Ställ in anpassad DataSource för WorkbookDesigner

Aspose.Cells ger möjlighet att ställa in anpassad DataSource för WorkbookDesigner. API tillhandahåller en överbelastad metodWorkbookDesigner.SetDataSourcesom tar namnet på källan som den första parametern och instansen av klassen som implementerarICellsDataTablesom den andra parametern.

Följande kodavsnitt visar användningen avWorkbookDesigner.SetDataSourcemetod för att ställa in den anpassade datakällan.

Exempelkod

// 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");

Genomförandet avCustomerDataSource, Kund, ochKundlista klasser ges nedan

// 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; }
    }
}

Käll- och utdata Excel-filerna bifogas som referens.

Källfilen

Utdatafil