/// <summary>
/// 增加文字到textbox
/// </summary>
/// <param name="control"></param>
/// <param name="text">增加的文字</param>
/// <param name="time">是否在前面加上时间</param>
public static void AppendText(TextBoxBase control, string text, bool time = false)
{
if (control.InvokeRequired)
{
Action <string> action = x =>
{
if (time)
{
control.AppendText(DateTime.Now.ToString() + " " + x + "\r\n");
}
else
{
control.AppendText(x + "\r\n");
}
control.SelectionStart = control.Text.Length;
control.SelectionLength = 0;
control.Focus();
};
control.Invoke(action, text);
}
else
{
if (time)
{
control.AppendText(DateTime.Now.ToString() + " " + text + "\r\n");
}
else
{
control.AppendText(text + "\r\n");
}
control.SelectionStart = control.Text.Length;
control.SelectionLength = 0;
control.Focus();
}
}
public static void Insert(this TextBoxBase txtbox, string text, bool removeSelectedText = true, bool selectNewlyInserted = true)
{
if (string.IsNullOrEmpty(text))
{
return;
}
var oldSelectStart = txtbox.SelectionStart;
var oldSelectLength = txtbox.SelectionLength;
if (txtbox.SelectionLength > 0)
{
if (removeSelectedText)
{
txtbox.Text = txtbox.Text.Remove(oldSelectStart, oldSelectLength).Insert(oldSelectStart, text);
txtbox.Focus();
txtbox.SelectionStart = selectNewlyInserted ? oldSelectStart : oldSelectStart + text.Length;
txtbox.SelectionLength = selectNewlyInserted ? text.Length : 0;
}
else
{
txtbox.Text = txtbox.Text.Insert(oldSelectStart, text);
txtbox.Focus();
txtbox.SelectionStart = selectNewlyInserted ? oldSelectStart : oldSelectStart + text.Length;
txtbox.SelectionLength = selectNewlyInserted ? text.Length : 0;
}
}
else
{
txtbox.Text = txtbox.Text.Insert(oldSelectStart, text);
txtbox.Focus();
txtbox.SelectionStart = selectNewlyInserted ? oldSelectStart : oldSelectStart + text.Length;
txtbox.SelectionLength = selectNewlyInserted ? text.Length : 0;
}
}
public override void OnValueChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
{
// If we don't have a control, return
if (sender is TextBoxBase)
{
TextBoxBase control = (TextBoxBase)sender;
if ((bool)e.NewValue)
{
// Focus this control
control.Focus();
// Select all text
control.SelectAll();
}
}
if (sender is PasswordBox)
{
PasswordBox password = (PasswordBox)sender;
if ((bool)e.NewValue)
{
// Focus this control
password.Focus();
// Select all text
password.SelectAll();
}
}
}
internal static void FocusOnRightClick(TextBoxBase textBox, MouseEventArgs e)
{
if (e.Button == MouseButtons.Right)
{
textBox.Focus();
}
}
private static void SetCaretAt(TextBoxBase textBox, int position)
{
textBox.Focus();
textBox.SelectionStart = position;
textBox.SelectionLength = 0;
textBox.ScrollToCaret();
}
private void ShowMe(TextBoxBase control)
{
this.SetAutoCompleteLocation(control, true);
this.Visible = true;
this.isVisible = true;
activeControl.Focus();
}
public void MyShow(List <InteliSenseData> data, List <InteliSenseData> commands = null)
{
if (!HasData(data, commands))
{
Hide();
}
else
{
InitListBox(data, commands);
if (Visibility > Visibility.Visible)
{
Show();
}
UpdateLocation();
_editor.Focus();
}
}
public static bool ParseInputD(TextBoxBase control, out ulong value)
{
if (!ulong.TryParse(control.Text, out value))
{
control.Focus();
control.SelectAll();
return(false);
}
return(true);
}
public static bool ParseInputH(TextBoxBase control, out ulong value)
{
if (!ulong.TryParse(control.Text, NumberStyles.HexNumber, CultureInfo.InvariantCulture, out value))
{
control.Focus();
control.SelectAll();
return(false);
}
