本文整理汇总了C#中System.Windows.Documents.TextRange.LastIndexOf方法的典型用法代码示例。如果您正苦于以下问题：C# TextRange.LastIndexOf方法的具体用法？C# TextRange.LastIndexOf怎么用？C# TextRange.LastIndexOf使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.Windows.Documents.TextRange的用法示例。
在下文中一共展示了TextRange.LastIndexOf方法的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: adornedElement_PreviewKeyUp
private void adornedElement_PreviewKeyUp(object sender, KeyEventArgs e)
{
if ((this.richTextBox != null) && (((e != null) && (e.Key == Key.Space)) || ((e == null) && this.performURLParsing)))
{
bool isWWWPrefixed;
this.performURLParsing = false;
string text = new TextRange(this.richTextBox.Document.ContentStart, this.richTextBox.Document.ContentEnd).Text;
string str2 = new TextRange(this.richTextBox.Document.ContentStart, this.richTextBox.CaretPosition).Text;
int length = str2.Length;
if (((length - 1) <= text.Length) && (length != 0))
{
int startIndex = -1;
if ((length - 2) >= 0)
{
startIndex = text.LastIndexOf("http://", (int)(length - 2));
startIndex = (startIndex == -1) ? text.LastIndexOf("https://", (int)(length - 2)) : startIndex;
startIndex = (startIndex == -1) ? (startIndex = text.LastIndexOf("www.", (int)(length - 2))) : startIndex;
}
if (startIndex == -1)
{
startIndex = 0;
}
if (str2.Substring(0, str2.Length - 1).EndsWith("\r\n"))
{
startIndex = length - 1;
}
this.lastWord = text.Substring(startIndex, length - startIndex);
isWWWPrefixed = false;
int num3 = this.lastWord.LastIndexOf("http://");
num3 = (num3 == -1) ? this.lastWord.LastIndexOf("https://") : num3;
if (num3 == -1)
{
num3 = this.lastWord.LastIndexOf("www.");
isWWWPrefixed = true;
}
if (num3 != -1)
{
string url;
ContextMenu buttonContextMenu;
Button button;
MenuItem expandContractMenuItem;
MenuItem gotoLinkMenuitem;
Func<string> shortenURLDelegate;
int index = this.lastWord.IndexOf(' ', num3);
if (index != -1)
{
url = this.lastWord.Substring(num3, index - num3);
int num5 = url.Length;
if (isWWWPrefixed)
{
num5 += "http://".Length;
}
if ((num5 >= this.URL_LENGTH_THRESHOLD) && !this.IsAlreadyShortened(url))
{
int x = text.IndexOf(url) - GetInlineUIContainerCountUpToPointer(this.richTextBox, this.richTextBox.CaretPosition);
TextPointer start = new TextRange(GetPoint(this.richTextBox.Document.ContentStart, x), this.richTextBox.Document.ContentEnd).Start;
start.DeleteTextInRun(url.Length);
buttonContextMenu = new ContextMenu();
button = new Button();
button.SetResourceReference(FrameworkElement.StyleProperty, "URLButton");
button.Content = "shortening...";
button.Click += delegate(object s, RoutedEventArgs e2)
{
buttonContextMenu.PlacementTarget = button;
buttonContextMenu.Placement = PlacementMode.Bottom;
buttonContextMenu.IsOpen = true;
};
expandContractMenuItem = new MenuItem
{
Header = "Expand link",
IsEnabled = false
};
gotoLinkMenuitem = new MenuItem
{
Header = "Open link in browser",
IsEnabled = false
};
buttonContextMenu.Items.Add(gotoLinkMenuitem);
buttonContextMenu.Items.Add(expandContractMenuItem);
InlineUIContainer container = new InlineUIContainer(button, start);
shortenURLDelegate = delegate
{
Dictionary<string, string> dictionary = new Dictionary<string, string>();
if (CoreServices.Instance.CurrentURLShorteningService(this.TwitterAccountID) != null)
{
string key = CoreServices.Instance.CurrentURLShorteningService(this.TwitterAccountID).Name;
if (!App.ShortenedURLCache.ContainsKey(key))
{
Dictionary<string, string> dictionary2 = new Dictionary<string, string>();
App.ShortenedURLCache.Add(key, dictionary2);
dictionary = dictionary2;
}
else
{
dictionary = App.ShortenedURLCache[key];
}
}
string text1 = url;
if (isWWWPrefixed)
{
//.........这里部分代码省略.........
