在iText中动态获取表格高度 [英] Getting table height dynamically in iText

问题描述

在将表格添加到文档之前，有没有一种方法可以获取表格的高度?

Is there a way of getting the height of a table before adding it to the document?

乍一看，由于我知道字体大小，因此我认为表中的行数足以计算高度.但是，有些行违反了该规则.例如，一个单元格可能存储具有多行的段落.因此，我需要知道的是每一行的总高度.

At first glance, I supposed that the number of rows in the table is enough to calculate height since I know the font size. However, some rows break that rule. For instance, one cell might store a paragraph that has more than one line. Hence, what I need to know is the total of the heights of every row.

推荐答案

是的，答案并不复杂.

为了获得桌子的高度，必须首先设置桌子的宽度.换句话说，

In order to get the height of a table, one must set the width of the table first. In other words,

table.setTotalWidth((PageSize.A4.getWidth() - document.leftMargin()
- document.rightMargin()) * table.getWidthPercentage() / 100);

System.out.println(table.calculateHeights());

给出桌子的高度.

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