//As the 3 fields can be filled, We need to put them in a string so we can use them later in SearchWithFilter method.
public void CheckFilter(YetAnotherFileFinder yaffFilter)
{
if (!string.IsNullOrEmpty(yaffFilter.txtFileName.Text))
{
filename = yaffFilter.txtFileName.Text;
}
if (yaffFilter.dtpDateModif.Text != " ")
{
date = yaffFilter.dtpDateModif.Value.Date;
}
if (!string.IsNullOrEmpty(yaffFilter.txtAuthor.Text))
{
author = yaffFilter.txtAuthor.Text;
}
if (!string.IsNullOrEmpty(yaffFilter.txtKeyWord.Text))
{
keyWord = yaffFilter.txtKeyWord.Text;
}
}
//Get the files from a selected drive or folder.
public void GetFilesFromSelectedDrive(YetAnotherFileFinder yaffParentForm, string path)
{
yaffParentForm.lvwFiles.BeginUpdate();
DirectoryInfo d = new DirectoryInfo(path); //Assuming Test is your Folder
FileInfo[] Files = d.GetFiles("*.*"); //Getting Text files
DirectoryInfo[] Directories = d.GetDirectories("*");
// Workaround for the progress Bar. it won't work well since we call the same method later on but it shows to the user that the application is doing something.
int listcount = Files.Count();
yaffParentForm.pgbProgess.Value = 0;
yaffParentForm.pgbProgess.Maximum = listcount;
yaffParentForm.pgbProgess.Visible = true;
foreach (FileInfo file in Files)
{
yaffParentForm.pgbProgess.Value += 1;
var lastModified = File.GetLastWriteTime(path + "/" + file.Name);
string user = File.GetAccessControl(path + "/" + file.Name).GetOwner(typeof(System.Security.Principal.NTAccount)).ToString();
ListViewItem lvi = new ListViewItem();
lvi.Text = file.Name;
lvi.SubItems.Add(file.Directory.ToString());
lvi.SubItems.Add(file.Length.ToString() + " octet ");
lvi.SubItems.Add(user.ToString());
lvi.SubItems.Add(lastModified.ToString());
yaffParentForm.lvwFiles.Items.Add(lvi);
}
//If there is a folder in an folder, we get in this foreach to call back this method to get the files.
foreach (DirectoryInfo Directory in Directories)
{
GetFilesFromSelectedDrive(yaffParentForm, path + "/" + Directory.Name);
}
yaffParentForm.pgbProgess.Visible = false;
yaffParentForm.lvwFiles.EndUpdate();
}
// Research with one or more filters.
public void SearchWithFilter(YetAnotherFileFinder yaffFilter)
{
yaffFilter.lvwFiles.BeginUpdate();
// Progress Bar.
int listcount = yaffFilter.lvwFiles.Items.Count;
yaffFilter.pgbProgess.Value = 0;
yaffFilter.pgbProgess.Maximum = listcount;
yaffFilter.pgbProgess.Visible = true;
// Check each file we have in the listview if the file contains a filter.
// If the file is removed, we continue go to the next item.
foreach (ListViewItem file in yaffFilter.lvwFiles.Items)
{
yaffFilter.pgbProgess.Value += 1;
if (filename != null)
{
if (!file.Text.ToUpper().Contains(filename.ToUpper()))
{
yaffFilter.lvwFiles.Items.Remove(file);
continue;
}
}
if (keyWord != null)
{
filePath = file.SubItems[1].Text;
extension = file.Text.Split('.');
switch (extension.Last())
{
case "txt":
// In this case, we put the read file in a string and we check if the string contains the keyword.
StreamReader sr = new StreamReader(filePath + "/" + file.Text);
String txtstring = sr.ReadToEnd();
if (!txtstring.ToUpper().Contains(keyWord.ToUpper()))
{
yaffFilter.lvwFiles.Items.Remove(file);
continue;
}
break;
case "doc":
case "docx":
// In this case, we open the doc or docx file and we read in each paragraph if the word we are looking for is in there.
if (!file.Text.Contains("~"))
{
Document document = new Document();
document.LoadFromFile(filePath + "/" + file.Text);
StringBuilder sbdoc = new StringBuilder();
foreach (Section section in document.Sections)
{
foreach (Paragraph paragraph in section.Paragraphs)
{
sbdoc.AppendLine(paragraph.Text);
}
if (!sbdoc.ToString().ToUpper().Contains(keyWord.ToUpper()))
{
yaffFilter.lvwFiles.Items.Remove(file);
continue;
}
}
}
break;
case "pdf":
//In this case, we open a pdf file. In this file, we read each page and we extract the text. With the extacted text, we append in a string and with this string, we check if it contains the keyword.
StringBuilder text = new StringBuilder();
PdfReader pdfReader = new PdfReader(filePath + "/" + file.Text);
for (int page = 1; page <= pdfReader.NumberOfPages; page++)
{
ITextExtractionStrategy strategy = new SimpleTextExtractionStrategy();
string currentText = PdfTextExtractor.GetTextFromPage(pdfReader, page, strategy);
currentText = Encoding.UTF8.GetString(ASCIIEncoding.Convert(Encoding.Default, Encoding.UTF8, Encoding.Default.GetBytes(currentText)));
text.Append(currentText);
}
pdfReader.Close();
if (!text.ToString().ToUpper().Contains(keyWord.ToUpper()))
{
yaffFilter.lvwFiles.Items.Remove(file);
continue;
}
break;
case "xls":
case "xlsx":
// Using FreeSpire.Doc
Workbook workbook = new Workbook();
workbook.LoadFromFile(filePath + "/" + file.Text);
//Find and highlight excel datas.
int countWordInExcel = 0;
foreach (Worksheet ws in workbook.Worksheets)
{
foreach (CellRange range in ws.FindAllString(keyWord.ToLower(), true, true))
{
countWordInExcel++;
}
}
if (countWordInExcel == 0)
{
yaffFilter.lvwFiles.Items.Remove(file);
continue;
}
break;
default:
yaffFilter.lvwFiles.Items.Remove(file);
continue;
}
}
if (date != null)
{
//Check if the selected date contains (similar) to the date of the metadata.
string path = file.SubItems[1].Text + "/" + file.Text;
string[] dateNoTime = date.ToString().Split(' ');
if (!file.SubItems[4].Text.Contains(dateNoTime[0]))
{
yaffFilter.lvwFiles.Items.Remove(file);
continue;
}
}
if (author != null)
{
//Basic checking of the author if the author from the metadata contains the input author.
if (!file.SubItems[3].Text.ToUpper().Contains(author.ToUpper()))
{
yaffFilter.lvwFiles.Items.Remove(file);
continue;
}
}
}
yaffFilter.pgbProgess.Visible = false;
yaffFilter.lvwFiles.EndUpdate();
}
