{description}
{excerpt}Sets the specified repeat block's data source to an ADO.NET DataSet. 
{excerpt}
{signature:C#}
 public void SetRepeatBlock(System.Data.DataSet ds, System.String bookmark, int maxRows)
{signature}
{signature:vb.net}
Public Sub SetRepeatBlock(ByVal ds As System.Data.DataSet, ByVal bookmark As String, ByVal maxRows As Integer)
{signature}
{parameters}
{param:ds}The DataSet to use as the data source.
{param}
{param:bookmark}The bookmark name of the template repeat block. The bookmark passed to {{SetRepeatBlock}} must exist in the template Word file. To see a list of template bookmark names: 
# Open the template in Microsoft Word.
# Open the *Edit* menu.
# Select *Go To...*
# Select *Bookmark*.
# Under *Enter bookmark name*, open the drop\-down list of bookmark names.
{param}
{param:maxRows}Specifies the maximum number of repetitions to write to the file. If Next fields are enabled (see [EnableNEXTFields|WordTemplate.EnableNEXTFields]), then the number of rows imported from the data source is {{maxRows\*(numberOfNextFields\+1)}}. If Next fields are not enabled the number of rows imported is equal to the number of repetitions written out. To write the maximum rows available, use the constant [WordTemplate.ALL\_ROWS|WordTemplate.ALL_ROWS].
{param}
{exceptions}
{exception:ArgumentNullException}{{SetRepeatBlock}} will throw this exception if {{null}} \(C\#\) or {{Nothing}} \(VB.NET\) is passed to the method.
{exception}
{exception:ArgumentException}
{exception}
{introducedin:8.4}
{exception:SAException}{{SetRepeatBlock}} will throw this exception if the {{bookmark}} has been set to be  [removed|WordTemplate.BookmarksToRemove].{exception}
{remarks}
A repeat block is a fragment in the template document that will be repeated for each row in a data source. In the template document, repeat blocks are defined by Word bookmarks that contain merge fields.

You can call [SetRepeatBlock|WordTemplate.SetRepeatBlock] several times for a single instance of [WordTemplate]. The repeat block specified by the parameter {{bookmark}} must exist in the template.

If you pass an empty DataSet to {{SetRepeatBlock}} \- by either setting {{maxRows}} to 0 or passing an empty DataSet \- WordWriter will not include the specified repeat block in the generated Word file.

Not all Word features can be included in a repeat block:
{web-only:To see a full chart of limitations, go to our online documentation:}
|| Supported in Repeat Blocks || Not Supported in Repeat Blocks ||
| * Character Formatting  (everywhere)
* Paragraph Formatting (Alignment, Outlines, Indent, Spacing, Page Break before, Keep Together)
* Multiple Columns (2, 3, Column Breaks)
* Borders and Shading
* Tabs
* Bullets
* Numbering (numbering not reset, it is continued from one repeat block to another)
* Page Breaks
* Section Breaks
* Auto Text Field
* Hyperlink
* Pictures
* Table Row Repeat (entire row only)
* Fields (with some restrictions) | * Nested repeat blocks (Only one data source may be assigned to a single repeat block.)
* Overlapping bookmarks
* Comments
* Drawing Objects
* Text Boxes
* Footnote and endnote references
* Table and picture indexes
* Single cell in a table
* Smart tags (smart tags will be removed from the document)
* Repeat blocks in headers, footers, footnotes, comments,  text boxes, etc. |
{web-only}
{remarks}
{example}{code:csharp|title=C#}

          //--- A dataset with the data to be repeated
          DataSet ds = GetDataSet();
          WordTemplate oWW = new WordTemplate();
          oWW.Open("c:\\template.doc");

          //--- Set a data source for the repeat block
          //--- defined by the bookmark "Page"
          //--- "ds" is the DataSet containing the data to be
          //--- imported and repeated in the repeat block
          //--- The first DataTable in the DataSet will be used
          //--- Set MaxRows to 10.  No matter how many DataRows
          //--- are in the DataSet, only 10 will be imported
          oWW.SetRepeatBlock(ds, "Page", 10);
          oWW.Process();
          oWW.Save(Page.Response, "Output.doc", false);
        {code}
{code:vb.net|title=vb.net}

          '--- A dataset with the data to be repeated
          Dim ds As DataSet = GetDataSet()
          Dim oWW As New WordTemplate()
          oWW.Open("c:\template.doc")

          '--- Set a data source for the repeat block
          '--- defined by the bookmark "Page"
          '--- "ds" is the DataSet containing the data to be
          '--- imported and repeated in the repeat block
          '--- The first DataTable in the DataSet will be used
          '--- Set MaxRows to 10.  No matter how many DataRows
          '--- are in the DataSet, only 10 will be imported
          oWW.SetRepeatBlock(ds, "Page", 10)
          oWW.Process()
          oWW.Save(Page.Response, "Output.doc", False)
        {code}

{example}