private void Change_Students_Click(object sender, EventArgs e)
{
string value = "";
if (txtValue.Text == "")
{
MessageBox.Show("The value can't be nothing");
return;
}
if (!IsInt(txtValue.Text))
{
MessageBox.Show("Not a valid value(Only number, No comma's)");
return;
}
try
{
value = txtValue.Text;
ListViewItem item = listViewActivity.SelectedItems[0];
SomerenLogic.Activity_Service activity_Service = new Activity_Service();
activity_Service.UpdateStudent(value, int.Parse(item.Text));
}
catch (ArgumentOutOfRangeException)
{
MessageBox.Show("Select an Item");
return;
}
showPanel("Activity");
}