Aspose.Pdf for .NET可創建表單對象并且將表單對象置于PDF文檔中。添加表單對象前，我們需要指定列寬信息，單元格中也被加入指定信息。但是， 我們可以在運行時指定列寬信息。當表的寬高比例為100%時，列寬的調整便基于一行中單元格的數量。

　　請大家看看下面的一段代碼，在下面的代碼示例中，我們已經在Section寬度的基礎上調整了單元格的寬度：

[C#]

// create Pdf Instance

Pdf pdf = new Pdf();

        // create section object and add it to pdf object

        Section sec1 = pdf.Sections.Add();

        // create a table instance

        Table mytable = new Table();

        // specify the default border for table object and set its color as Navy

        mytable.DefaultCellBorder = new BorderInfo((int)BorderSide.All, 1f, new Aspose.Pdf.Color("Navy"));

        // specify the border information for table object

        mytable.Border= new BorderInfo((int)BorderSide.All, 1f, new Aspose.Pdf.Color("Navy"));

        // define initial width information for table cells

        mytable.ColumnWidths = "100 100";

        // create a row object and add it to table

        Row row1 = mytable.Rows.Add();

        // create loop to add specify the number of columns to be added to table row

       ; for (int Column_Counter = 1; Column_Counter <=7; Column_Counter++)

        {

  &nbsp; // create a cell object and add it to table row

 &nbsp;  Cell Cell = row1.Cells.Add("Cell (1,"+ Column_Counter.ToString() +")");

        }

        // define the variable to keep record of number of columns in table

        int TableColumn = 0;

  &nbsp;     // traverse through each table cell in row object

    &nbsp;   foreach (Cell InnerCell in row1.Cells)

        {

        // specify the width information for each column based on section objects margin and width values

 ;       // set the width value as, get the total width of section and subtract left and right margin and divide

        // it with total number of cells in a particular table row

        mytable.SetColumnWidth(TableColumn, (sec1.PageInfo.PageWidth - sec1.PageInfo.Margin.Left - sec1.PageInfo.Margin.Right)/ row1.Cells.Count);

     &nbsp;  // increase the value of variable holding the column count information

     &nbsp;  TableColumn += 1;

        }

// add table to paragraphs collection of section

     ;   sec1.Paragraphs.Add(mytable);

        // save the resultant PDF document

     &nbsp;  pdf.Save("d:/pdftest/DynamicTableWidth.pdf");

[VB.NET]

' create Pdf Instance

    &nbsp; &nbsp; Dim pdf As Pdf = New Pdf()

        ' create section object and add it to pdf object

        Dim sec1 As Aspose.Pdf.Section = pdf.Sections.Add()

&nbsp;       ' create a table instance

       ; Dim mytable As Table = New Table()

 &nbsp;      ' specify the default border for table object and set its color as Navy

      &nbsp; mytable.DefaultCellBorder = New BorderInfo(BorderSide.All, 1.0F, New Aspose.Pdf.Color("Navy"))

 &nbsp;      ' specify the border information for table object

        mytable.Border = New BorderInfo(BorderSide.All, 1.0F, New Aspose.Pdf.Color("Navy"))

&nbsp;   &nbsp;   ' define initial width information for table cells

   &nbsp;    mytable.ColumnWidths = "100 100"

    &nbsp;   ' create a row object and add it to table

    &nbsp;   Dim row1 As Row = mytable.Rows.Add()

        ' create loop to add specify the number of columns to be added to table row

  &nbsp;     For Column_Counter As Integer = 1 To 5 Step 1

  &nbsp;       &nbsp; ' create a cell object and add it to table row

         ;   Dim Cell As Cell = row1.Cells.Add("Cell (1," + Column_Counter.ToString() + ")")

        Next

        ' define the variable to keep record of number of columns in table

        Dim TableColumn As Integer = 0

   &nbsp;    ' create a cell object

        Dim InnerCell As Cell

        ' traverse through each table cell in row object

        For Each InnerCell In row1.Cells

      &nbsp;     ' specify the width information for each column based on section objects margin and width values

            ' set the width value as, get the total width of section and subtract left and right margin and divide

         &nbsp;&nbsp; ' it with total number of cells in a particular table row

          ;  mytable.SetColumnWidth(TableColumn, (sec1.PageInfo.PageWidth - sec1.PageInfo.Margin.Left - sec1.PageInfo.Margin.Right) / row1.Cells.Count)

  &nbsp;         ' increase the value of variable holding the column count information

     &nbsp;  &nbsp;   TableColumn += 1

        Next

  &nbsp;     ' add table to paragraphs collection of section

    &nbsp;   sec1.Paragraphs.Add(mytable)

 &nbsp;      ' save the resultant PDF document

        pdf.Save("d:/pdftest/DynamicTableWidth.pdf")