public static void ClearCrossThread(this TextBoxBase textBox)
{
if (textBox.InvokeRequired)
{
Action <TextBoxBase> action = new Action <TextBoxBase>(ClearCrossThread);
textBox.Invoke(action, new object[] { textBox });
}
else
{
textBox.Clear();
}
}
static void ProcessBackspace(TextBoxBase txt, ref String m)
{
while (true)
{
var p = m.IndexOf('\b');
if (p < 0)
{
break;
}
// 计算一共有多少个字符
var count = 1;
while (p + count < m.Length && m[p + count] == '\b')
{
count++;
}
// 前面的字符不足，消去前面历史字符
if (p < count)
{
count -= p;
// 选中最后字符，然后干掉它
if (txt.TextLength > count)
{
txt.Select(txt.TextLength - count, count);
txt.SelectedText = null;
}
else
{
txt.Clear();
}
}
else if (p > count)
{
// 少输出一个
txt.AppendText(m.Substring(0, p - count));
}
if (p == m.Length - count)
{
m = null;
break;
}
m = m.Substring(p + count);
}
}
/*private string getAditionalFilter()
* {
* if (Qry.Cfg.AditionalFilter != null && Adv.AditionalFilter != "")
* { return " AND " + Adv.AditionalFilter; }
* else
* { return ""; }
* }*/
private void Pesquisa(string Cod, bool ExecPesquisa)
{
if (BeforeResearch != null)
{
BeforeResearch(this);
}
// Limpa Controls
Text.Clear();
for (int i = 0; i < Rets.Count; i++)
{
Rets[i].RetField.Clear();
}
// Pesquisa
if (IsEmpty(Cod) && ExecPesquisa)
{
if (Qry.Exec())
{
Cod = Qry.GetField(PrimaryKey).ToString();
}
}
if (!IsEmpty(Cod))
{
DataSource ds = new DataSource(this.cnn.GetDataSet(Qry.Cfg.Sql + " Where " + PrimaryKey + " = " + SqlValue(Cod)));
for (int i = 0; i < Rets.Count; i++)
{
Rets[i].RetField.Text = ds.GetField(Rets[i].SqlField).ToString();
}
if (AfterResearch != null)
{
AfterResearch(this, ds);
}
}
}
public static void LoadText (TextBoxBase sourceRichEdit, string fileName, bool excludeEmptyLines)
{
if (sourceRichEdit == null) throw new NolmeArgumentNullException ();
sourceRichEdit.Clear ();
//Win32RichEditUtility.BeginUpdate (sourceRichEdit);
if (File.Exists (fileName))
{
string [] aszAllLines = FileUtility.ReadAllLines (fileName, excludeEmptyLines,true);
string szBuffer = String.Concat (aszAllLines);
sourceRichEdit.AppendText (szBuffer);
}
//Win32RichEditUtility.EndUpdate (sourceRichEdit);
}
public static void LoadText (TextBoxBase sourceRichEdit, Stream stream)
{
if (sourceRichEdit == null) throw new NolmeArgumentNullException ();
if (stream == null) throw new NolmeArgumentNullException ();
byte []aBytes;
sourceRichEdit.Clear ();
aBytes = new byte [stream.Length + 1];
stream.Read (aBytes, 0, (int)stream.Length);
ASCIIEncoding oObj = new ASCIIEncoding ();
string szBuffer= oObj.GetString (aBytes,0,aBytes.GetLength(0));
sourceRichEdit.AppendText (szBuffer);
}
public static void LoadText (TextBoxBase sourceRichEdit, string []lineArray)
{
if (sourceRichEdit == null) throw new NolmeArgumentNullException ();
if (lineArray == null) throw new NolmeArgumentNullException ();
sourceRichEdit.Clear ();
for (int i = 0; i < lineArray.Length; i++)
{
sourceRichEdit.AppendText (lineArray[i]);
sourceRichEdit.AppendText (StringUtility.CreateLinefeedString ());
}
}
public static void LoadText (TextBoxBase sourceRichEdit, ArrayList arrayList)
{
if (sourceRichEdit == null) throw new NolmeArgumentNullException ();
if (arrayList == null) throw new NolmeArgumentNullException ();
sourceRichEdit.Clear ();
//Win32RichEditUtility.BeginUpdate (sourceRichEdit);
