Spread ASP.NET 14
FarPoint.Web.Spread Assembly / FarPoint.Web.Spread Namespace / TagCloudCellType Class / DataWeightField Property
Example


In This Topic
    DataWeightField Property
    In This Topic
    Gets or sets the weight field of the data source of the tag cloud.
    Syntax
    'Declaration
     
    Public Property DataWeightField As String
    'Usage
     
    Dim instance As TagCloudCellType
    Dim value As String
     
    instance.DataWeightField = value
     
    value = instance.DataWeightField
    public string DataWeightField {get; set;}

    Property Value

    String containing the weight field of the data source
    Example
    This example binds a cell.
    private DataSet CreateData()
    {
        DataSet ds = new DataSet();
        DataTable dt = new DataTable();
        dt.Columns.Add(new DataColumn("ID", Type.GetType("System.Int32")));
        dt.Columns.Add(new DataColumn("Keyword", Type.GetType("System.String")));
        dt.Columns.Add(new DataColumn("Weight", Type.GetType("System.Int32")));
    
        dt.Rows.Add(new object[] { 1, ".net", 52 });
        dt.Rows.Add(new object[] { 2, "ajax", 22 });
        dt.Rows.Add(new object[] { 3, "css", 34 });
    
        ds.Tables.Add(dt);
        return ds;
    } 
    protected void Page_Load(object sender, EventArgs e)
    {
        if (IsPostBack) return;
    
        TagCloudCellType tcloud = new TagCloudCellType();
        tcloud.DataSource = CreateData();
        tcloud.DataDisplayTextField = "Keyword";
        tcloud.DataHrefField = "Keyword";
        tcloud.DataHrefFormatString = "http://msdn.microsoft.com/en-us/library/Tags-Cloud.aspx?tag={0}";
        tcloud.DataWeightField = "Weight";
        tcloud.DataTitleField = "Weight";
        tcloud.DataTitleFormatString = "{0} item(s) tagged";
        tcloud.DataItemDataField = "ID";
    
        FpSpread1.Sheets[0].Cells[1, 1].CellType = tcloud; 
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        TagCloudCellType tc = FpSpread1.Sheets[0].GetCellType(1, 1) as TagCloudCellType;
        foreach (TagCloudItem ci in tc.TagCloudItems)
        {
            // get the ItemData value associated to the cloud item 
            System.Diagnostics.Debug.WriteLine(string.Format("DisplayText:{0} , ItemValue:{1}", ci.DisplayText, ci.ItemData));
        } 
    }
    Private Function CreateData() As DataSet
        Dim ds As New DataSet
        Dim dt As New DataTable
        dt.Columns.Add(New DataColumn("ID", Type.GetType("System.Int32")))
        dt.Columns.Add(New DataColumn("Keyword", Type.GetType("System.String")))
        dt.Columns.Add(New DataColumn("Weight", Type.GetType("System.Int32")))
    
        dt.Rows.Add(New Object() {1, ".net", 52})
        dt.Rows.Add(New Object() {2, "ajax", 22})
        dt.Rows.Add(New Object() {3, "css", 34})
    
        ds.Tables.Add(dt)
        Return ds
    End Function
    
    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        If IsPostBack Then Return
    
        Dim tcloud As New TagCloudCellType
        tcloud.DataSource = CreateData()
        tcloud.DataDisplayTextField = "Keyword"
        tcloud.DataHrefField = "Keyword"
        tcloud.DataHrefFormatString = "http://msdn.microsoft.com/en-us/library/Tags-Cloud.aspx?tag={0}"
        tcloud.DataWeightField = "Weight"
        tcloud.DataTitleField = "Weight"
        tcloud.DataTitleFormatString = "{0} item(s) tagged"
        tcloud.DataItemDataField = "ID"
    
        FpSpread1.Sheets(0).Cells(1, 1).CellType = tcloud
    End Sub
    
    Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim tc As TagCloudCellType = FpSpread1.Sheets(0).GetCellType(1, 1)
        For Each ci As TagCloudItem In tc.TagCloudItems
            ' get the ItemData value associated to the cloud item
            System.Diagnostics.Debug.WriteLine(String.Format("DisplayText:{0} , ItemValue:{1}", ci.DisplayText, ci.ItemData))
        Next
    End Sub
    See Also