示例2: InsertSelectedEntry
private void InsertSelectedEntry(char characterInsertion)
{
if (this.intellisenseListBox.SelectedIndex <= -1 || !this.intellisensePopup.IsOpen)
return;
string text = new TextRange(this.richTextBox.Document.ContentStart, this.richTextBox.CaretPosition).Text;
int startIndex = text.LastIndexOf(' ');
string currentWord = startIndex != -1 ? text.Substring(startIndex).TrimStart(new char[0]) : text.TrimStart(new char[0]);
IntellisenseItem intellisenseItem = this.intellisenseListBox.SelectedItem as IntellisenseItem;
bool flag = text.StartsWith("d ", StringComparison.InvariantCultureIgnoreCase) && !IntellisenseAdorner.DM_EXPRESSION_WITH_END_SPACE.IsMatch(text);
string textData = this.IgnorePrefix || flag ? intellisenseItem.FilterValue : intellisenseItem.DisplayValue;
if (textData.StartsWith("@") || textData.StartsWith("#"))
{
int charactersToDelete = IntellisenseAdorner.GetNumberOfCharactersToDelete(currentWord, textData.StartsWith("@") ? "@" : "#");
if (currentWord.EndsWith(" "))
this.richTextBox.CaretPosition.DeleteTextInRun(-(charactersToDelete - 1));
else
this.richTextBox.CaretPosition.DeleteTextInRun(-charactersToDelete);
}
else if (currentWord.EndsWith(" "))
this.richTextBox.CaretPosition.DeleteTextInRun(-(currentWord.Length - 1));
else
this.richTextBox.CaretPosition.DeleteTextInRun(-currentWord.Length);
if ((int)characterInsertion != 0 && !this.IgnorePrefix)
textData = textData + (object)characterInsertion;
this.richTextBox.CaretPosition = this.richTextBox.CaretPosition.GetPositionAtOffset(0, LogicalDirection.Forward) ?? this.richTextBox.CaretPosition;
if (!flag)
{
this.richTextBox.CaretPosition.InsertTextInRun(textData);
}
else
{
this.richTextBox.CaretPosition.InsertTextInRun(textData);
Messenger.Default.Send<GenericMessage<object>>(new GenericMessage<object>((object)intellisenseItem.FilterValue), (object)CommonCommands.MultiAccountifyToken((Enum)ViewModelMessages.DirectMessage, intellisenseItem.TwitterAccountID));
}
this.ignoreDisplay = true;
}示例3: richTextBox_PreviewKeyUp
private void richTextBox_PreviewKeyUp(object sender, KeyEventArgs e)
{
if (((e.Key != Key.Up) && (e.Key != Key.Down)) && ((e.Key != Key.Space) || !this.IgnorePrefix))
{
if ((e.Key == Key.Space) || (e.Key == Key.Escape))
{
this.HideMethodsPopup();
}
if (((((e.Key == Key.Escape) || (e.Key == Key.Left)) || ((e.Key == Key.Right) || (e.Key == Key.Return))) || ((this.IgnorePrefix && (e.Key == Key.D2)) && (Keyboard.Modifiers == ModifierKeys.Shift))) || this.ignoreDisplay)
{
this.HideMethodsPopup();
this.ignoreDisplay = false;
}
else
{
IEnumerable<IntellisenseItem> results = null;
string text = new TextRange(this.richTextBox.Document.ContentStart, this.richTextBox.CaretPosition).Text;
int startIndex = text.LastIndexOf(' ');
string input = (startIndex != -1) ? text.Substring(startIndex).TrimStart(new char[0]) : text.TrimStart(new char[0]);
if (((input == "@") || (input == "#")) && this.IgnorePrefix)
{
this.HideMethodsPopup();
this.ignoreDisplay = false;
}
else if (!(this.ExcludeMentions || (((input != "@") && !input.EndsWith("@")) && !(text == "d "))))
{
results = IntellisenseDataSource.Instance(this.TwitterAccountID).MentionsCollection.GetMatches("@");
Rect rect = this.richTextBox.CaretPosition.GetCharacterRect(LogicalDirection.Forward);
this.BindResults(results, this.intellisenseListBox, rect, IntellisenseDataSource.Instance(this.TwitterAccountID).MentionsCollection.ContainsEntries, delegate
{
this.ShowMethodsPopup(rect, this.richTextBox);
this.intellisenseListBox.SelectedIndex = -1;
});
}
else if ((input == "#") || input.EndsWith("#"))
{
results = IntellisenseDataSource.Instance(this.TwitterAccountID).TagsCollection.GetMatches("#");
