Marvin Gapuz

Marvin Gapuz

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System.NullReferenceException: 'Object reference not set to

Feb 23 2019 8:45 AM
if (strFilePath == "")
{
if (ImageByteArrays.Length != 0)
ImageByteArrays = new byte[] { };
}
else
{
Image temp = new Bitmap(strFilePath);
MemoryStream strm = new MemoryStream();
temp.Save(strm, System.Drawing.Imaging.ImageFormat.Jpeg);
ImageByteArrays = strm.ToArray();
}
if (sqlcon.State == ConnectionState.Closed)
{
sqlcon.Open();
SqlCommand sqlcmd = new SqlCommand("UPDATE tblMobileProduct SET ProductName=@pname,Brand=@brand,ExpandalbeMemory=@expandablememory,OStype=@ostype,Depth=@depth,PakageKG=@pakagekg,Display=@display,CPUspeed=@cpuspeed,USBtype=@usbtype,SimSize=@simsize,MPtype=@mptype,CNtech=@cntech,BatCapacity=@batcapacity,ModelNum=@modelnum,Descrip=@descrip,nimages=@nimage,Images=@image WHERE ProductName=@pname", sqlcon);
sqlcmd.Parameters.AddWithValue("@pname", txtPname.Text.Trim());
sqlcmd.Parameters.AddWithValue("@brand", cmbBrand.Text.Trim());
sqlcmd.Parameters.AddWithValue("@expandablememory", txtExmem.Text.Trim());
sqlcmd.Parameters.AddWithValue("@ostype", cmbOStype.Text.Trim());
sqlcmd.Parameters.AddWithValue("@depth", txtDepth.Text.Trim());
sqlcmd.Parameters.AddWithValue("@pakagekg", txtPkg.Text.Trim());
sqlcmd.Parameters.AddWithValue("@display", txtDisplay.Text.Trim());
sqlcmd.Parameters.AddWithValue("@cpuspeed", txtCPUspeed.Text.Trim());
sqlcmd.Parameters.AddWithValue("@usbtype", txtUSBtype.Text.Trim());
sqlcmd.Parameters.AddWithValue("@simsize", txtSimSize.Text.Trim());
sqlcmd.Parameters.AddWithValue("@mptype", txtMPtype.Text.Trim());
sqlcmd.Parameters.AddWithValue("@cntech", txtCNtech.Text.Trim());
sqlcmd.Parameters.AddWithValue("@batcapacity", txtBatCapacity.Text.Trim());
sqlcmd.Parameters.AddWithValue("@modelnum", txtModelNum.Text.Trim());
sqlcmd.Parameters.AddWithValue("@descrip", txtDescription.Text.Trim());
sqlcmd.Parameters.AddWithValue("@nimage", txtImage.Text.Trim());
sqlcmd.Parameters.Add("@image", ImageByteArrays);
sqlcmd.ExecuteNonQuery();
sqlcon.Close();
MessageBox.Show("Updated Successfully!");
reset();
btnSave.Enabled = false;
btnAdd.Visible = false;
btnUpload.Enabled = true;
System.NullReferenceException: 'Object reference not set to an instance of an object.'
ImageByteArrays was null.
 
Hello Please Help. Why is this not working whenever I try to update. 

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Answers (3)