Reputation: 41
I am totally new to visual C#. Whilst I can sort of manage console apps, I easily get lost when it comes to coding forms.
I am currently making an "app launcher" which reads a text file line by line. Each line is a path to a useful program somewhere else on my pc. A link label is automatically made for each path (i.e. each line) in the text file.
I would like the .Text property of the link label to be an abbreviated form of the path (i.e. just the file name, not the whole path). I have found out how to shorten the string in this way (so far so good !)
However, I would also like to store the full path somewhere - as this is what my linklabel will need to link to. In Javascript I could pretty much just add this property to linklabel like so: mylinklabel.fullpath=line; (where line is the current line as we read through the text file, and fullpath is my "custom" property that I would like to try and add to the link label. I guess it needs declaring, but I am not sure how.
Below is the part of my code which creates the form, reads the text file line by line and creates a link label for the path found on each line:
private void Form1_Load(object sender, EventArgs e) //on form load
{
//System.Console.WriteLine("hello!");
int counter = 0;
string line;
string filenameNoExtension;
string myfile = @"c:\\users\jim\desktop\file.txt";
//string filenameNoExtension = Path.GetFileNameWithoutExtension(myfile);
// Read the file and display it line by line.
System.IO.StreamReader file = new System.IO.StreamReader(myfile);
while ((line = file.ReadLine()) != null)
{
//MessageBox.Show(line); //check whats on each line
LinkLabel mylinklabel = new LinkLabel();
filenameNoExtension = Path.GetFileNameWithoutExtension(line); //shortens the path to just the file name without extension
mylinklabel.Text = filenameNoExtension;
//string fullpath=line; //doesn't work
//mylinklabel.fullpath=line; //doesn't work
mylinklabel.Text = filenameNoExtension; //displays the shortened path
this.Controls.Add(mylinklabel);
mylinklabel.Location = new Point(0, 30 + counter * 30);
mylinklabel.AutoSize = true;
mylinklabel.VisitedLinkColor = System.Drawing.Color.White;
mylinklabel.LinkColor = System.Drawing.Color.White;
mylinklabel.Click += new System.EventHandler(LinkClick);
counter++;
}
file.Close();
}
So, how can I store a full path as a string inside the linklabel for use in my onclick function later on?
Many thanks in advance
Jim
Upvotes: 1
Views: 889
Reputation: 2613
Reading from a text file isn't pretty good. You could read from a xml file, then it would be very simple to create the linklabels and other stuff. A xml sample:
<Programs>
<Program Name="Calculator" Path="calc">
<Program Name="Notepad" Path="C:\blabla">
</Programs>
Then you could make a name variable, and a path variable and load the values from the file. But if your a beginner, then a txt file will also do, but it's a pain to load each line's values from the file.
Upvotes: 0
Reputation: 6637
Store full path in LinkLabel
Tag
Property, you could get the full path like
string full path = myLinkLabel.Tag.ToString();
Hope this help.
Upvotes: 0
Reputation: 60115
Use Tag
property, then it can be retrieved by casting first parameter of LinkClick
(object sender
) to LinkLabel
:
mylinklabel.Tag = line;
in LinkClick
:
((LinkLabel)sender).Tag
Upvotes: 5