maybe better make your own implementation and derive from FileDialog (OpenFileDialog is sealed), with possibility to add regex as Filters
Filtering (many) filetypes in OpenFileDialog.Filter
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30-07-2022 - |
Domanda
I am currently creating an OpenFileDialog
, where I have created some filters for importing some files.
Currently my filters are:
var ofd = new OpenFileDialog();
ofd.Filter = "Supported files|*.dat;*.xlsx;*.csv;*.txt
The user should also be able to import any file with an numeric extension like:
.1337, .42, .007
I am aware it is possible to create a filter like below to match [00000, 99999]
var sb = new StringBuilder("Numeric Files |");
for (int i = 0; i < 99999; i++)
{
sb.Append("*." + (i + ";").PadLeft(5, '0'));
}
ofd.Filter = sb.ToString();
But this results in an awfully slow pattern matching for each possibility, and I feel there should be some other way.
I have also considered accepting all files in the dialog, and filtering the extensions out afterwards, but I would like to know if there is another way.
The question is now:
Is there a way to use a regular expression or the like to match the above?
Hope you can help :)
Soluzione
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