数据中继器未显示图像

Question

I need some help please. I have used a data repeater to display values from the database, all columns display values in the text boxes on the repeater except for the image. Am failing to convert byte back to image here's my code for save to database

private void btnSave_Click(object sender, EventArgs e)
{
    byte[] imageBt = null;
    FileStream fstream = new FileStream(this.txtImgPath.Text,FileMode.Open,FileAccess.Read);
    BinaryReader Br = new BinaryReader(fstream);
    imageBt = Br.ReadBytes((int)fstream.Length);
    // byte[] pic = stream.ToArray();
    try
    {
        conDB.Open();
        OleDbCommand command = new OleDbCommand();
        command.Connection = conDB;
        command.CommandText = "insert into abaanaCC (CCSpn_CODE,CCFname,CCLname,CCMname,CCDOB,CCgender,CCSchool,CaClass,CCVillage,CCSiblings,CCGuardian,CCContact,CCImage)" +
                " values ('" + spn_codetxt.Text + "','" + txtfname.Text + "','" + lnametxt.Text + "','" + mnametxt.Text + "','" + DOBDTPicker1.Text + "','" + gendercomboBox.Text + "','" + schtxt.Text + "','" + classcomboBox.Text + "','" + villatxt.Text + "','" + siblingscombobx.Text + "','" + guardiantxt.Text + "','" + contacttxt.Text + "',@IMG) ";
        command.Parameters.Add(new OleDbParameter("@IMG",imageBt));
        //command.Parameters.AddWithValue("@IMG",pic);
        command.ExecuteNonQuery();
        MessageBox.Show("Record Saved");
    }
    catch (Exception ex)
    {
        MessageBox.Show("Unable to save" + ex);
    }
    conDB.Close();
}

then for the data repeater

private void Update_Load(object sender, EventArgs e)
    {
        // TODO: This line of code loads data into the 'abaanaDataSet.abaanaCC' table. You can move, or remove it, as needed.
        this.abaanaCCTableAdapter.Fill(this.abaanaDataSet.abaanaCC);
        int c = this.abaanaDataSet.abaanaCC.Rows.Count;
        if (c > 0) ;
        {
            byte[] mydata = new byte[0];
            mydata = (byte[])(this.abaanaDataSet.abaanaCC.Rows[c-1]["CCImage"]);
            MemoryStream stream = new MemoryStream(mydata);
            cCImagePictureBox.Image = Image.FromStream(stream);

        }

}

Answer 1

Make sure you're actually getting valid image data from your dataset. This should work:

private void Form3_Load(object sender, EventArgs e)
{
    this.productPhotoTableAdapter.Fill(this.adventureWorks2014DataSet.ProductPhoto);

    byte[] mydata = (byte[])this.adventureWorks2014DataSet.ProductPhoto[100]["LargePhoto"];
    MemoryStream stream = new MemoryStream(mydata);
    pictureBox1.Image = Image.FromStream(stream);
}