1.登陆界面截图
2.功能描述
实现收银员和库管员通过输入账号和密码登陆，正确显示登陆成功，失败显示登陆失败，点击推出就退出登陆界面。
控件
| 属性 |
值 |
| TEXT |
用户登录 |
| MaximizeBox |
False |
| MinimizeBox |
False |
| StartPosition |
CenterScreen |
label1
label2
label3
Linklabel1
comboBox1
| 属性 |
值 |
| DropDownStyle |
DropDownList |
| SelectedIndexChanged |
comboBox1_SelectedIndexChanged |
textBox1
| 属性 |
值 |
| MaxLength |
9 |
| Click |
textBox1_Click |
| KeyPress |
textBox1_KeyPress |
| TextChanged |
textBox1_TextChanged |
textBox2
| 属性 |
值 |
| Click |
textBox1_Click |
| KeyPress |
textBox2_KeyPress |
| Enter |
text Box1_Enter |
| MaxLength |
6 |
| Passwordchar |
* |
button1
| 属性 |
值 |
| Text |
登陆 |
| UseVisualStyleBackColor |
False |
| Click |
button1_Click |
button2
| 属性 |
值 |
| Text |
退出 |
| UseVisualStyleBackColor |
False |
| Click |
button2_Click |
5.代码
{
if (textBox1.Text == "123456" && textBox2.Text == "123456")
MessageBox.Show("登陆成功", "提示");
else
MessageBox.Show("用户名或密码错误", "提示", MessageBoxButtons.OKCancel, MessageBoxIcon.Error);
}
private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
{
if (e.KeyChar == (char)Keys.Enter)
{
SendKeys.Send("{tab}");
}
}
private void textBox2_KeyPress(object sender, KeyPressEventArgs e)
{
if (e.KeyChar == (char)Keys.Enter)
{
this.button1_Click(sender, e);
}
}
private void textBox1_Enter(object sender, EventArgs e)
{
((TextBox)sender).SelectAll();
}
private void textBox2_Enter(object sender, EventArgs e)
{
((TextBox)sender).SelectAll();
}
private void Form1_Load(object sender, EventArgs e)
{
this.comboBox1.SelectedIndex = 0;
}