return(true);
}
private static void PushCode(TextBoxBase target, string barcode)
{
target.Focus();
foreach (char Character in barcode)
{
SendKeys.SendWait(Character.ToString());
}
SendKeys.Send("{ENTER}");
}
/// <summary>
/// 设置光标位置
/// </summary>
/// <param name="p_ctl"></param>
private void m_mthSetMousePosition(Control p_ctl)
{
TextBoxBase txt = p_ctl as TextBoxBase;
if (txt != null)
{
txt.SelectionStart = txt.Text.Length;
txt.SelectionLength = 0;
txt.Focus();
}
}
private void cajaLN_KeyPress(object sender, KeyPressEventArgs e)
{
if (e.KeyChar == (char)Keys.Enter)
{
if (string.IsNullOrEmpty(caja.Text))
{
caja.Text = Texto;
caja.ForeColor = Color.Silver;
}
siguiente.Focus();
}
else
if (Char.IsDigit(e.KeyChar) || Char.IsLetter(e.KeyChar))
{
if (caja.Text.Equals(Texto) || caja.ForeColor == Color.Silver)
{
caja.Clear();
caja.ForeColor = Color.Black;
}
}
}
protected override void Append(LoggingEvent loggingEvent)
{
var logInfo = string.Empty;
if (_textBox == null)
{
if (string.IsNullOrEmpty(FormName) || string.IsNullOrEmpty(TextBoxName))
{
return;
}
Form form = Application.OpenForms[FormName];
if (form == null)
{
return;
}
TableLayoutPanel layoutPanel = form.Controls[TableLayoutPanelName] as TableLayoutPanel;
if (layoutPanel == null)
{
return;
}
Panel panel = layoutPanel.Controls[PanelName] as Panel;
if (panel == null)
{
return;
}
TabControl tabControl = panel.Controls[TabControlName] as TabControl;
if (tabControl == null)
{
return;
}
TabPage tabPage = tabControl.Controls[TabPageName] as TabPage;
if (tabPage == null)
{
return;
}
_textBox = tabPage.Controls[TextBoxName] as TextBox;
if (_textBox == null)
{
return;
}
form.FormClosed += (s, e) => _textBox = null;
}
_textBox.BeginInvoke((MethodInvoker) delegate
{
_textBox.AppendText(RenderLoggingEvent(loggingEvent));
_textBox.Focus();
_textBox.Select(_textBox.TextLength, 0);
_textBox.ScrollToCaret();
});
}
public static bool FocusWithIndex(this TextBoxBase textBox, int?index)
{
if (textBox.Focus())
{
if (index.HasValue)
{
textBox.Select(index.Value > textBox.TextLength ? textBox.TextLength : index.Value, 0);
}
return(true);
}
return(false);
}
/// <summary>
/// 验证非空
/// </summary>
/// <param name="textBox"></param>
/// <param name="message"></param>
/// <param name="name"></param>
/// <returns></returns>
protected bool VerifyRequired(TextBoxBase textBox, Label message = null, string name = null)
{
if (string.IsNullOrWhiteSpace(textBox.Text))
{
if (message != null)
{
message.ForeColor = Color.Red;
message.Text = string.Format("{0}不能为空", name);
}
textBox.Focus();
return(true);
}
return(false);
}
private void OSKB_Click(object sender, EventArgs e)
{
if (m_focusTextBox == null)
{
return;
}
string sendertag = ((Button)sender).Tag.ToString(), tstr = m_focusTextBox.Text;
switch (sendertag)
{
case "ENTER":
m_focusTextBox.Focus();
SendKeys.Send("{TAB}");
break;
case "CLEAR":
m_focusTextBox.Text = string.Empty;
break;
case "BACKSPACE":
m_focusTextBox.Text = tstr.Length > 0 ? tstr.Substring(0, tstr.Length - 1) : tstr;
break;
case "CAPSLOCK":
m_capsOn = !m_capsOn;
this.SuspendLayout();
btn_capslock.BackColor = m_capsOn ? SelectedControlColor : ActionControlColor;
for (int i = 97; i <= 122; i++)
{
tlpAlphaPad.Controls["btn_" + (char)i].Text = ((char)(i - (m_capsOn ? 32 : 0))).ToString();
}
btn_bracesleft.Text = ((char)(m_capsOn ? 123 : 91)).ToString();
btn_bracesright.Text = ((char)(m_capsOn ? 125 : 93)).ToString();
this.ResumeLayout(true);
break;
default:
if (m_focusTextBox.SelectionLength == m_focusTextBox.Text.Length)
