Datagridview selected record to show in picturebox

Question

When pressing a button I select some records from a datagridview I would now like to have the picture shown in pictures boxes from a certain cell, and I am trying to create a byte, but I am not succeeding. Hopefully you can help I am kind of lost.

string playerImg = string.Format("{0}", dgCompetingPlayers.Rows[i].Cells[1].Value); I would like to convert this to byte, but how??

 

 System.Text.ASCIIEncoding encoding = new System.Text.ASCIIEncoding();

 Byte[] bytes = encoding.GetBytes(playerImg);

 MemoryStream ms = new MemoryStream(bytes.ToArray());

    Image image = Image.FromStream(ms); Here the ERROR Parameter is not valid.....          

                pictureBox1.Image = image;

Answer 1

What does the string "playerImg" look like before it's converted to bytes? What does it have in it?

Jim

Answer 2

Hi Scorgi,
Thank you for posting.

Based on your description, would you want to click a button and raise an event to assign an image was in the datagridview to a PictureBox control? If I misunderstood, please feel free to let me know.
Well, I think I need to share some ideas and code snippets with you. Just my option, but it works well on my side. First of all, I used DataGridView’s CellClick event to achieve this task. Then, I used Image.GetThumbnailImage method. Here’s my sample. Please check it.

private void dataGridView1_CellClick(object sender, DataGridViewCellEventArgs e)
{
   int a = e.ColumnIndex;
   int b = e.RowIndex;
   Image.GetThumbnailImageAbort myImage = new Image.GetThumbnailImageAbort(ThumbnailCallback);
   Image image1 = ((Image)this.dataGridView1.Rows[b].Cells[a].Value).GetThumbnailImage(200, 200, myImage, IntPtr.Zero);
   this.pictureBox1.Image = image1;
}

 public bool ThumbnailCallback()
 {
   return false;
}

Sincerely,
Larcolais

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Larcolais Gong[MSFT]
MSDN Community Support | Feedback to us
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Answer 3

Any update? Has your question been resolved?

Best Regards,

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Larcolais Gong[MSFT]
MSDN Community Support | Feedback to us
Get or Request Code Sample from Microsoft
Please remember to mark the replies as answers if they help and unmark them if they provide no help.