspx?id={0}\");return false;", e.CommandArgument);
EDIT
Here's a JavaScript function you can use to open popup windows:
openChildWindowWithDimensions = function(url, width, height, showMenu, canResize, showScrollbars) {
var childWindow = window.open(url, "", "\"width=" + width + ",height=" + height + ",menubar=" + (showMenu ? "1" : "0") + ",scrollbars=" + (showScrollbars ? "1" : "0") + ",resizable=" + (canResize ? "1" : "0") + "\"");
if (childWindow){
childWindow.resizeTo(width, height);
childWindow.focus();
}
}

This problem would be very easy to answer, if you can provide the HTML generated. To find HTML generated go the browser window where you are seeing the rendered page and do a View Source. See How do I check my site's source code
With the code you have provided all the suggestions I can make are already made by #James Johnson
Please see a minor correction to James code
btnReplay.OnClientClick = String.Format("poptastic('Configuration.aspx?id={0}');return false;", e.CommandArgument);
Note: I have changed \" to '

Serving Word document on button click on C# asp.net page

When code is placed onClick event it does not show open save dialog box and no exception is thrown but works fine onLoad event,opens a open save dialog box to save a word file..
string strDocBody;
strDocBody = "<html " + "xmlns:o='urn:schemas-microsoft-com:office:office' " + "xmlns:w='urn:schemas-microsoft-com:office:word'" + "xmlns='http://www.w3.org/TR/REC-html40'>" + "<head>" + "<title>Version and Release Management</title>";
strDocBody = strDocBody + "<!--[if gte mso 9]>" + "<xml>" + "<w:WordDocument>" + "<w:View>Print</w:View>" + "<w:Zoom>100</w:Zoom>" + "<w:DoNotOptimizeForBrowser/>" + "</w:WordDocument>" + "</xml>" + "<![endif]-->";
strDocBody = strDocBody + "<style> #page" + "{size:8.5in 11.0in; mso-first-footer:ff1; mso-footer: f1; mso-header: h1; border:solid navy 2.25pt; padding:24.0pt 24.0pt 24.0pt 24.0pt;" + " margin:0.75in 0.50in 0.75in 0.50in ; " + " mso-header-margin:.5in; " + " mso-footer-margin:.5in; mso-paper-source:0;}" + " div.Section1" + " {page:Section1;}" + "p.MsoFooter, li.MsoFooter, div.MsoFooter{margin:0in; margin-bottom:.0001pt; mso-pagination:widow-orphan; tab-stops:center 3.0in right 6.0in; font-size:12.0pt; font-family:'Arial';}" + "p.MsoHeader, li.MsoHeader, div.MsoHeader {margin:0in; margin-bottom:.0001pt; mso-pagination:widow-orphan; tab-stops:center 3.0in right 6.0in; font-size:12.0pt; font-family:'Arial';}" + "-->" + "</style>" + "</head>";
strDocBody = strDocBody + "<body lang=EN-US style='tab-interval:.5in'>" + "<div class=Section1>" + "<h1>This is my Heading</h1>" + "<h2>This is my Sub Heading</h2>" + "<p style='color:navy;'> This is blue text</p>" + "<p style='font-weight:bold; color:green;'><u> This is green bold underlined text </u></p>" + "<p style='color:red'><I>" + DateTime.Now + "</I></p>" + "<!--[if supportFields]>" + "<div style='mso-element:header' id=h1><p class=MsoHeader><span style='mso-tab-count:4'></span><span style='mso-field-code: PAGE '></span> </p></div>" + "<div style='mso-element:footer' id=f1> " + "<p class=MsoFooter style='border:none;mso-border-bottom-alt:solid windowtext .75pt;padding:0in;mso-padding-alt:0in 0in 1.0pt 0in'><o:p> </o:p></p> " + "Page <span style='mso-field-code: PAGE '><span style='mso-no-proof:yes'>1</span></span> of <span style='mso-field-code: NUMPAGES '></span>" + " <span style='mso-tab-count: 12'> <span style='mso-field-code: DATE '></span> " + " </p></div><![endif]-->" + "</div> </body> </html> ";
//Force this content to be downloaded as a Word document
Response.AddHeader("Content-Type", "application/msword");
Response.AddHeader("Content-disposition", "attachment; filename=TEST.doc");
Response.Charset = "";
Response.Write(strDocBody);

I suppose you are trying to feed the data in strDocBody as a Word file to the user. In order to do that, this data has to be the only thing that web server passes to the browser. That's why it works fine when you put it in your OnLoad event handler. It's not the case when you put it in button click handler.
If you want this behavior on button click, this button has to redirect user to another URL which will send the document data and nothing else.
Create a page specifically for serving document, let it be Document.aspx.
Now, I don't know if you need to perform any additional logic on button click. If not, you can just use LinkButton:
<asp:LinkButton runat="server" ID="docLink" Text="Document"
PostBackUrl="Document.aspx" />
Otherwise, just add redirect call in your onClick handler:
protected void btnButton1_Click(object sender, EventArgs e)
{
// ....
Response.Redirect("Document.aspx");
}

based on my experience, this indeed doesn't work for onClick since the headers has already been sent.

This could be because headers were already posted to the client browser. Try clearing with Response.Clear(), make sure you're not within an Ajax call. Another trick is to open a new page, using a client-side anchor with argument compiled dynamically.
EDIT: of course if you clear your Response, page will be blank after asking the user to download the file. Always keep in mind the stateless synchronous behavior of client-server http communication.