I have this project where you can drag and drop files into it and it adds all the items to a listbox.
Then it prompts you with MessageBox asking if you would like to see the extension.
When you press "Yes" it should prompt you with a MessageBox telling you what file extension each and every file has, looping through them one by one so 1 messagebox per item saying i.e ".txt" ".exe" "pdf" etc.
but for some reason it's not showing any extensions what so ever just a blank MessageBox.
using System;
using System.IO;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace dragndrop
{
public partial class frmMain : Form
{
public frmMain()
{
AllowDrop = true;
InitializeComponent();
}
private void frmMain_DragEnter(object sender, DragEventArgs e)
{
if (e.Data.GetDataPresent(DataFormats.FileDrop))
e.Effect = DragDropEffects.Copy;
}
private void frmMain_DragDrop(object sender, DragEventArgs e)
{
string[] files = (string[])e.Data.GetData(DataFormats.FileDrop);
lBox.Items.AddRange(files);
DialogResult dr = MessageBox.Show("Would you like to see the extension?", "Option", MessageBoxButtons.YesNoCancel);
if(dr == DialogResult.Yes)
{
string text = "";
foreach (var item in lBox.Items)
{
string ext = Path.GetExtension(text);
MessageBox.Show(ext);
}
}
else
{
}
}
}
}
It should be item instead of text ,
foreach (var item in lBox.Items)
{
string ext = Path.GetExtension(item);
MessageBox.Show(ext);
}
Related
I am creating a clock for clocking into a business. Here is my code:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.IO;
namespace WindowsFormsApplication2
{
public partial class Form1 : Form
{
String Code;
String Name;
String InOut;
Boolean Luke = true;
String csvPath = "C:/users/luke/documents/C#/csvProject.csv";
StringBuilder Header = new StringBuilder();
StringBuilder csvData = new StringBuilder();
public Form1()
{
InitializeComponent();
FormBorderStyle = FormBorderStyle.None;
WindowState = FormWindowState.Maximized;
TopMost = true;
Header.AppendLine("Timestamp, Name");
File.AppendAllText(csvPath, Header.ToString());
textBox1.Font = new Font("Arial", 30, FontStyle.Bold);
}
private void button_Click(object sender, EventArgs e)
{
Button button = (Button)sender;
Code = Code + button.Text;
textBox1.Text = Code;
}
private void Form1_KeyDown(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.Escape)
{
FormBorderStyle = FormBorderStyle.Sizable;
WindowState = FormWindowState.Normal;
TopMost = false;
}
}
private void button13_Click(object sender, EventArgs e)
{
//clear
Code = null;
textBox1.Text = Code;
}
private void button10_Click(object sender, EventArgs e)
{
//in or out
DateTime timeStamp = DateTime.Now;
if (Code == "123")
{
Name = "Luke";
}
Button button = (Button)sender;
csvData.AppendLine(timeStamp + "," + Name + "," + button.Text);
File.AppendAllText(csvPath, csvData.ToString());
Code = null;
textBox1.Text = Code;
}
private void button14_Click(object sender, EventArgs e)
{
}
}
}
My layout consists of a number pad, in button, and out button. When the user presses the in button after they enter their code, the program should write in the CSV file: Timestamp, Name, In. When I tested the code by clocking in, the program writes one row correctly. When I clock in and then clock out, it creates two rows of me clocking in and one row of me clocking out. I was wondering if anyone could help me find what is going wrong in the code. Thanks.
You need to empty csvData after writing it to the file.
im kinda new to programming and As university project,i have to write a program which changes a file info like a virus and then undo the changes just like anti virus.
i wrote the code for changing attribute on read only,But what about Hidden or system file ?
and what is the way for undoing it !
where im going wrong in coding ??
Here is my main form code :
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace WindowsFormsApplication6
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
OpenFileDialog fDialog;
void button1_Click(object sender, EventArgs e) // Browse button
{
fDialog = new OpenFileDialog();
fDialog.Title = "Open a Text File";
fDialog.Filter = "TXT Files|*.txt|doc Files|*.doc";
fDialog.InitialDirectory = #"C:\";
if (fDialog.ShowDialog() == DialogResult.OK)
{
MessageBox.Show(fDialog.FileName.ToString());
}
textBox1.Text = fDialog.FileName;
fDialog.AddExtension = true;
fDialog.CheckFileExists = true;
fDialog.CheckPathExists = true;
}
private void textBox1_TextChanged(object sender, EventArgs e)//the path showing text box
{
}
private void button2_Click(object sender, EventArgs e)//read-only button
{
fDialog.ReadOnlyChecked = true;
}
private void button3_Click(object sender, EventArgs e) //Hidden button
{
}
}
}
Am working in a project where I should give a crystal reports RPT file as input and get the properties of that report.
