How to disable add button until all data fields are entered

Lerroy Fernandes

Hi I have a question where i need a check on all datainputfields, fields include textbox 1-9 and a picturebox 1.

I cannot seem to handle the check.

Request help. so at present this is the code for onclick, how do I add a check on click?

private void button2_Click(object sender, EventArgs e)

{

MemoryStream mmst = new MemoryStream();

pictureBox1.Image.Save(mmst, pictureBox1.Image.RawFormat);

byte[] img = mmst.ToArray();

dataGridView1.Rows.Add(textBox1.Text, textBox2.Text, textBox3.Text, textBox4.Text, textBox5.Text,

textBox6.Text, textBox7.Text, textBox8.Text, img);

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