play sequence of gif image

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good morning , i'm working on playing sequence of gif image ,but it always show me the last image only , i tried to write a timer that will wait 2 second before getting next image from db , but it doesn't work, could you help me please .

C#

for (int i = 0; i <= myList.Count - 1; i++)
           {
               data = myList[i].ToString();
               // Console.WriteLine(data);
               data = what_word(data);
               if (!data.Equals("not found"))
               {

                   command.CommandText = "SELECT picturename FROM pictures WHERE word = '" + data + "';";

                   command.Parameters.AddWithValue("@word", myList[i].ToString());

                   reader1 = command.ExecuteReader();


                   while (reader1.Read())
                   {

                     // Console.WriteLine(reader1[0].ToString());
                       string imagename = "D:\\grad.projec\\C#\\db1\\";
                       imagename = imagename + reader1[0].ToString();
                       //Console.WriteLine(imagename);
                     tt1 = Image.FromFile(imagename);
                   
                      pictureBox1.Image = tt1;


                   }

               }
               
               reader1.Close();

           }

Posted 20-Dec-12 23:42pm

azizamustafa

Updated 21-Dec-12 0:10am

v2

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OriginalGriff 21-Dec-12 5:54am

This is not a good question - we cannot work out from that little what you are trying to do.
Remember that we can't see your screen, access your HDD, or read your mind.
Use the "Improve question" widget to edit your question and provide better information.

azizamustafa 21-Dec-12 6:14am

i edited it

1 solution

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OriginalGriff · Answer 1 · 2012-12-21T00:19:00

Ok, ok...this may be fun...

The problem is quite simple, but it may take a little explaining.

Lets simplify your code a bit...

C#

int myInt = 0;
for (int i = 0; i < 5; i++)
   {
   myInt = i;
   }

What would you expect that code to do? And how would it differ from:

C#

int myInt = 5 - 1;

Your code does the same thing. It reads a collection of image names from teh DB, then it converts them to Images, and assigns them one after the other to your picture box. Just like with an int, the picture box ends up with just the final value, as if your loop did not exist.

So, change your code to:
Set up a class level List of strings, and clear it before you enter your loop.
Set a class level integer to index it.
In the loop, instead of creating an image, add the name to the List.
After the loop, set the index to zero.
Now, add a Timer to your form, which has an Interval suitable for switching images.
In the Tick event handler, check the index - if it is greater than or equal to the List.Count do nothing.
Otherwise, get the List item and the index, and increment the index for next time.
Now get the Image, and set the PictureBox.Image property.