} else {
MessageBox.Show("文件不存在或者文件路径错误"); } }
4.1.2 关于MD5验证的代码
private void button_Check_Click(object sender, EventArgs e) {//检查登陆密码是否正确
byte[] data = Encoding.GetEncoding("GB2312").GetBytes(textBox_Password.Text); MD5 md5 = new MD5CryptoServiceProvider(); byte[] OutBytes = http://www.77cn.com.cnputeHash(data); string OutString = "";//保存输出的结果 for (int i = 0; i < OutBytes.Length; i++) {
OutString += OutBytes[i].ToString("x2"); }
string right = "";
StreamReader sr = new StreamReader("d:\\Pass.ini", Encoding.GetEncoding("GB2312"),
false);
while (sr.Peek() >= 0) //一直读到文件尾 {
right = sr.ReadLine(); }
sr.Close(); sr.Dispose();
if (right == OutString.ToUpper()) {
this.f1.Show(); this.Hide(); } else
this.f1.Close();
}
4.1.3 关于文件拖动的代码
private void Form1_DragEnter(object sender, DragEventArgs e) {
//触发得到路径事件
if (e.Data.GetDataPresent(DataFormats.FileDrop)) e.Effect = DragDropEffects.Link; else e.Effect = DragDropEffects.None; }
private void Form1_DragDrop(object sender, DragEventArgs e) {
//得到路径，当拖入新的文件时，将所有的单选框都复制为没有被选中 filePath = (string[])e.Data.GetData(DataFormats.FileDrop); textBox_FilePath.Text = filePath[0]; radioButton_Delete.Checked = false; radioButton_Deny.Checked = false; radioButton_Modify.Checked = false; radioButton_Move.Checked = false; radioButton_Read.Checked = false; radioButton_Allow.Checked = false; }