c# - How can I check if the path entered by user is valid or not? -

c# - How can I check if the path entered by user is valid or not? -

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check whether path valid 9 answers

i have found code while busy searching answer!

private void btnopenfile_click(object sender, eventargs e) { openfiledialog savefiledialogbrowse = new openfiledialog(); savefiledialogbrowse.filter = "pcap file|*.pcap"; savefiledialogbrowse.title = "save pcap file"; savefiledialogbrowse.showdialog(); var pcapfile = savefiledialogbrowse.filename; //do whatever selected filename if (pcapfile != "") { fileinfo fileinfo = new fileinfo(pcapfile); txtfilepath.text = fileinfo.fullname; } }

there no easy way.

you can utilize file.exists check file existence on path, alter can still happen before execution of next line. best alternative combine file.exists try-catch grab possible exceptions.

private void btnopenfile_click(object sender, eventargs e) { openfiledialog savefiledialogbrowse = new openfiledialog(); savefiledialogbrowse.filter = "pcap file|*.pcap"; savefiledialogbrowse.title = "save pcap file"; savefiledialogbrowse.showdialog(); var pcapfile = savefiledialogbrowse.filename; //do whatever selected filename seek { if (file.exists(pcapfile)) { fileinfo fileinfo = new fileinfo(pcapfile); txtfilepath.text = fileinfo.fullname; } } grab (filenotfoundexception filenotfoundexception) { //log , handle } grab (exception ex) { //log , handle } }

c#