CustomRecognizerNode.GetTextRangeFromNodes 方法
在已识别字符串中查找对应于作为 CustomRecognizerNode 对象后代的 ContextNode 对象集合的文本范围。
命名空间: Microsoft.Ink
程序集: Microsoft.Ink.Analysis(在 Microsoft.Ink.Analysis.dll 中)
语法
声明
Public Sub GetTextRangeFromNodes ( _
subTree As ContextNodeCollection, _
<OutAttribute> ByRef start As Integer, _
<OutAttribute> ByRef length As Integer _
)
用法
Dim instance As CustomRecognizerNode
Dim subTree As ContextNodeCollection
Dim start As Integer
Dim length As Integer
instance.GetTextRangeFromNodes(subTree, _
start, length)
public void GetTextRangeFromNodes(
ContextNodeCollection subTree,
out int start,
out int length
)
public:
void GetTextRangeFromNodes(
ContextNodeCollection^ subTree,
[OutAttribute] int% start,
[OutAttribute] int% length
)
public void GetTextRangeFromNodes(
ContextNodeCollection subTree,
/** @attribute OutAttribute */ /** @ref */int start,
/** @attribute OutAttribute */ /** @ref */int length
)
public function GetTextRangeFromNodes(
subTree : ContextNodeCollection,
start : int,
length : int
)
参数
- subTree
类型:Microsoft.Ink.ContextNodeCollection
ContextNode 对象的集合,这些对象是 CustomRecognizerNode 的后代。
- start
类型:System.Int32%
文本范围的起点。
- length
类型:System.Int32%
文本范围的长度。
备注
如果 subTree 参数包含非 CustomRecognizerNode 后代的 ContextNode 对象,则会引发 ArgumentException 异常。
如果 subTree 参数包含的 ContextNode 对象不连续,则返回涵盖所有 ContextNode 对象的最小文本范围。
示例
下面的示例使用 CustomRecognizerNode (customRecognizer) 并查找最后一行。然后找到对应此行的文本范围,并将 GetRecognizedString 的值放入 TextBox, selectedResultsTextBox,然后选中对应于最后一行的文本。
Dim lines As ContextNodeCollection = _
theInkAnalyzer.FindNodesOfType(Microsoft.Ink.ContextNodeType.Line, customRecognizer)
Dim nLines As Integer = lines.Count
' Create a collection to hold the last line
Dim lastLineCollection As New ContextNodeCollection(theInkAnalyzer)
If nLines > 0 Then
lastLineCollection.Add(lines(nLines - 1))
End If
' Find corresponding start and length
Dim start As Integer
Dim length As Integer
customRecognizer.GetTextRangeFromNodes(lastLineCollection, start, length)
' Select this in the text box
selectedResultsTextBox.Text = customRecognizer.GetRecognizedString()
selectedResultsTextBox.Select(start, length)
ContextNodeCollection lines =
theInkAnalyzer.FindNodesOfType(Microsoft.Ink.ContextNodeType.Line, customRecognizer);
int nLines = lines.Count;
// Create a collection to hold the last line
ContextNodeCollection lastLineCollection = new ContextNodeCollection(theInkAnalyzer);
if (nLines > 0)
{
lastLineCollection.Add(lines[nLines - 1]);
}
// Find corresponding start and length
int start, length;
customRecognizer.GetTextRangeFromNodes(lastLineCollection, out start, out length);
// Select this in the text box
selectedResultsTextBox.Text = customRecognizer.GetRecognizedString();
selectedResultsTextBox.Select(start, length);
平台
Windows Vista
.NET Framework 和 .NET Compact Framework 并不是对每个平台的所有版本都提供支持。有关支持的版本的列表,请参见.NET Framework 系统要求。
版本信息
.NET Framework
受以下版本支持:3.0