/// <summary>
/// 输入与删除当前焦点控件字符
/// </summary>
/// <param name="focus"></param>
/// <param name="inputChar"></param>
/// <param name="flag"></param>
public static void inputText(IInputElement focus, string inputChar, string flag)
{
if (focus == null)
{
return;
}
if (focus is TextBox)
{
TextBox tb = (TextBox)focus;
int index = tb.SelectionStart;
if (flag == "backspace")
{
if (index > 0)
{
tb.Text = tb.Text.Substring(0, index - 1) + tb.Text.Substring(index);
tb.SelectionStart = index - 1;
}
}
else if (flag == "del")
{
tb.Text = "";
}
else
{
tb.Text = tb.Text.Substring(0, index) + inputChar + tb.Text.Substring(index);
tb.SelectionStart = index + inputChar.Length;
}
Keyboard.Focus(tb);
return;
}
if (focus is PasswordBox)
{
PasswordBox pb = (PasswordBox)focus;
var Select = pb.GetType().GetMethod("Select", BindingFlags.Instance | BindingFlags.NonPublic);
var GetSelect = pb.GetType().GetMethod("get_Selection", BindingFlags.Instance | BindingFlags.NonPublic);
int index = pb.Password.Length;
if (flag == "backspace")
{
if (index > 0)
{
pb.Password = pb.Password.Substring(0, index - 1);
}
}
else if (flag == "del")
{
pb.Password = "";
}
else
{
pb.Password = pb.Password + inputChar;
}
Keyboard.Focus(pb);
Select.Invoke(pb, new object[] { pb.Password.Length, 0 });
return;
}
}
private static void SetPasswordBoxSelection(PasswordBox passwordBox, int start, int length)
{
var select = passwordBox.GetType().GetMethod("Select",
BindingFlags.Instance | BindingFlags.NonPublic);
select.Invoke(passwordBox, new object[] { start, length });
}
/// <summary>
/// 密码框光标处理
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void PasswordBox_PasswordChanged(object sender, RoutedEventArgs e)
{
PasswordBox pwdBox = (PasswordBox)sender;
var select = pwdBox.GetType().GetMethod("Select", BindingFlags.Instance | BindingFlags.NonPublic);
select.Invoke(pwdBox, new object[] { pwdBox.Password.Length + 1, pwdBox.Password.Length + 1 });
}
private static void PasswordChanged(object sender, RoutedEventArgs e)
{
PasswordBox password = sender as PasswordBox;
SetBoundPassword(password, password.Password);
// set cursor past the last character in the password box
password.GetType().GetMethod("Select", BindingFlags.Instance | BindingFlags.NonPublic).Invoke(password, new object[] { password.Password.Length, 0 });
}
private static void PasswordChanged(object sender, RoutedEventArgs e)
{
PasswordBox password = sender as PasswordBox;
SetBoundPassword(password, password?.Password);
password?.GetType().GetMethod("Select", BindingFlags.Instance | BindingFlags.NonPublic)?
.Invoke(password, new object[] { password.Password.Length, 0 });
}
private static void SetSelectionOrCaretPosition(this PasswordBox passwordBox, int start, int length = 0)
{
if (_select == null)
{
_select = passwordBox.GetType().GetMethod("Select", BindingFlags.Instance | BindingFlags.NonPublic);
}
_select.Invoke(passwordBox, new object[] { start, length });
passwordBox.Focus();
}
protected override void OnGotFocus(RoutedEventArgs e)
{
base.OnGotFocus(e);
if (!IsDisplayPassword && passwordBox != null)
{
passwordBox.Focus();
passwordBox.GetType().GetMethod("Select", BindingFlags.Instance | BindingFlags.NonPublic).Invoke(passwordBox, new object[] { this.Text.Length, 0 });
}
else
{
this.Focus();
this.Select(this.Text.Length, 0);
}
}
private void SetSelection(PasswordBox passwordBox, int start, int length)
{
try
{
if (start < 0x0)
{
start = passwordBox.Password.Length;
}
passwordBox.GetType().GetMethod("Select", BindingFlags.NonPublic | BindingFlags.Instance).Invoke(passwordBox, new object[] { start, length });
}
catch (Exception exception)
{
DebugLog.Assert(false, exception.Message);
passwordBox.SelectAll();
}
}
private void OnClickExecute(Image sender)
{
IsShown = !IsShown;
OnMouseEnterExecute(sender);
if (IsShown)
{
textBox.Focus();
textBox.SelectionStart = textBox.Text.Length;
}
else
{
passwordBox.Focus();
passwordBox.GetType()
.GetMethod("Select", BindingFlags.Instance | BindingFlags.NonPublic)
.Invoke(passwordBox, new object[] { passwordBox.Password.Length, 0 });
}
}
public void TogglePasswordVisibility()
{
VisiblePassword = !VisiblePassword;
if (_textBox == null || _passwordBox == null)
{
return;
}
if (_textBox.IsFocused)
{
_passwordBox.GetType().GetMethod("Select", BindingFlags.Instance | BindingFlags.NonPublic).Invoke(_passwordBox, new object[] {
_textBox.SelectionStart, _textBox.SelectionLength
});
_passwordBox.Focus();
}
else if (_passwordBox.IsFocused)
{
_textBox.Focus();
}
}
public static void SetSelection(this PasswordBox passwordBox, int start, int length)
{
passwordBox.GetType().GetMethod("Select", BindingFlags.Instance | BindingFlags.NonPublic)
.Invoke(passwordBox, new object[] { start, length });
}
public DynamicFocusSection()
{
var content = new Panel();
var focusControlCheckBox = new CheckBox {
Text = "Focus Control", Checked = true
};
var addContentButton = new Button {
Text = "Add Control"
};
var count = 0;
addContentButton.Click += (sender, e) =>
{
Control control;
switch ((count++) % 9)
{
case 0: control = new TextBox(); break;
case 1: control = new TextArea(); break;
case 2: control = new CheckBox {
Text = "A Check Box"
}; break;
case 3: control = new RadioButton {
Text = "A Radio Button"
}; break;
case 4: control = new DropDown {
Items = { "Item 1", "Item 2", "Item 3" }
}; break;
case 5: control = new DateTimePicker(); break;
case 6: control = new ColorPicker(); break;
case 7: control = new PasswordBox(); break;
case 8: control = new ListBox {
Items = { "Item 1", "Item 2", "Item 3" }
}; break;
case 9: control = new PasswordBox(); break;
default: throw new InvalidOperationException();
}
if (focusControlCheckBox.Checked ?? false)
{
control.Focus();
}
content.Content = new TableLayout(
null,
new Label {
Text = string.Format("Control: {0}", control.GetType().Name)
},
new TableRow(control),
null
);
};
Content = new TableLayout(
new TableLayout(new TableRow(null, addContentButton, focusControlCheckBox, null)),
content
);
}