Re: How to call function after timer - C# Discussion Boards

Re: C# NET. Framework program

5-Dec-20 1:41

Then you go back to your teacher and you ask for help - he knows you had Covid-19, so he knows you weren't just sitting around playing video games during a lockdown when you should have been studying.

But us just giving you the code doesn't help you at all in the long term, it makes it a lot worse!

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OriginalGriff5-Dec-20 1:37

How to capture and print panel content into .pdf

5-Dec-20 1:37

Then it's time you started to learn.
This is a trivial task to get you thinking about the tools available to you, and how to use them to solve a problem; together with some very simple coding you need to do.

If I write the code then you skip all that - so the next (more complex) task is commensurately harder for you to do, and that process continues until you fail the course.

Read your notes, read the question, and give it a try. This may help: How to Write Code to Solve a Problem, A Beginner's Guide[^]

RedPandinus3-Dec-20 11:25

RedPandinus

3-Dec-20 11:25

Hi Everyone,

I added a panel which I will use it as signature drawing pad. I also use itextsharp for creating .pdf function. My question is how can I capture that drawing at panel and print it on .pdf document?

Below is panel code side. I created a button to make .pdf but I don't know how to code that button event.

private void panel1_MouseDown(object sender, MouseEventArgs e)
        {
            LastX = e.X;
            LastY = e.Y;
        }

        private void panel1_Paint(object sender, PaintEventArgs e)
        {
            Graphics G = panel1.CreateGraphics();
            G.DrawLine(Pens.Black, PointX, PointY, LastX, LastY);
            LastX = PointX;
            LastY = PointY;
        }

        private void panel1_MouseMove(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left)
            {
                PointX = e.X;
                PointY = e.Y;
                panel1_Paint(this, null);

Re: How to capture and print panel content into .pdf

Sandeep Mewara3-Dec-20 17:33

Sandeep Mewara

3-Dec-20 17:33

Please don't cross post: How to capture and print panel content into .pdf

Have patience and someone will respond. It's not good practice to post in multiple boards, you should pick one most appropriate and use it. Thanks.

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Re: How to capture and print panel content into .pdf

RedPandinus4-Dec-20 2:01

RedPandinus

4-Dec-20 2:01

Sorry Sandeep, I deleted another post. Thank you.

How to call function after timer

Member 141922163-Dec-20 8:07

3-Dec-20 8:07

Good evening everyone, I have a problem that crushes me. With my app developed in C #, everything works very except that I'm stuck somewhere and I try everything it does not work. Can someone show how to "call a function after the minute's number"? Using timer

OriginalGriff3-Dec-20 8:20

3-Dec-20 8:20

Create a Timer instance, set it's Interval property to 60 * 1000 (it ticks in 1/1000th of a second intervals), and add a handler to the Tick event before you start the timer.
After one minute you will get a Tick event and your handler method will be exectuted.
A minute later the same will happen again.

Member 141922163-Dec-20 8:25

3-Dec-20 8:25

Can you help me with the code ? Please

OriginalGriff3-Dec-20 9:01

3-Dec-20 9:01

What part of it can't you do on your own?
You know how to create an instance of a Timer, I assume?

Member 141922163-Dec-20 9:04

3-Dec-20 9:04

I'know how to create

OriginalGriff3-Dec-20 9:08

3-Dec-20 9:08

Good. So do that.
And you know how to set a property of an instance, yes?

Member 141922163-Dec-20 9:10

3-Dec-20 9:10

Yes

OriginalGriff3-Dec-20 9:25

3-Dec-20 9:25

Excellent!
And you know how to add an event handler, I'm sure?

Member 141922163-Dec-20 9:45

3-Dec-20 9:45

No sir

OriginalGriff3-Dec-20 10:02

3-Dec-20 10:02

Open Visual Studio.
Immediately after you set the Interval property, type the name of your Timer instance, followed by ".Tick":

myTimer.Interval = 60 * 1000;
myTimer.Tick

Press the Tab key. Intellisense will fill in the rest of the line, and create a Tick event handler for you, containing just a "not implemented" exception for you to replace with your code.

You've done that before, haven't you? It's pretty basic stuff!

Member 141922163-Dec-20 22:06

3-Dec-20 22:06

Thank you

OriginalGriff3-Dec-20 22:20

Take ownership from trustedinstaller to administrator c# or vb

3-Dec-20 22:20

You're welcome!

Member 123929042-Dec-20 10:49

Member 12392904

2-Dec-20 10:49

how will I take ownership in registry subkey... from other owner(TrustedInstaller) to Administrator's.

Re: Take ownership from trustedinstaller to administrator c# or vb

Dave Kreskowiak2-Dec-20 18:21

Dave Kreskowiak

2-Dec-20 18:21

Google for "C# take ownership of registry key" for examples and start reading.

Asking questions is a skill
CodeProject Forum Guidelines
Google: C# How to debug code
Seriously, go read these articles.

Dave Kreskowiak

Combine Array Values in C#

Member 130810652-Dec-20 3:51

Member 13081065

2-Dec-20 3:51

I have an array of string which is 

    string[] myarr = new[] { "a", "b", "c" };

Can you please help me how to get this result?

    a
    ab
    abc

I tried this one but I just don't know how to get the value from the array and add it on my list 

    string[] myarray = new string[] { "a", "b", "c" };
                List<string> resultarray = new List<string>();

                int i, j;
                for (i = 0; i <= myarray.Length; i++)
                {
                    for (j = i; j <= i; j++)
                    {

                        


                    }
                }

Richard MacCutchan2-Dec-20 4:02

Richard MacCutchan

2-Dec-20 4:02

A simple loop: print the first character, print the first and the second, ...

Richard Deeming2-Dec-20 4:08

Richard Deeming

2-Dec-20 4:08

Member 13081065 wrote:
C#
for (j = i; j <= i; j++)

What values do you think j is going to take within that loop?

Try debugging your code and stepping through the loops. Do the values you see in the debugger match what you were expecting?

NB: You don't need an inner loop at all. String.Join[^] has an overload which lets you specify the range of elements from the array that you want to join. For example:

string[] input = { "0", "1", "2", "3" };
string output = string.Join(string.Empty, input, 0, 3);
// Output === "012"

"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer

OriginalGriff2-Dec-20 4:31

2-Dec-20 4:31

You get a value from an array by using an index - a numeric value that ruins from 0 to (N - 1), where N is the number of elements in the array. So valid indexes for your myarr array woudl be 0, 1, and 2.
If you want "a", then you use myarr[0]
If you want "b", then you use myarr[1]
If you want "c", then you use myarr[2]

That index value can be in a variable:

int index = 2;
Console.WriteLine(myarr[index]);

Would print "c" for example.

Think about what your tutor wants you do to, and work out how you would do it manually - that may help you work out what your code needs to do!

Give it a try - this isn't complicated!

Hint: you only need one loop!