I am facing a problem in loading the report itself so I have used isLoaded() function to check whether the report is loaded or not.
I have used the following code:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Web;
using CrystalDecisions.CrystalReports.Engine;
using CrystalDecisions.Shared;
namespace sampleretreival
{
public partial class Form1 : Form
{
public string flName;
public Form1()
{
InitializeComponent();
Retrieve.Enabled = false;
}
private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
{
if (lstFiles.SelectedItems.Count > 0)
{
Retrieve.Enabled = true;
}
else
{
Retrieve.Enabled = false;
}
}
private void Browse_Click(object sender, EventArgs e)
{
openFileDialog1 = new OpenFileDialog();
openFileDialog1.Multiselect = false;
openFileDialog1.Filter = "Crystal Report Files | *.rpt";
openFileDialog1.ShowDialog();
flName = openFileDialog1.FileName;
if (flName.Length != 0)
{
lstFiles.Items.Insert(0, flName);
Retrieve.Enabled = true;
}
else
{
MessageBox.Show("Please select the crystal report files for analysis.", "SAMPLE", MessageBoxButtons.OK, MessageBoxIcon.Information);
Browse.Focus();
}
}
private void Retrieve_Click(object sender, EventArgs e)
{
int a=1;
ReportDocument rpt = new ReportDocument();
rpt.Load(flName);
int count = 5;
if (rpt.IsLoaded)
{
MessageBox.Show(count.ToString());
}
else
{
MessageBox.Show(a.ToString());
}
}
}
}
After compiling, I clicked the Browse button to select the report from the disk but when I click Retrieve button, the program keeps on running. I am not getting any output or any error.
Trying to put icons in ObjectListview, here's my piece of code where icon should have been put:
objectListView1.SmallImageList = imageList1;
deleteColumn.IsEditable = true;
deleteColumn.ImageGetter = delegate
{
return 0;
};
deleteColumn.AspectGetter = delegate
{
return "Delete";
};
imageList1 already have an image, this code should have put an icon next to "Delete", but it did not appear at all, looked through cookbooks and Google and I still have no idea. Can anyone help me?
this is the full form code in case needed:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Security.Cryptography;
using System.IO;
namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
objectListView1.AllowDrop = true;
objectListView1.DragEnter += new DragEventHandler(objectListView1_DragEnter);
objectListView1.DragDrop += new DragEventHandler(objectListView1_DragDrop);
objectListView1.CellEditActivation = BrightIdeasSoftware.ObjectListView.CellEditActivateMode.SingleClick;
objectListView1.CellEditStarting += deleteItems;
objectListView1.SmallImageList = imageList1;
deleteColumn.IsEditable = true;
deleteColumn.ImageGetter = delegate
{
return 0;
};
deleteColumn.AspectGetter = delegate
{
return "Delete";
};
}
private void objectListView1_DragEnter(object sender, DragEventArgs e)
{
if (e.Data.GetDataPresent(DataFormats.FileDrop))
{
e.Effect = DragDropEffects.Copy;
}
else
{
e.Effect = DragDropEffects.None;
}
}
private void objectListView1_DragDrop(object sender, DragEventArgs e)
{
if (e.Data.GetDataPresent(DataFormats.FileDrop, true))
{
string[] droppedFiles = (string[]) e.Data.GetData(DataFormats.FileDrop);
foreach (string path in droppedFiles)
{
if (File.Exists(path))
{
FileObject fo = new FileObject(path, "added later");
objectListView1.AddObject(fo);
}
}
}
}
private void deleteItems(object sender, BrightIdeasSoftware.CellEditEventArgs e)
{
if(e.Column == deleteColumn)
{
e.Cancel = true;
objectListView1.RemoveObject(e.RowObject);
}
}
private void Form1_Load(object sender, EventArgs e)
{
}
}
}
In order for images to appear next to the text in a column, you must:
Connect the ObjectListView to an ImageList (using the SmallImageList property);
Install an ImageGetter delegate for the column that must show the images;
Make sure that there are actually images in the ImageList.
