DataBind Charts to SharePoint Excel Services Data

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SharePoint Excel Services ADO.NET Provider

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Use the standard ADO.NET procedures for databinding to provide bidirectional access to SharePoint Excel Services data from controls in the Visual Studio toolbox. This article demonstrates a graphical approach using wizards in Visual Studio, as well as how to databind with only a few lines of code.

DataBinding enables bidirectional access to data from UI controls. You can use the CData ADO.NET Provider for SharePoint Excel Services to easily databind SharePoint Excel Services data to Windows Forms and Web controls in Visual Studio. This article shows how to use wizards to databind SharePoint Excel Services data to a chart that reflects any changes. The code walk-through section shows how to create a chart in 10 lines of code.

DataBind to a Chart

DataBinding consists of three steps: Instantiate the control, configure the data source, and databind.

Configure the Connection and Select Database Objects

Follow the procedure below to use the Data Source Configuration Wizard to create a chart control and the connection to SharePoint Excel Services. In the wizard, you can select the SharePoint Excel Services entities you want to databind.

  1. In a Windows Forms project, drag and drop a Chart control from the toolbox to the form. In the Data section of the Chart properties, select DataSource and then select Add Project Data Source from the menu.
  2. In the Data Source Configuration Wizard that appears, select Database -> Dataset.
  3. In the Choose Your Data Connection step, click New Connection.

  4. In the Add Connection dialog, click Change to select the CData SharePoint Excel Services Data Source.

    Below is a typical connection string:

    URL=https://myorg.sharepoint.com;User=admin@myorg.onmicrosoft.com;Password=password;File=Book1.xlsx;

    The URL, User, and Password properties, under the Authentication section, must be set to valid credentials for SharePoint Online, SharePoint 2010, or SharePoint 2013. Additionally, the Library property must be set to a valid SharePoint Document Library and the File property must be set to a valid .xlsx file in the indicated Library.

    When you configure the connection, you may also want to set the Max Rows connection property. This will limit the number of rows returned, which is especially helpful for improving performance when designing reports and visualizations.

  5. Choose the database objects you want to work with. This example uses the Account table.

DataBind

After adding the data source and selecting database objects, you can bind the objects to the chart. This example assigns the x-axis to Name and the y-axis to AnnualRevenue.

  1. In the Chart properties, click the button in the Series property to open the Series Collection Editor.
  2. In the Series properties, select the columns you want for the x- and y-axes: Select columns from the menu in the XValueMember and YValueMember properties.

The chart is now databound to the SharePoint Excel Services data. Run the chart to display the current data.

Code Walk-through

DataBinding to SharePoint Excel Services data requires only a few lines of code and can be completed in three easy steps.

  1. Connect to SharePoint Excel Services.
  2. Create the ExcelServicesDataAdapter to execute the query and create a DataSet to be filled with its results.
  3. DataBind the result set to the chart.

Below is the complete code:

ExcelServicesConnection conn = new ExcelServicesConnection("URL=https://myorg.sharepoint.com;User=admin@myorg.onmicrosoft.com;Password=password;File=Book1.xlsx;"); ExcelServicesCommand comm = new ExcelServicesCommand("SELECT Name, AnnualRevenue FROM Account", conn); ExcelServicesDataAdapter da = new ExcelServicesDataAdapter(comm); DataSet dataset = new DataSet(); da.Fill(dataset); chart1.DataSource = dataset; chart1.Series[0].XValueMember = "Name"; chart1.Series[0].YValueMembers = "AnnualRevenue"; // Insert code for additional chart formatting here. chart1.DataBind();