This tutorial will teach you how to make a + calculator in C#.net step by step.
private void txtone_Click(object sender, EventArgs e)
{
txtans.Text = txtans.Text + txtone.Text;
}
private void txttwo_Click(object sender, EventArgs e)
{
txtans.Text = txtans.Text + txttwo.Text;
}
private void txtthree_Click(object sender, EventArgs e)
{
txtans.Text = txtans.Text + txtthree.Text;
}
private void txtfour_Click(object sender, EventArgs e)
{
txtans.Text = txtans.Text + txtfour.Text;
}
private void txtfive_Click(object sender, EventArgs e)
{
txtans.Text = txtans.Text + txtfive.Text;
}
private void txtsix_Click(object sender, EventArgs e)
{
txtans.Text = txtans.Text + txtsix.Text;
}
private void txtseven_Click(object sender, EventArgs e)
{
txtans.Text = txtans.Text + txtseven.Text;
}
private void txteight_Click(object sender, EventArgs e)
{
txtans.Text = txtans.Text + txteight.Text;
}
private void txtnine_Click(object sender, EventArgs e)
{
txtans.Text = txtans.Text + txtnine.Text;
}
private void txtzero_Click(object sender, EventArgs e)
{
txtans.Text = txtans.Text + txtzero.Text;
}
private void txtdot_Click(object sender, EventArgs e)
{
txtans.Text = txtans.Text + txtdot.Text;
}
double sum1 = 0;
double sum2 = 0;
private void txtequl_Click(object sender, EventArgs e)
{
sum2 = sum1 + double.Parse(txtans.Text);
txtans.Text = sum2.ToString();
sum1 = 0;
}
private void txtplus_Click(object sender, EventArgs e)
{
sum1 = sum1 + double.Parse(txtans.Text);
txtans.Clear();
}
private void txtClear_Click(object sender, EventArgs e)
{
txtans.Clear();
}