如何制作可根据文本自动调整的 pdftable

Question

我正在处理 winforms，需要创建一个 pdf 页面，用户可以在其中输入他的详细信息，我的代码是：

    PdfPCell first_form1 = new PdfPCell();


        first_form1.AddElement(new Phrase("6)  Complete  Postal  Address " + "\n\n", normalFontBold));
        first_form1.AddElement(new Phrase("7)  Date  of  Birth(Proof in the form of birth certificate or school certificate or medical certificate indicating age) " + "\n\n", normalFontBold));
        first_form1.AddElement(new Phrase("8)  Age (in complete years) as on the date of marriage " + "\n\n", normalFontBold));
        first_form1.AddElement(new Phrase("9)  Date  Of  Marriage " + "\n\n", normalFontBold));
        first_form1.AddElement(new Phrase("10)  Place  Of  Marriage " + "\n\n", normalFontBold));


        PdfPCell second_form1 = new PdfPCell();

        second_form1.AddElement(new Phrase(boy_address + "\n\n", normalFontBold));
        second_form1.AddElement(new Phrase(boy_dob + "\n\n\n\n", normalFontBold));
        second_form1.AddElement(new Phrase(boy_age + "\n\n\n", normalFontBold));
        second_form1.AddElement(new Phrase(date_0f_mrg + "\n\n", normalFontBold));
        second_form1.AddElement(new Phrase(place_of_mrg + "\n\n", normalFontBold));

        PdfPCell third_form1 = new PdfPCell();
        third_form1.AddElement(new Phrase(girl_address + "\n\n", normalFontBold));
        third_form1.AddElement(new Phrase(girl_dob + "\n\n\n\n", normalFontBold));
        third_form1.AddElement(new Phrase(girl_age + "\n\n\n", normalFontBold));
        third_form1.AddElement(new Phrase(date_0f_mrg + "\n\n", normalFontBold));
        third_form1.AddElement(new Phrase(place_of_mrg + "\n\n", normalFontBold));

        detailsTable_form1.AddCell(first_form1);
        detailsTable_form1.AddCell(second_form1);
        detailsTable_form1.AddCell(third_form1);

// 如果我的地址几乎相等的字符，那么它打印得很好，但是如果我的男孩地址太大，假设它有超过 100 个字符，那么接下来的行的顺序将会改变

Answer 1

我假设您有一个包含三列的表格：

PdfPTable table = new PdfPTable(3);

您想在此表中添加行，但不是添加行，而是仅添加三个单元格，并且您试图通过使用 \n 字符来模仿行。这是个坏主意。你应该这样做：

// row 1
PdfPCell first_form1 = new PdfPCell();
first_form1.AddElement(new Phrase("6)  Complete  Postal  Address ", normalFontBold));
table.AddCell(first_form1);
PdfPCell second_form1 = new PdfPCell();
second_form1.AddElement(new Phrase(boy_address, normalFontBold));
table.AddCell(second_form1);
PdfPCell third_form1 = new PdfPCell();
third_form1.AddElement(new Phrase(girl_address, normalFontBold));
table.AddCell(third_form1);
// row 2
first_form1 = new PdfPCell();
first_form1.AddElement(new Phrase("7)  Date  of  Birth(Proof in the form of birth certificate or school certificate or medical certificate indicating age) ", normalFontBold));
table.AddCell(first_form1);
second_form1 = new PdfPCell();
second_form1.AddElement(new Phrase(boy_dob, normalFontBold));
table.AddCell(second_form1);
third_form1 = new PdfPCell();
third_form1.AddElement(new Phrase(girl_dob, normalFontBold));
table.AddCell(third_form1);
// row 3
first_form1 = new PdfPCell();
first_form1.AddElement(new Phrase("8)  Age (in complete years) as on the date of marriage ", normalFontBold));
table.AddCell(first_form1);
second_form1 = new PdfPCell();
second_form1.AddElement(new Phrase(boy_age, normalFontBold));
table.AddCell(second_form1)
third_form1 = new PdfPCell();
third_form1.AddElement(new Phrase(girl_age, normalFontBold));
table.AddCell(third_form1);;
// row 4
first_form1 = new PdfPCell();
first_form1.AddElement(new Phrase("9)  Date  Of  Marriage " + "\n\n", normalFontBold));
table.AddCell(first_form1);
second_form1 = new PdfPCell();
second_form1.AddElement(new Phrase(date_0f_mrg, normalFontBold));
table.AddCell(second_form1);
third_form1 = new PdfPCell();
third_form1.AddElement(new Phrase(date_0f_mrg, normalFontBold));
table.AddCell(third_form1);
// row 5
first_form1 = new PdfPCell();
first_form1.AddElement(new Phrase("10)  Place  Of  Marriage " + "\n\n", normalFontBold));
table.AddCell(first_form1);
second_form1 = new PdfPCell();
second_form1.AddElement(new Phrase(place_of_mrg, normalFontBold));
table.AddCell(second_form1);
third_form1 = new PdfPCell();
third_form1.AddElement(new Phrase(place_of_mrg, normalFontBold));
table.AddCell(third_form1);

这就是应该使用表格的方式。现在，如果某些数据太大而无法适应宽度，数据将分布在不同的行上，但不同的行将保持对齐（您的设置中并非如此）。

我删除了\n，但如果您希望行具有最小高度，您可以使用MinimumHeight 属性。例如：

first_form1.MinimumHeight = 48;

在我的代码中，将绘制边框。如果要更改或删除它们，可以使用 Border 属性。例如：

second_form1.Border = Rectangle.NO_BORDER;

如果您希望某些列具有不同的宽度，您可以更改WidthPercentage：

table.WidthPercentage = 100;

以及相对列宽：

float[] widths = new float[] { 1, 2, 2 };
table.SetWidths(widths);

在这种情况下，第 2 列和第 3 列的宽度是第 1 列的两倍。