{
tstr = string.Empty;
}
if (tstr.Length < m_focusTextBox.MaxLength)
{
m_focusTextBox.Text = tstr + ((Button)sender).Text;
}
break;
}
}
protected override void OnPreviewGotKeyboardFocus(KeyboardFocusChangedEventArgs e)
{
// if event is called from ComboBox itself and not from any of underlying controls
// and if textBox is defined in control template
if (e.OriginalSource == e.Source && textBox != null)
{
textBox.Focus();
textBox.SelectAll();
e.Handled = true;
}
else
{
base.OnPreviewGotKeyboardFocus(e);
}
}
private void SendKeyToTextBox(string code)
{
if (textBoxInput == null)
{
return;
}
if (code.Equals("(") ||
code.Equals(")") ||
code.Equals("+"))
{
code = "{" + code + "}";
}
textBoxInput.Focus();
SendKeys.Send(code);
}
/// <summary>
/// Left click handler. We handle left clicks to ensure the text box gets focus, and if
/// it already has focus we reshow the keyboard. This means a user can reshow the
/// keyboard when the text box already has focus, i.e. they don't have to swap focus to
/// another control and then back to the text box.
/// </summary>
/// <param name="sender">The text box that was clicked on.</param>
/// <param name="e">The left mouse click event arguments.</param>
private static void OnMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
TextBoxBase textBox = sender as TextBoxBase;
if (null != textBox)
{
if (textBox.IsKeyboardFocusWithin)
{
// TODO: Show on-screen keyboard
}
else
{
// Ensure focus is set to the text box - the focus handler will then show the
// keyboard.
textBox.Focus();
e.Handled = true;
}
}
}
/// <summary>
/// Repeatedly attempts to focus the text box until focus is achieved.
/// </summary>
/// <param name="textBox"></param>
public static void Activate(this TextBoxBase textBox)
{
DispatcherTimer timer = new DispatcherTimer();
timer.Interval = TimeSpan.FromMilliseconds(100);
timer.Tick += (tmr, args) =>
{
if (textBox.IsKeyboardFocused)
{
timer.Stop();
timer = null;
}
textBox.Focus();
};
timer.Start();
}
private bool RegexVerifyValue(string regex, TextBoxBase textBox, Label message = null, string name = null)
{
if (!string.IsNullOrWhiteSpace(textBox.Text))
{
var str = textBox.Text.Trim();
var reg = new Regex(regex);
if (!reg.IsMatch(str))
{
if (message != null)
{
message.ForeColor = Color.Red;
message.Text = string.Format("{0}格式有误", name);
}
textBox.Focus();
return(true);
}
}
return(false);
}
public override bool Save()
{
string txt = textBox.Text.Trim();
NumberStyles style = NumberStyles.Integer;
if (txt.StartsWith("0x"))
{
txt = txt.Substring(2);
style = NumberStyles.HexNumber;
}
int val;
if (!int.TryParse(txt, style, NumberFormatInfo.InvariantInfo, out val))
{
textBox.Focus();
MessageService.ShowMessage("${res:Dialog.ProjectOptions.PleaseEnterValidNumber}");
return(false);
}
Set(val.ToString(NumberFormatInfo.InvariantInfo));
return(true);
}
/// <summary>
/// Moves the caret to a specific line of a textbox
/// </summary>
/// <param name="t"></param>
/// <param name="lineNumber"></param>
public static void GoToLine(this TextBoxBase t, int lineNumber)
{
int i = 1;
int intStart = 0;
int intEnd = 0;
foreach (Match m in Regex.Matches(t.Text, "^.*?$", RegexOptions.Multiline))
{
if (i == lineNumber)
{
intStart = m.Index;
intEnd = intStart + m.Length;
break;
}
i++;
}
t.Select(intStart, intEnd - intStart);
t.ScrollToCaret();
t.Focus();
}
}//method
private bool DoSearch(TextBoxBase textBox, string fragment, int start)
{
textBox.SelectionLength = 0;
// Compile the regular expression.
