Gets or sets the data source for the tag cloud.
Syntax
Visual Basic (Declaration) | |
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Public Property DataSource As Object |
Visual Basic (Usage) | Copy Code |
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Dim instance As TagCloudCellType
Dim value As Object
instance.DataSource = value
value = instance.DataSource |
C# | |
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public object DataSource {get; set;} |
Property Value
Object containing the data source
Example
This example binds the cell.
C# | Copy Code |
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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));
}
} |
Visual Basic | Copy Code |
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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 |
Requirements
Target Platforms: Windows 7, Windows 8, Windows Vista, Windows Server 2000, Windows 2000 Professional, Windows XP Professional, Windows NT 4.0 Workstation, SP6, Windows NT 4.0 Server, SP6
See Also