Hello to all Concerned
How do solve the error type Unable to cast object of type 'System.Windows.Forms.RichTextBox' to type 'System.Windows.Forms.PictureBox' in Visual Studio Desktop 2012 platform in C#.
I am attempting to save an existing Jpeg image using picturebox component in an Active Mdichild form
from the Parent form using a menustrip component,
The code in C# is as follows:
private void saveFileToolStripMenuItem_Click(object sender, EventArgs e)
{
SaveFileDialog sfd = new SaveFileDialog();
sfd.Filter = "Images|*.png;*.bmp;*.jpg;*.tiff";
System.Drawing.Imaging.ImageFormat format = System.Drawing.Imaging.ImageFormat.Jpeg;
if (sfd.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
string ext = System.IO.Path.GetExtension(sfd.FileName);
switch (ext)
{
case ".jpg":
format = System.Drawing.Imaging.ImageFormat.Jpeg;
break;
case ".bmp":
format = System.Drawing.Imaging.ImageFormat.Bmp;
break;
}
Form activeChildForm = this.ActiveMdiChild;
if (activeChildForm != null)
{
PictureBox pictureBox1 = (PictureBox)activeChildForm.ActiveControl;
if (pictureBox1 != null)
pictureBox1.Image.Save(sfd.FileName, format);
}
//Error Response from compiler: Additional information: Unable to cast object of type
'System.Windows.Forms.RichTextBox' to type 'System.Windows.Forms.PictureBox'.
}
}
g
