创建包含多个表的rdlc报告（一对多关系）

Question

So, I'm new to rdlc (and reporting in general actually). I have a table that has a one-to-many relationship with another table, and I'm trying to represent them in an rdlc report as multiple tables for each item .

Note: The tables are originally created using Entity Framework code-first .

Here are the two tables (and the parent one) :

Now, normally if I only have the [Quotation] and some [QuotationItem] s, I'd just add the info from the [Quotation] on the top of the report, and the info from each [QuotationItem] would be represented in a row inside a table (Tablix).

The problem is : Each [QuotationItem] also has many of [QuotationItemQuantity] (currently three), and they need to be represented too.

So, my report should look something like this:

But I'm stuck on how to display multiple tables (or a list and tables) for each item (QuotationItem). I tried nested tables and tables inside a list, but this doesn't seem to be allowed (I get a "Detail members can only contain static inner members" error).

I read about sub-reports and I think this might be the way to go, but I'm not sure how to use sub-reports in this case, or if this is actually the right approach.

Note: As mentioned above, each QuotationItem currently has 3 quantities, but that might be changed in the future, so would be great if the columns can be dynamic, however, this isn't a requirement at this point.

Any suggestions?

Answer 1

Well, I was hoping (and still do) to get a more elegant solution instead of this ugly one (which I had to use for now) but it does what it's supposed to anyway.

I'm posting it as it might help someone with a similar problem. Here's what I did:

Preparing the data:

• Created a dummy DataSet using the VS designer, and added one DataTable to it.
• Added all the required columns from both tables into this DataTable.
• Added the DataSet as the data source for the report.

• In order to pass the actual data, I would fill a DataTable with the same structure as the designed one and then pass it to the report using something like the following:

   private void Form_Load(object sender, EventArgs e) { rptViewerMain.LocalReport.ReportEmbeddedResource = "MyProjectName.QuotationReport.rdlc"; rptViewerMain.LocalReport.EnableExternalImages = true; if (QuotationInfo !=null && QuotationItems != null) { SetupReport(); } this.rptViewerMain.RefreshReport(); } private void SetupReport() { var param1 = new ReportParameter("MyFirstParameter", SomeValue); var param2 = new ReportParameter("MySecondParameter", SomeOtherValue); // etc // Pass Parameters rptViewerMain.LocalReport.SetParameters(new[] { param1, param2, "etc" }); // Prepare the DataTable and add the values to it DataTable dt = new MyDummyDataset.MyDesignedDataTable().Clone(); foreach (var qItem in QuotationItems) { dt.Rows.Add(qItem.ItemNumber, qItem.ItemDescription, "and", "so", "many", "more", "values"); } // Pass the DataTable to the report as the data source replacing the dummy DataSet rptViewerMain.LocalReport.DataSources.Add(new ReportDataSource("MyDummyDataset", dt)); } 

Designing the report:

• Created only one table (Tablix) in the RDLC report and used the cell borders to make it look like 3 tables by removing the borders of the unwanted cells between the "tables" :
• Added the fields from the dummy DataSet to the corresponding cells in the first table (the quantities info) and above the table (the quotation item info).
• For the second and third "tables", simply used expressions to do the calculations based on the values from the first table.

Note: Some fields/variables names were changed in both the question and the answer, but the idea stays the same.