一、序论
WPF文档分为两大类,固定文档和流文档。固定文档的容器是DocumentViewer,流文档的容器时FlowDocumentReader、FlowDocumentPageViewer和FlowDocumentScrollViewer,本文主要流文档。
- FlowDocumentReader:该容器显示整个文档,内容太多时自动使用滚动条移动文档,不支持分页和多列显示。
- FlowDocumentPageViewer:该容器将流文档分成多页,FlowDocumentPageViewer的开销比FlowDocumentReader大。
- FlowDocumentScrollViewer:允许滚动和分页,开销最大。
WPF流内容元素构成流文档,它主要由以下2部分组成:
Block元素(块元素)用于分组其他内容元素。
- List
- Paragraph
- Section
- Table
- BlockUIContainer
Inline元素(内联元素)被嵌入到块级别元素的内联级别元素
- Run
- Span
- LineBreak
- InlineUIContainer
- AchhoredBlock(Figure和Floater)
二、Block元素
设置内容元素格式的常用属性:LineHeight:为嵌套的文本内容设置行间距;TextAlignment:为嵌套的文本内容设置水平对齐方式(可以说Left、Right、Center)。
1.Paragraph它表示文本段落,技术上说段落不包含文本--而是包含内联级别元素的集合,存储在Paragraph.Inline集合中。
<FlowDocumentScrollViewer> <FlowDocument> <Paragraph>Hello this is China</Paragraph> <Paragraph>This is a second paragraph</Paragraph> </FlowDocument> </FlowDocumentScrollViewer>
2.List元素表示项目符号或数字列表,可以通过MarkerStyle属性进行选择。
<Paragraph>Top program language</Paragraph> <List> <ListItem> <Paragraph>C#</Paragraph> <Paragraph>C++</Paragraph> </ListItem> </List> <Paragraph>To-do List</Paragraph> <List MarkerStyle="Decimal"> <ListItem> <Paragraph>WPF</Paragraph> </ListItem> <ListItem> <Paragraph>Winform</Paragraph> </ListItem> </List>
3.Table元素
<Table BorderBrush="Black" BorderThickness="1"> <Table.Columns> <TableColumn Width="*"/> <TableColumn Width="3*"/> <TableColumn Width="*"/> </Table.Columns> <TableRowGroup Paragraph.TextAlignment="Left"> <TableRow FontWeight="Bold"> <TableCell BorderBrush="Black" BorderThickness="1"> <Paragraph>Rank</Paragraph> </TableCell> <TableCell> <Paragraph>Name</Paragraph> </TableCell> <TableCell> <Paragraph>Population</Paragraph> </TableCell> </TableRow> <TableRow> <TableCell> <Paragraph>1</Paragraph> </TableCell> <TableCell> <Paragraph>Rome</Paragraph> </TableCell> <TableCell> <Paragraph>1000000</Paragraph> </TableCell> </TableRow> <TableRow> <TableCell> <Paragraph>1</Paragraph> </TableCell> <TableCell> <Paragraph>Luoyang(HuNan),China</Paragraph> </TableCell> <TableCell> <Paragraph>3210000</Paragraph> </TableCell> </TableRow> <TableRow> <TableCell> <Paragraph>1</Paragraph> </TableCell> <TableCell> <Paragraph>Peshawar,pkeuysd</Paragraph> </TableCell> <TableCell> <Paragraph>1003400</Paragraph> </TableCell> </TableRow> </TableRowGroup> </Table>View Code
注:在没有为列提供明确的宽度时,wpf将为所有列平均分配空间。
4.Section元素
Section元素本身没有任何内置的格式化设置,而是用于在某个方便的包中封装其他块级别元素,方便为整个部分应用常用格式。
<Section FontSize="20" Background="RED" Paragraph.LineHeight="1">
<Paragraph>this is first paragraph</Paragraph>
<Paragraph>this is second paragraph</Paragraph>
</Section>
5.BlockUIContainer元素
用来放控件。
<BlockUIContainer> <Button HorizontalAlignment="Left" Name="hhhh" Content="this is BlockUIContainer"/> </BlockUIContainer>
三、内联元素
1.Floater