MadCow.EditRepository.checkButton_Click C# (CSharp) Method

        private void checkButton_Click(object sender, EventArgs e)
        {
            branchComboBox.Items.Clear();
            var branches = FindBranch.FindBrach(repositoryTextBox.Text);
            if (branches != null)
            {
                branchComboBox.Items.AddRange(branches);
                branchComboBox.SelectedIndex = 0;
                okButton.Enabled = !string.IsNullOrEmpty(branchComboBox.SelectedItem.ToString());
            }
            else
            {
                MessageBox.Show("Something went wrong!");
            }
        }