Ｃ＃コード断片/共通/テキストボックスに文字列を追記

  0
  1
  2
  3
  4
  5
  6

public void out(string text){
    txtBox.SelectionStart=txtBox.Text.Length;
    txtBox.SelectionLength=0;
    txtBox.SelectedText=text+"\r\n";
    txtBox.SelectionStart=txtBox.Text.Length;
    txtBox.SelectionLength=0;
}

  0
  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20

private delegate void OutPutDelegate(string text);
OutPutDelegate outdel;
 
public frmMain() {
    outdel=new OutPutDelegate(_output);
}
 
private void _output(string text) {
    if (this.InvokeRequired) {
        Invoke(outdel, new object[] { text });
        return;
    }
    if (txtMain.Text.Length > 32767) {
        txtMain.Text = "";
    }
    txtMain.SelectionStart = txtMain.Text.Length;
    txtMain.SelectionLength = 0;
    txtMain.SelectedText = text + "\r\n";
    txtMain.SelectionStart = txtMain.Text.Length;
    txtMain.SelectionLength = 0;
}