I am trying to format the output of a query in a WebMatrix 2 CSHTML file. This is the code I am using:
#foreach(var row in db.Query(selectQueryString))
{
#row.Firstname; + " " + #row.lastname; + " " + #row.Entry;
}
I am getting this error:
"CS0201: Only assignment, call, increment, decrement, and new object expressions can be used as a statement"
The first issue is that the semicolons could be confusing to Razor, and they are only confusing matters. So change the line in the brackets to
<text>#row.Firstname #row.lastname #row.Entry</text>
And see if that works. The < text > tags tells Razor to output this directly as HTML and not use it as code. You don't need the + " " because once you're putting out HTML, the spaces come automatically.
Related
Everytime I add CharW(34) to a string it adds two "" symbols
Example:
text = "Hello," + Char(34) + "World" + Char(34)
Result of text
"Hello,""World"""
How can I just add one " symbol?
e.g Ideal result would be:
"Hello,"World""
I have also tried:
text = "Hello,""World"""
But I still get the double " Symbols
Furthermore. Adding a CharW(39), which is a ' symbol only produces one?
e.g
text = "Hello," + Char(39) + "World" + Char(39)
Result
"Hello,'World'"
Why is this only behaving abnormally for double quotes? and how can I add just ONE rather than two?
Assuming you meant the old Chr function rather than Char (which is a type).It does not add two quotation mark characters. It only adds one. If you output the string to the screen or a file, you would see that it only adds one. The Visual Studio debugger, however, displays the VB-string-literal representation of the value rather than the raw string value itself. Since the way to escape a double-quote character in a string is to put two in a row, that's the way it displays it. For instance, your code:
text = "Hello," + Chr(34) + "World" + Chr(34)
Can also be written more simply as:
text = "Hello,""World"""
So, the debugger is just displaying it in that VB syntax, just as in C#, the debugger would display the value as "Hello, \"World\"".
The text doesn't really have double quotes in it. The debugger is quoting the text so that it appears as it would in your source code. If you were to do this same thing in C#, embedded new lines are displayed using it's source code formatting.
Instead of using the debugger's output, you can add a statement in your source to display the value in the debug window.
Diagnostics.Debug.WriteLine(text)
This should only show the single set of quotes.
Well it's Very eazy
just use this : ControlChars.Quote
"Hello, " & ControlChars.Quote & "World" & ControlChars.Quote
Have a relatively simple request.
I wish to pad left a string with spaces in an HTML page using VB on asp.net
For me the most obvious way to do it is
Response.Write(qty.PadLeft(5, " ") + " x " + part_number)
but as HTML does not render multiple spaces, this does not work
my workaround is
Response.Write(qty.PadLeft(5, "0") + " x " + part_number)
which pads the number with zero's but looks fairly unappealing on the website.
Any suggestions?
Thanks
Update:
Based on replies so far I have tried
"100".PadLeft(5, " ")
but this outputs &&100
OK, I solved it by doing this
rep = string.concat(Enumerable.Repeat(" ", 5-qty.Length))
Response.Write(rep + qty+ " x " + part_number)
Not the best but works.
There's & nbsp; or setting or the css (with white-space) to see spaces. If you want to align information, you might want to also look at having a fixed font.
I'm having an unexpected problem which I'm hoping one of you can help me with.
I have an ASP.NET Web API with a number of end points, one of which takes user input, received as JSON, and converts it into an order object which is written to a file in .CSV format. The following is a small snippet of the full code as an example.
using (StreamWriter writer = new StreamWriter(file))
{
writer.Write(escape + order.Notes + escape + delim);
writer.Write(escape + order.Reference1 + escape + delim);
writer.Write(escape + order.Reference2 + escape + delim);
writer.WriteLine();
writer.Flush();
}
The problem I am having is that some users are inclined to add line breaks in
certain fields, and this is causing havoc with my order file. In order to remove
these new line characters, I have tried both of the following methods.
writer.Write(escape + product.Notes.Replace("\n", " ") + escape + delim);
writer.Write(escape + product.Notes.Replace(System.Environment.NewLine, " ") + escape + delim);
However, it seems that, rather than just remove the new line character and carry on writing the rest of the fields, when a new line is encountered, nothing else gets written.
Either everything else gets replace with the " " or nothing else is being written at all, but I'm not sure which.
If I remove the .Replace() the whole file is written again but with extra line breaks.
I hope somebody has experienced this one and knows the answer!
I am using html
strBody.Append("<span style=\"font-family:Arial;font-size:10pt\"> Hi " + Name + ",<br/><br/> Welcome! <br/><br/>");
strBody.Append("<tr><td style=\"font-weight:bold\">");
strBody.Append("documents for reference are shared in the Account Induction Portal ");
strBody.Append("</td><td>");
strBody.Append("Visit W3Schools<br/><br/>");
strBody.Append("</td><td>");
strBody.Append("</td></tr>");
strBody.Append("<tbody/></table><br/>");
Here href got error i cant include that in string bulider append without error.Pls help on this
you have two sets of parenthesis you must small quote for the url!
strBody.Append("<a href='http://www.w3schools.com'>Visit W3Schools</a><br/><br/>");
or escape like
strBody.Append("Visit W3Schools<br/><br/>"
You don't escape the quotes (") in the following line:
// Replace this
strBody.Append("Visit W3Schools<br/><br/>");
// with either this:
strBody.Append("Visit W3Schools<br/><br/>");
// or use single quotes inside the string:
strBody.Append("<a href='http://www.w3schools.com'>Visit W3Schools</a><br/><br/>");
I have a server side operation manually generating some json response. Within the json is a property that contains a string value.
What is the easiest way to escape the string value contained within this json result?
So this
string result = "{ \"propName\" : '" + (" *** \\\"Hello World!\\\" ***") + "' }";
would turn into
string result = "{ \"propName\" : '" + SomeJsonConverter.EscapeString(" *** \\\"Hello World!\\\" ***") + "' }";
and result in the following json
{ \"propName\" : '*** \"Hello World!\" ***' }
First of all I find the idea to implement serialization manually not good. You should to do this mostla only for studying purpose or of you have other very important reason why you can not use standard .NET classes (for example use have to use .NET 1.0-3.0 and not higher).
Now back to your code. The results which you produce currently are not in JSON format. You should place the property name and property value in double quotas:
{ "propName" : "*** \"Hello World!\" ***" }
How you can read on http://www.json.org/ the double quota in not only character which must be escaped. The backslash character also must be escaped. You cen verify you JSON results on http://www.jsonlint.com/.
If you implement deserialization also manually you should know that there are more characters which can be escaped abbitionally to \" and \\: \/, \b, \f, \n, \r, \t and \u which follows to 4 hexadecimal digits.
How I wrote at the beginning of my answer, it is better to use standard .NET classes like DataContractJsonSerializer or JavaScriptSerializer. If you have to use .NET 2.0 and not higher you can use Json.NET.
You may try something like:
string.replace(/(\\|")/g, "\\$1").replace("\n", "\\n").replace("\r", "\\r");