If I have a string saying \"abc.txt\"
, is there a quick way to get a substring that is just \"abc\"
?
I can\'t do an fileName.IndexOf(
String.LastIndexOf would work.
string fileName= "abc.123.txt";
int fileExtPos = fileName.LastIndexOf(".");
if (fileExtPos >= 0 )
fileName= fileName.Substring(0, fileExtPos);
The Path.GetFileNameWithoutExtension method gives you the filename you pass as an argument without the extension, as should be obvious from the name.
if you want to use String operation then you can use the function lastIndexOf( ) which Searches for the last occurrence of a character or substring. Java has numerous string functions.
I know it's an old question and Path.GetFileNameWithoutExtension
is a better and maybe cleaner option. But personally I've added this two methods to my project and wanted to share them. This requires C# 8.0 due to it using ranges and indices.
public static string RemoveExtension(this string file) => ReplaceExtension(file, null);
public static string ReplaceExtension(this string file, string extension)
{
var split = file.Split('.');
if (string.IsNullOrEmpty(extension))
return string.Join(".", split[..^1]);
split[^1] = extension;
return string.Join(".", split);
}
private void btnfilebrowse_Click(object sender, EventArgs e)
{
OpenFileDialog dlg = new OpenFileDialog();
//dlg.ShowDialog();
dlg.Filter = "CSV files (*.csv)|*.csv|XML files (*.xml)|*.xml";
if (dlg.ShowDialog() == DialogResult.OK)
{
string fileName;
fileName = dlg.FileName;
string filecopy;
filecopy = dlg.FileName;
filecopy = Path.GetFileName(filecopy);
string strFilename;
strFilename = filecopy;
strFilename = strFilename.Substring(0, strFilename.LastIndexOf('.'));
//fileName = Path.GetFileName(fileName);
txtfilepath.Text = strFilename;
string filedest = System.IO.Path.GetFullPath(".\\Excels_Read\\'"+txtfilepath.Text+"'.csv");
// filedest = "C:\\Users\\adm\\Documents\\Visual Studio 2010\\Projects\\ConvertFile\\ConvertFile\\Excels_Read";
FileInfo file = new FileInfo(fileName);
file.CopyTo(filedest);
// File.Copy(fileName, filedest,true);
MessageBox.Show("Import Done!!!");
}
}
I used the below, less code
string fileName = "C:\file.docx";
MessageBox.Show(Path.Combine(Path.GetDirectoryName(fileName),Path.GetFileNameWithoutExtension(fileName)));
Output will be
C:\file