reportviewer untyped dataset
TRANSCRIPT
I was in search of binding a dataset form my application to the reportviewer control on winform/webpage.
The I came across this article and it worked for me. Hope others get through from this too….
Sorce: http://www.topxml.com/rbnews/XML/re-76790_DYNAMIC-BINDING-OF-REPORTVIEWER-CONTROL-TO-
UNTYPED-DATASET.aspx
1. Drop a ReportViewerControl to your favourite webform
2. Drop a new DataSet in the project (DataSet1)
3. Create a DataTable in DataSet's XSD (DataSet1.xsd) which should define the structure of <Books.xml>
I created Table1 which defines 2 types. I guess 2 are enough!!
- Book_ID (of type System.Int32)
- Title (of type System.String)
4. Drop a new RDLC file to project.
You will notice the DataSet1 and DataTable1 being shown in "WebSite Data Sources"
+ DataSet1
- DataTable1
- Book_Id
- Title
5. Drop a table to it.
Drag and drop the Fields ( Fields!Book_ID.Value and Fields!Title.Value)
6. use the CODE LISTING 2 in Page_Load.
NOTE: Pay attention to this line:
Me.ReportViewer1.LocalReport.DataSources.Add(New Microsoft.Reporting.WebForms.ReportDataSource("DataSet1_DataTable1", Dt))
DataSet1_DataTable1 is the link to this hack. We are telling ReportViewer to bind this table "Dt" of ours
(which you might have got from somewhere) to a dataset which is understood by RDLC.
Note: You do not have to chose this RDLC in "ReportViewer Tasks". Which means rsweb:ReportViewer component is free to chose it's local report in runtime. Check the neat rsweb:ReportViewer component in CODE LISTING 3.
Here is how it looks when you bind it in design mode. But these all we are doing in RUN TIME.
<rsweb:ReportViewer ID="ReportViewer1" runat="server" Height="499px" Width="861px" >
<LocalReport ReportPath="Report1.rdlc">
<DataSources>
<rsweb:ReportDataSource DataSourceId="ObjectDataSource1" Name="DataSet1_DataTable1" />
</DataSources>
</LocalReport>
</rsweb:ReportViewer>
<asp:ObjectDataSource ID="ObjectDataSource1" runat="server" SelectMethod="GetData"TypeName="DataSet1TableAdapters."></asp:ObjectDataSource>
CODE LISTING 1: Books.Xml
[XML]
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE BookRoot SYSTEM "E:\Projects\XML TRAINING\Day 1\XML Examples\books.dtd">
<BookRoot>
<Book ISBN="Ind-123-4-5" Date="3.14 mod 5">
<Author AuthID="a1">
<Name WorkedWith="a2">William</Name>
<Location>GB</Location>
</Author>
<Author AuthID="a2">
<Name WorkedWith="a1">Dennis</Name>
<Location>USA</Location>
</Author>
<Title>As you like it</Title>
<Price>100$</Price>
<SoldAt CountryId="GB">GB</SoldAt>
<SoldAt CountryId="US">US</SoldAt>
<SoldAt CountryId="INDIA">India</SoldAt>
<Publisher>Tech Media</Publisher>
</Book>
</BookRoot>
[\XML]
CODE LISTING 2:
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
ReportViewer1.ProcessingMode = ProcessingMode.Local
Dim rep As LocalReport = ReportViewer1.LocalReport
rep.ReportPath = "Report1.rdlc"
' Lets get a dataset
Dim ds As DataSet = New DataSet("DynDS")
ds.ReadXml(HttpContext.Current.Request.MapPath(".\Books.xml"))
Dim Dt As New DataTable()
Dt = ds.Tables(0)
'Table name = Book
Me.ReportViewer1.LocalReport.DataSources.Clear()
Me.ReportViewer1.LocalReport.DataSources.Add(New Microsoft.Reporting.WebForms.ReportDataSource("DataSet1_DataTable1", Dt))
End Sub
CODE LISTING 3: Just for reference, how your aspx page's HTML should look like.(completly unneccesary)
<body>
<form id="form1" runat="server">
<rsweb:ReportViewer ID="ReportViewer1" runat="server" Height="499px" Width="861px">
</rsweb:ReportViewer>
</form>
</body>