Set custom DataSource for WorkbookDesigner

Aspose.Cells provides the option to set custom DataSource for WorkbookDesigner. The API provides an overloaded method WorkbookDesigner.SetDataSource which takes the name of the source as the first parameter and the instance of the class that implements ICellsDataTable as the second parameter. 

The following code snippet demonstrates the use of WorkbookDesigner.SetDataSource method to set the custom DataSource.

Sample Code

// For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-.NET
//Source directory
string sourceDir = RunExamples.Get_SourceDirectory();
string outputDir = RunExamples.Get_OutputDirectory();

CustomerList customers = new CustomerList();
customers.Add(new Customer("Thomas Hardy", "120 Hanover Sq., London"));
customers.Add(new Customer("Paolo Accorti", "Via Monte Bianco 34, Torino"));

Workbook workbook = new Workbook(sourceDir + "SmartMarker1.xlsx");

WorkbookDesigner designer = new WorkbookDesigner(workbook);

designer.SetDataSource("Customer", new CustomerDataSource(customers));

designer.Process();

workbook.Save(outputDir + "dest.xlsx");

The implementation of CustomerDataSource, Customer, and CustomerList classes is given below

// For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-.NET
public class CustomerDataSource : ICellsDataTable
{
    public CustomerDataSource(CustomerList customers)
    {
        this.m_DataSource = customers;
        this.m_Properties = customers[0].GetType().GetProperties();
        this.m_Columns = new string[this.m_Properties.Length];
        this.m_PropHash = new Hashtable(this.m_Properties.Length);

        for (int i = 0; i < m_Properties.Length; i++)
        {
            this.m_Columns[i] = m_Properties[i].Name;
            this.m_PropHash.Add(m_Properties[i].Name, m_Properties[i]);
        }
        this.m_IEnumerator = this.m_DataSource.GetEnumerator();
    }

    internal string[] m_Columns;
    internal ICollection m_DataSource;
    private Hashtable m_PropHash;
    private IEnumerator m_IEnumerator;
    private System.Reflection.PropertyInfo[] m_Properties;

    public string[] Columns
    {
        get
        {
            return this.m_Columns;
        }
    }

    public int Count
    {
        get
        {
            return this.m_DataSource.Count;
        }
    }

    public void BeforeFirst()
    {
        this.m_IEnumerator = this.m_DataSource.GetEnumerator();
    }

    public object this[int index]
    {
        get
        {
            return this.m_Properties[index].GetValue(this.m_IEnumerator.Current, null);
        }
    }

    public object this[string columnName]
    {
        get
        {
            return ((System.Reflection.PropertyInfo)this.m_PropHash[columnName]).GetValue(this.m_IEnumerator.Current, null);
        }
    }

    public bool Next()
    {
        if (this.m_IEnumerator == null)
            return false;

        return this.m_IEnumerator.MoveNext();
    }
}

public class Customer
{
    public Customer(string aFullName, string anAddress)
    {
        FullName = aFullName;
        Address = anAddress;
    }

    public string FullName { get; set; }

    public string Address { get; set; }
}

public class CustomerList : ArrayList
{
    public new Customer this[int index]
    {
        get { return (Customer)base[index]; }
        set { base[index] = value; }
    }
}

The source and output excel files are attached for reference.

Source File

Output File