With this done, images will appear (I just tested this).
There is one catch, though. From your question, I suspect that the "Delete" column may not be the first column in the ObjectListView. The above steps only allow you to show an image in the very first column. For subsequent columns, you will have to set the ShowImagesOnSubItems property to True. Could that be it?
I have this Code in Form1. Im doing a search for xml files. When i find them im using listBox1 selected index changed event and i want to do that when i select item in the lixtBox it will consider it as a file will parse it content and show me the parsed content.
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Xml;
using System.Xml.Linq;
using System.Xml.XPath;
using System.IO;
using System.Collections;
namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
DirectoryInfo dirinf = new DirectoryInfo(#"C:\");
List<FileSystemInfo> fsi = new List<FileSystemInfo>();
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
backgroundWorker1.RunWorkerAsync();
button1.Enabled = false;
}
private void ParseAndDisplayXml(string filename)
{
XDocument document = XDocument.Load(filename);
var list = document.Root.Elements("Message")
.Select(
e => new
{
Date = e.Attribute("Date").Value.ToString(),
Time = e.Attribute("Time").Value.ToString(),
Text = e.Element("Text").Value.ToString()
}
);
string result="";
foreach (var item in list)
{
result += string.Format("Date--{0},Time--{1},Text--{2}", item.Date, item.Time, item.Text + Environment.NewLine);
}
}
public void Search(string strExtension,
DirectoryInfo di,
List<FileSystemInfo> pResult)
{
try
{
foreach (FileInfo fi in di.GetFiles())
{
if (InvokeRequired)
{
BeginInvoke(new Action(() => label2.Text = fi.Name));
}
if (fi.Name == "MessageLog.xsl")
{
foreach (FileInfo fii in di.GetFiles())
{
if (fii.Extension == strExtension)
pResult.Add(fii);
}
if (InvokeRequired)
{
BeginInvoke(new Action(() => label4.Text = pResult.Count.ToString() + Environment.NewLine));
}
}
}
foreach (DirectoryInfo diChild in di.GetDirectories())
Search(strExtension, diChild, pResult);
}
catch (Exception e)
{
}
}
private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
{
Search(".xml", dirinf, fsi);
backgroundWorker1.ReportProgress(100);
}
private void backgroundWorker1_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
{
for (int i = 0; i < fsi.Count; i++)
{
listBox1.Items.Add(fsi[i].Name + Environment.NewLine);
}
}
private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
{
label2.Text = listBox1.SelectedItem.ToString();
}
}
}
Im starting the search from C:\
Then when the search so over completed im adding the items it found to the listBox1.
For example now in my listBox1 i have 4 files:
danny.xml
adi.xml
sharon.xml
yoval.xml
In the selectedindexchanged i added option so the user can move between the items.
Now what i want to do is when the user select some index for example index [1] in the listBox and only if he clicked enter with the keyboard or clicked with the mouse left click it will call/use the function: ParseAndDisplayXML.
Then it will parse the selected index wich need to be translated to a file so in the backgroundWorker1_RunWorkerCompleted event i madding the files to the listBox as items but only with the names of the files. If i did .FullName instead .Name it was adding the files names with the directories too.
So i need somehow to get the FullName of the files in the completed event i think then when selecting one of the FullName items to parse it and display it in the listBox.
The parse function should take the specific content from the xml files and it worked i checked this function before alone.
The problem is how do i make that the user will select the index by click/key enter and how to parse and display it ?
When you add something to a listbox.
It expects an object, and sets the text to object.ToString()
e.g.
MyListBox.Add(100);
Would box 100 and display "100"
Couldn't find if FileSystemInfo's ToString() method has been overridden but first thing to try would be
private void backgroundWorker1_RunWorkerCompleted(object sender,
RunWorkerCompletedEventArgs e)
{
// newline is unnecesary and you should be using foreach
foreach(FileSystemInfo f in fsi)
{
listBox1.Items.Add(f);
}
}
// display full name of file
private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
{
label2.Text = ((FileSystemInfo)listBox1.SelectedItem).Fullname;
}
If FileSystemInfo.ToString() doesn't return Name, there are a few ways to deal with that.
If you don't want to hold on to the FileSystemInfo instances, we can deal with that too.