private PasteEventArgs CheckPasteValid()
{
// Default values.
PasteRejectReasons rejectReason = PasteRejectReasons.Accepted;
string originalText = Text;
string clipboardText = string.Empty;
string textResult = string.Empty;
try
{
clipboardText = Clipboard.GetText(TextDataFormat.Text);
if (clipboardText.Length > 0)
{
textResult = (
Text.Remove(SelectionStart, SelectionLength).Insert(SelectionStart, clipboardText));
if (clipboardText.Any(c => !char.IsDigit(c)))
{
rejectReason = PasteRejectReasons.InvalidCharacter;
}
}
else
{
rejectReason = PasteRejectReasons.NoData;
}
}
catch
{
rejectReason = PasteRejectReasons.Unknown;
}
return(new PasteEventArgs(originalText, clipboardText, textResult, rejectReason));
}
public PasteEventArgs(string originalText, string clipboardText, string textResult,
PasteRejectReasons rejectReason)
{
mOriginalText = originalText;
mClipboardText = clipboardText;
mTextResult = textResult;
mRejectReason = rejectReason;
}
/// <summary>
/// Checks if the data on the clipboard contains text that is valid.
/// </summary>
/// <returns>A PasteEventArgs instance containing the relevant data.</returns>
private PasteEventArgs CheckPasteValid()
{
// Default values.
PasteRejectReasons rejectReason = PasteRejectReasons.Accepted;
string originalText = Text;
string clipboardText = string.Empty;
string textResult = string.Empty;
try
{
clipboardText = Clipboard.GetText(TextDataFormat.Text);
if (clipboardText.Length > 0) // Does clipboard contain text?
{
// Store text value as it will be post paste assuming it is valid.
textResult = (
Text.Remove(SelectionStart, SelectionLength).Insert(SelectionStart, clipboardText));
foreach (char c in clipboardText) // Check for any non digit characters.
{
bool IsHex = ((c == 'a') || (c == 'A') || (c == 'b') || (c == 'B') ||
(c == 'c') || (c == 'C') || (c == 'd') || (c == 'D') ||
(c == 'e') || (c == 'E') || (c == 'f') || (c == 'F'));
if (!char.IsDigit(c) && !IsHex)
{
rejectReason = PasteRejectReasons.InvalidCharacter;
break;
}
}
}
else
{
rejectReason = PasteRejectReasons.NoData;
}
}
catch
{
rejectReason = PasteRejectReasons.Unknown;
}
return(new PasteEventArgs(originalText, clipboardText, textResult, rejectReason));
}
/// <summary>
/// Creates a new instance of the PasteRejectedEventArgs class.
/// </summary>
/// <param name="originalText">The original textl.</param>
/// <param name="clipboardText">The text from the clipboard.</param>
/// <param name="textResult">The resulting text.</param>
/// <param name="rejectReason">The reason for the paste rejection.</param>
public PasteEventArgs(string originalText, string clipboardText, string textResult,
PasteRejectReasons rejectReason)
{
m_OriginalText = originalText;
m_ClipboardText = clipboardText;
m_TextResult = textResult;
m_RejectReason = rejectReason;
}
