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I am using VSTS 2008 + C# + .Net 2.0. When executing the following statement, there is FormatException thrown from String.Format statement, any ideas what is wrong?
Here is where to get the template.html I am using. I want to format this part m={0} in template.html.
string template = String.Empty; using (StreamReader textFile = new StreamReader("template.html")) { template = textFile.ReadToEnd(); String.Format(template, "video.wmv"); } http://www.mediafire.com/download.php?u4myvhbmmzg
EDIT 1:
Here is the content for my template.html,
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <!-- saved from url=(0014)about:internet --> <head> <title>Silverlight Project Test Page </title> <style type="text/css"> html, body { height: 100%; overflow: auto; } body { padding: 0; margin: 0; } #silverlightControlHost { height: 100%; } </style> <script type="text/javascript"> function onSilverlightError(sender, args) { var appSource = ""; if (sender != null && sender != 0) { appSource = sender.getHost().Source; } var errorType = args.ErrorType; var iErrorCode = args.ErrorCode; var errMsg = "Unhandled Error in Silverlight 2 Application " + appSource + "\n" ; errMsg += "Code: "+ iErrorCode + " \n"; errMsg += "Category: " + errorType + " \n"; errMsg += "Message: " + args.ErrorMessage + " \n"; if (errorType == "ParserError") { errMsg += "File: " + args.xamlFile + " \n"; errMsg += "Line: " + args.lineNumber + " \n"; errMsg += "Position: " + args.charPosition + " \n"; } else if (errorType == "RuntimeError") { if (args.lineNumber != 0) { errMsg += "Line: " + args.lineNumber + " \n"; errMsg += "Position: " + args.charPosition + " \n"; } errMsg += "MethodName: " + args.methodName + " \n"; } throw new Error(errMsg); } </script> </head> <body> <!-- Runtime errors from Silverlight will be displayed here. This will contain debugging information and should be removed or hidden when debugging is completed --> <div id='errorLocation' style="font-size: small;color: Gray;"></div> <div id="silverlightControlHost"> <object data="data:application/x-silverlight," type="application/x-silverlight-2" width="500" height="240"> <param name="source" value="ClientBin/VideoPlayer.xap"/> <param name="onerror" value="onSilverlightError" /> <param name="background" value="white" /> <param name="initParams" value="cc=true,markers=true,m={0}" /> <a href="http://go.microsoft.com/fwlink/?LinkID=115261" style="text-decoration: none;"> <img src="http://go.microsoft.com/fwlink/?LinkId=108181" alt="Get Microsoft Silverlight" style="border-style: none"/> </a> </object> <iframe style='visibility:hidden;height:0;width:0;border:0px'></iframe> </div> </body> </html> thanks in avdance, George
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The %s operator is put where the string is to be specified. The number of values you want to append to a string should be equivalent to the number specified in parentheses after the % operator at the end of the string value.
%s in the format string is replaced with the content of language . %s is a format specifier. Similarly, %x is replaced with the hexadecimal value of number in String. format("Number: %x", number) .
At a guess, the html contains javascript or another source of braces ({ and }) which would all need doubling (to {{ and }}) to be usable with string.Format. I expect a different (more obvious) token may be in order, i.e. %%FILENAME%%. Then use either regex or string.Replace.
If you have a single tag, string.Replace is fine; if you have lots, there are tricks with regex and MatchEvaluator that may be helpful - like so but with a different regex pattern.
Update after the example html added: I would definitely use a different token; at the most basic level:
<param name="initParams" value="cc=true,markers=true,m=%%FILENAME%%" /> and
template = template.Replace("%%FILENAME%%", "video.wmv"); Your template contains { and } characters which need to be escaped, otherwise they confuse String.Format. Escape them using {{ and }}. Alternatively, use a different mechanism such as String.Replace.
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