Regex r = new Regex(fragment, RegexOptions.IgnoreCase);
// Match the regular expression pattern against a text string.
Match m = r.Match(textBox.Text.Substring(start));
if (m.Success)
{
int i = 0;
Group g = m.Groups[i];
CaptureCollection cc = g.Captures;
Capture c = cc[0];
textBox.SelectionStart = c.Index + start;
textBox.SelectionLength = c.Length;
textBox.Focus();
textBox.ScrollToCaret();
return(true);
}
return(false);
}//method
private static void FocusTextBox(TextBoxBase textBox)
{
DeferredAction.Create(context =>
{
if (textBox == null || Application.Current == null || Application.Current.MainWindow == null)
{
return;
}
textBox.Focus();
textBox.SelectAll();
FocusManager.SetFocusedElement(Application.Current.MainWindow, textBox);
Keyboard.Focus(textBox);
if (textBox.IsVisible == false || textBox.IsKeyboardFocused)
{
context?.Dispose();
}
else
{
context?.Defer(TimeSpan.FromSeconds(0.25));
}
}).Defer(TimeSpan.FromSeconds(0.25));
}
public virtual bool Validate(int flags, bool setFocusIfNotValid)
{
ShowErrorIcon("");
if ((flags & (int)ValidatingFlag.Max) == 0)
{
return(true);
}
if ((flags & (int)ValidatingFlag.Max_IfEmpty) != 0 && m_textBox.Text.Length == 0)
{
if ((flags & (int)ValidatingFlag.Beep_IfEmpty) != 0)
{
NativeMethods.MessageBeep(MessageBoxIcon.Exclamation);
}
if ((flags & (int)ValidatingFlag.SetValid_IfEmpty) != 0)
{
UpdateText();
return(true);
}
if ((flags & (int)ValidatingFlag.ShowIcon_IfEmpty) != 0)
{
ShowErrorIcon(ErrorMessage);
}
if ((flags & (int)ValidatingFlag.ShowMessage_IfEmpty) != 0)
{
ShowErrorMessageBox(ErrorMessage);
}
if (setFocusIfNotValid)
{
m_textBox.Focus();
}
return(false);
}
if ((flags & (int)ValidatingFlag.Max_IfInvalid) != 0 && m_textBox.Text.Length != 0 && !IsValid())
{
if ((flags & (int)ValidatingFlag.Beep_IfInvalid) != 0)
{
NativeMethods.MessageBeep(MessageBoxIcon.Exclamation);
}
if ((flags & (int)ValidatingFlag.SetValid_IfInvalid) != 0)
{
UpdateText();
return(true);
}
if ((flags & (int)ValidatingFlag.ShowIcon_IfInvalid) != 0)
{
ShowErrorIcon(ErrorMessage);
}
if ((flags & (int)ValidatingFlag.ShowMessage_IfInvalid) != 0)
{
ShowErrorMessageBox(ErrorMessage);
}
if (setFocusIfNotValid)
{
m_textBox.Focus();
}
return(false);
}
return(true);
}
public static void FocusAndSelectAll(this TextBoxBase control)
{
control.Focus();
control.SelectAll();
}
public bool Focus()
{
return(TextBox.Focus());
}
public static void SetSelect(this TextBoxBase textBox)
{
textBox.Focus();
textBox.SelectAll();
}
public static void scrollToEnd(TextBoxBase txb)
{
txb.Focus();
txb.Select(txb.TextLength, 0);
}