Rect rect = GetPoint(this.richTextBox.Document.ContentStart, startIndex).GetCharacterRect(LogicalDirection.Forward);
this.BindResults(results, this.intellisenseListBox, rect, IntellisenseDataSource.Instance(this.TwitterAccountID).TagsCollection.ContainsEntries, delegate
{
this.ShowMethodsPopup(rect, this.richTextBox);
this.intellisenseListBox.SelectedIndex = -1;
});
}
else if (!(this.ExcludeMentions || (!MENTION_EXPRESSION.IsMatch(input) && !this.IgnorePrefix)))
{
string currentWordExcludingPrefix = string.Empty;
currentWordExcludingPrefix = this.IgnorePrefix ? input : MENTION_EXPRESSION.Match(input).Groups[1].Value;
results = IntellisenseDataSource.Instance(this.TwitterAccountID).MentionsCollection.GetMatches(currentWordExcludingPrefix);
Rect rect = GetPoint(this.richTextBox.Document.ContentStart, startIndex).GetCharacterRect(LogicalDirection.Forward);
this.BindResults(results, this.intellisenseListBox, rect, IntellisenseDataSource.Instance(this.TwitterAccountID).MentionsCollection.ContainsEntries, delegate
{
this.ShowMethodsPopup(rect, this.richTextBox);
this.SetSelection(currentWordExcludingPrefix);
});
}
else if (!((this.ExcludeMentions || !DM_EXPRESSION.IsMatch(text)) || DM_EXPRESSION_WITH_END_SPACE.IsMatch(text)))
{
string currentWordExcludingPrefix = DM_EXPRESSION.Match(text).Groups[1].Value;
results = IntellisenseDataSource.Instance(this.TwitterAccountID).MentionsCollection.GetMatches(currentWordExcludingPrefix);
Rect rect = GetPoint(this.richTextBox.Document.ContentStart, startIndex).GetCharacterRect(LogicalDirection.Forward);
this.BindResults(results, this.intellisenseListBox, rect, IntellisenseDataSource.Instance(this.TwitterAccountID).MentionsCollection.ContainsEntries, delegate
{
this.ShowMethodsPopup(rect, this.richTextBox);
this.SetSelection(currentWordExcludingPrefix);
});
}
else if (TAG_EXPRESSION.IsMatch(input))
{
string partialWord = TAG_EXPRESSION.Match(input).Groups[1].Value;
results = IntellisenseDataSource.Instance(this.TwitterAccountID).TagsCollection.GetMatches(partialWord);
Rect rect = GetPoint(this.richTextBox.Document.ContentStart, startIndex).GetCharacterRect(LogicalDirection.Forward);
this.BindResults(results, this.intellisenseListBox, rect, IntellisenseDataSource.Instance(this.TwitterAccountID).TagsCollection.ContainsEntries, delegate
{
this.ShowMethodsPopup(rect, this.richTextBox);
this.intellisenseListBox.SelectedIndex = -1;
});
}
else
{
this.HideMethodsPopup();
}
}
}
}示例4: rtbEdit_PreviewKeyDown
private void rtbEdit_PreviewKeyDown(object sender, KeyEventArgs e)
{
timer.Interval = COUNTDOWN;
if (e.Key == Key.V && (Keyboard.Modifiers & (ModifierKeys.Control)) == (ModifierKeys.Control))
{
if (Clipboard.ContainsImage())
{
e.Handled = true;
BitmapSource bitmap = Clipboard.GetImage();
PngBitmapEncoder pE = new PngBitmapEncoder();
string tempFile = Path.GetTempFileName();
pE.Frames.Add(BitmapFrame.Create(bitmap));
using (Stream stream = File.Create(tempFile))
{
pE.Save(stream);
}
Helper.ImageHelper.InsertImg(rtbEdit, tempFile);
File.Delete(tempFile);
}
}
else
{
string strText = new TextRange(rtbEdit.Document.ContentStart, rtbEdit.Document.ContentEnd).Text;
if (strText.LastIndexOf("\r\n") > 0)
{
strText = strText.Remove(strText.LastIndexOf("\r\n"));
}
if (strText.Length <= 0) return;
int titleEnd = strText.IndexOf("\r\n");
if (titleEnd > 31 || titleEnd < 0) titleEnd = 0;
strText = strText.Remove(0, titleEnd);
int count = Regex.Matches(strText, @"[^\s]").Count;
if (count <= 0) return;
tbCount.Text = count + "";
if (count > countAll + 10 || count < countAll - 10)
{
countAll = count;
SaveAndUpdate();
}
}
}