command line - Problem with spaces in a filepath - commandline execution in C# -

i building gui commandline program. in txtboxurls[textbox] file paths entered line line. if file path contains spaces program not working properly. program given below.

string[] urls = txtboxurls.text.tostring().split(new char[] { '\n', '\r' });  string s1; string text; foreach (string s in urls) {     if (s.contains(" "))     {         s1 = @"""" + s + @"""";         text += s1 + " ";     }     else     {         text += s + " ";     } }   system.diagnostics.process proc = new system.diagnostics.process(); proc.startinfo.createnowindow = true;   proc.startinfo.filename = @"wk.exe";   proc.startinfo.arguments = text + " " + txtfilename.text;  proc.startinfo.useshellexecute = false;   proc.startinfo.redirectstandardoutput = true;   proc.start();  //get program output string stroutput = proc.standardoutput.readtoend();  //wait process finish proc.waitforexit(); 

for example if file path entered in txtboxurls "c:\vs2008\projects\web2pdf\web2pdf\bin\release\test page.htm", program not work. file path double quotes work in windows command line(i not using gui) nicely. solution.

proc.startinfo.arguments = text + " " + txtboxurls.text + " " + txtfilename.text;  

in line, text contains quoted version of txtboxurls strings. why add them again in unquoted form (+ txtboxurls.text)? if understood code corrently, following should work:

proc.startinfo.arguments = text + " " + txtfilename.text;     

in fact, since txtfilename.text contain spaces, should quote well, sure:

proc.startinfo.arguments = text + " \"" + txtfilename.text + "\"";     

(or, using syntax:)

proc.startinfo.arguments = text + @" """ + txtfilename.text + @"""";