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You can use a database table as a data source for a WordWriter template by passing the SetDataSource method a DataTable, a DataSet, an SqlDataReader, OleDbDataReader or an AdomdDataReader. If the specified data source contains more than one row, SetDataSource will use the first row of the first table as the data source. To import multiple rows from data |
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Import the System.Data namespace for DataTable and DataSet objects. Import System.Data.SqlClient for SQL Server-specific database classes, or System.Data.OleDb for the OLEDB client and connections to other databases such as Microsoft Access .MDB files.
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The following code example shows how to query the AdventureWorks2000 database and return the data as a DataSet object. The DataSet object is then used as the data source in a WordTemplate document:
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void GenerateDocument(int employeeID)
{
//--- Query the database
DataTable dt = new DataTable();
using(SqlConnection conn = new SqlConnection(connString))
{
string sql =
"SELECT FirstName, LastName FROM Employee WHERE EmployeeId = @id";
SqlCommand cmd =
new SqlCommand(sql, conn);
//--- Use the employee ID as a SQL parameter
cmd.Parameters.Add("@id", employeeID);
SqlDataAdapter adpt = new SqlDataAdapter(cmd);
adpt.Fill(dt);
}
//--- Use a DataTable as the data source
WordTemplate wt = new WordTemplate();
wt.Open(templatePath);
wt.SetDataSource(dt);
wt.Process();
wt.Save(Page.Response, "DatabaseOutput.doc", false);
}
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Private Sub GenerateDocument(ByVal employeeID As Integer)
'--- Query the database
Dim dt As New DataTable()
Dim conn As New SqlConnection(connString)
Dim sql As String = _
"SELECT FirstName, LastName FROM Employee WHERE EmployeeId = @id"
Try
Dim cmd As New SqlCommand(sql, conn)
'--- Use the employee ID as a SQL parameter
cmd.Parameters.Add("@id", employeeID)
Dim adpt As New SqlDataAdaptercmd)
adpt.Fill(dt)
Finally
If Not conn Is Nothing Then
conn.Dispose()
End If
End Try
'--- Use a DataTable as the data source
Dim wt As New WordTemplate()
wt.Open(templatePath)
wt.SetDataSource(dt)
wt.Process()
wt.Save(Page.Response, "DatabaseOutput.doc", False)
End Sub
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SqlDataReader, OleDbDataReaders and AdomdDataReader are also available for use by WordTemplate. Remember that unlike DataSet and DataTable objects, DataReader objects require an open connection to the database while reading data. Remember to close SqlDataReader, OleDbDataReader or AdomdDataReader objects calling WordTemplate.Process().
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SqlCommand cmd;
//--- CloseConnection will close the associated connection
//--- when the reader is closed
SqlDataReader rdr = cmd.ExecuteReader(CommandBehavior.CloseConnection);
try
{
WordTempalte wt = new WordTemplate();
wt.Open(templatePath);
wt.SetDataSource(rdr);
wt.Process();
wt.Save(Page.Response, "DataReader.doc", false);
}
finally
{
if(rdr!=null)
rdr.Close();
}
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Dim cmd As SqlCommand
'--- CloseConnection will close the associated connection when
'--- the reader is closed
Dim rdr As SqlDataReader = cmd.ExecuteReader(CommandBehavior.CloseConnection)
Try
Dim wt As New WordTemplate();
wt.Open(templatePath)
wt.SetDataSource(rdr)
wt.Process()
wt.Save(Page.Response, "DataReader.doc", False)
Finally
If Not rdr Is Nothing Then
rdr.Close()
End If
End Try
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