Binding to DataTable, DataSet or DataView
RadTagCloud can be bound to a DataTable, DataSet and a DataView. This example shows binding to a DataTable object.
The declaration of the RadTagCloud object includes no DataSourceID property or <Items>
section:
<telerik:RadTagCloud RenderMode="Lightweight" ID="RadTagCloud1" runat="server" Width="400px">
</telerik:RadTagCloud>
In the Page_Load event handler, create and fill the DataTable object, then bind it to the tagCloud. You must call the DataBind method after setting the DataSource property.
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
BindToDataTable(RadTagCloud1);
}
}
private void BindToDataTable(RadTagCloud cloud)
{
SqlConnection con = new SqlConnection("Data Source=LOCAL;Initial Catalog=TagCloud;Integrated Security=True");
SqlDataAdapter adapter = new SqlDataAdapter("SELECT [Text], [Weight], [NavigateUrl] FROM [Links]", con);
DataTable links = new DataTable();
adapter.Fill(links);
cloud.DataTextField = "Text";
cloud.DataWeightField = "Weight";
cloud.DataNavigateUrlField = "NavigateUrl";
cloud.DataSource = links;
cloud.DataBind();
}
Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
If Not Page.IsPostBack Then
BindToDataTable(RadTagCloud1)
End If
End Sub 'Page_Load
Private Sub BindToDataTable(ByVal cloud As RadTagCloud)
Dim con As New SqlConnection("Data Source=LOCAL;Initial Catalog=TagCloud;Integrated Security=True")
Dim adapter As New SqlDataAdapter("SELECT [Text], [Weight], [NavigateUrl] FROM [Links]", con)
Dim links As New DataTable()
adapter.Fill(links)
cloud.DataTextField = "Text"
cloud.DataWeightField = "Weight"
cloud.DataNavigateUrlField = "NavigateUrl"
cloud.DataSource = links
cloud.DataBind()
End Sub 'BindToDataTable