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C# TextPointer.SetLogicalDirection方法代码示例

本文整理汇总了C#中System.Windows.Documents.TextPointer.SetLogicalDirection方法的典型用法代码示例。如果您正苦于以下问题:C# TextPointer.SetLogicalDirection方法的具体用法?C# TextPointer.SetLogicalDirection怎么用?C# TextPointer.SetLogicalDirection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System.Windows.Documents.TextPointer的用法示例。


在下文中一共展示了TextPointer.SetLogicalDirection方法的1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: GetLineStartPosition

        /// <summary>
        /// Returns a TextPointer at the start of line after skipping
        /// a given number of line starts in forward or backward direction.
        /// </summary>
        /// <param name="count">
        /// Offset of the destination line.  Negative values specify preceding
        /// lines, zero specifies the current line, positive values specify
        /// following lines.
        /// </param>
        /// <param name="actualCount">
        /// The offset of the line moved to.  This value may be less than
        /// requested if the beginning or end of document is encountered.
        /// </param>
        /// <returns>
        /// TextPointer positioned at the begining of a line requested
        /// (with LogicalDirection set to Forward).
        /// If there is no sufficient lines in requested direction,
        /// returns a position at the beginning of a farthest line
        /// in this direction. In such case out parameter actualCount
        /// gets a number of lines actually skipped.
        /// Unlike the other override in this case the returned pointer is never null.
        /// </returns>
        /// <remarks>
        /// If this TextPointer is at an otherwise ambiguous position, exactly
        /// between two lines, the LogicalDirection property is used to determine
        /// current position.  So a TextPointer with backward LogicalDirection
        /// is considered to be at the end of line, and calling MoveToLineBoundary(0)
        /// would reposition it at the start of the preceding line.  Making the
        /// same call with forward LogicalDirection would leave the TextPointer
        /// positioned where it started -- at the start of the following line.
        /// </remarks>
        public TextPointer GetLineStartPosition(int count, out int actualCount)
        {
            this.ValidateLayout();

            TextPointer position = new TextPointer(this);

            if (this.HasValidLayout)
            {
                actualCount = position.MoveToLineBoundary(count);
            }
            else
            {
                actualCount = 0;
            }

            position.SetLogicalDirection(LogicalDirection.Forward);
            position.Freeze();

            return position;
        }
开发者ID:mind0n,项目名称:hive,代码行数:51,代码来源:TextPointer.cs


注:本文中的System.Windows.Documents.TextPointer.SetLogicalDirection方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。