Edit this page

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