for (int i = 0; i < arrayList.Count; i++)
{
sourceRichEdit.AppendText (arrayList[i].ToString ());
sourceRichEdit.AppendText (StringUtility.CreateLinefeedString ());
//Win32RichEditUtility.AddTextLine (sourceRichEdit, arrayList[i].ToString (), Color.Black, 8, false, false, false, false);
}
//Win32RichEditUtility.EndUpdate (sourceRichEdit);
}
private void ClrText(TextBoxBase ctl)
{
if(ctl.InvokeRequired)
{
ClrTextCallback d = new ClrTextCallback(ClrText);
this.Invoke(d, new object[] { ctl });
}
else
{
ctl.Clear();
}
}
/// <summary>附加文本到文本控件末尾。主要解决非UI线程以及滚动控件等问题</summary>
/// <param name="txt">控件</param>
/// <param name="msg">消息</param>
/// <param name="maxLines">最大行数。超过该行数讲清空控件</param>
/// <returns></returns>
public static TextBoxBase Append(this TextBoxBase txt, String msg, Int32 maxLines = 1000)
{
if (txt.IsDisposed)
{
return(txt);
}
var func = new Action <String>(m =>
{
try
{
if (txt.Lines.Length >= maxLines)
{
txt.Clear();
}
// 记录原选择
var selstart = txt.SelectionStart;
var sellen = txt.SelectionLength;
// 输出日志
if (m != null)
{
//txt.AppendText(m);
// 需要考虑处理特殊符号
//ProcessBell(ref m);
//ProcessBackspace(txt, ref m);
//ProcessReturn(txt, ref m);
m = m.Trim('\0');
// 针对非Windows系统到来的数据，处理一下换行
if (txt is RichTextBox && Environment.NewLine == "\r\n")
{
// 合并多个回车
while (m.Contains("\r\r"))
{
m = m.Replace("\r\r", "\r");
}
//while (m.Contains("\n\r")) m = m.Replace("\n\r", "\r\n");
//m = m.Replace("\r\n", "<TagOfLine>");
m = m.Replace("\r\n", "\n");
//m = m.Replace("\r", "\r\n");
m = m.Replace("\n\r", "\n");
// 单独的\r换成\n
//if (_line.IsMatch(m))
// m = _line.Replace(m, "\n");
m = m.Replace("\r", "\n");
//m = m.Replace("\r", null);
//m = m.Replace("<TagOfLine>", "\r\n");
}
if (String.IsNullOrEmpty(m))
{
return;
}
txt.AppendText(m);
}
// 如果有选择，则不要滚动
if (sellen > 0)
{
// 恢复选择
if (selstart < txt.TextLength)
{
sellen = Math.Min(sellen, txt.TextLength - selstart - 1);
txt.Select(selstart, sellen);
txt.ScrollToCaret();
}
return;
}
txt.Scroll();
}
catch { }
});
//txt.Invoke(func, msg);
var ar = txt.BeginInvoke(func, msg);
//ar.AsyncWaitHandle.WaitOne(100);
//if (!ar.AsyncWaitHandle.WaitOne(10))
// txt.EndInvoke(ar);
return(txt);
}
/// <summary>附加文本到文本控件末尾。主要解决非UI线程以及滚动控件等问题</summary>
/// <param name="txt">控件</param>
/// <param name="msg">消息</param>
/// <param name="maxLines">最大行数。超过该行数讲清空控件</param>
/// <returns></returns>
public static TextBoxBase Append(this TextBoxBase txt, String msg, Int32 maxLines = 1000)
{
if (txt.IsDisposed)
{
return(txt);
}
var func = new Action <String>(m =>
{
try
{
if (txt.Lines.Length >= maxLines)
{
txt.Clear();
}
// 记录原选择
var selstart = txt.SelectionStart;
var sellen = txt.SelectionLength;
// 输出日志
if (m != null)
{
//txt.AppendText(m);
// 需要考虑处理特殊符号
//ProcessBell(ref m);
//ProcessBackspace(txt, ref m);
//ProcessReturn(txt, ref m);
m = m.Trim('\0');
if (String.IsNullOrEmpty(m))
{
return;
}
txt.AppendText(m);
}
// 如果有选择，则不要滚动
if (sellen > 0)
{
// 恢复选择
if (selstart < txt.TextLength)
{
sellen = Math.Min(sellen, txt.TextLength - selstart - 1);
txt.Select(selstart, sellen);
txt.ScrollToCaret();
}
return;
}
txt.Scroll();
}
catch { }
});
//txt.Invoke(func, msg);
var ar = txt.BeginInvoke(func, msg);
//ar.AsyncWaitHandle.WaitOne(100);
//if (!ar.AsyncWaitHandle.WaitOne(10))
// txt.EndInvoke(ar);
return(txt);
}
