ConnectionPoint.InterfaceType Property
Gets the type of the interface used by a connection point.
Assembly: System.Web (in System.Web.dll)
The InterfaceType property indicates what type of interface a connection point uses. This can help to determine whether two controls are compatible and able to form a connection. If the provider connection point's InterfaceType is different from the consumer connection point's InterfaceType, then the two controls are incompatible (meaning that they cannot be directly connected without a transformer), and a WebPartTransformer object must be used to establish a connection.
The following code example demonstrates the use of the InterfaceType property on both ProviderConnectionPoint and ConsumerConnectionPoint objects. This code example shows only the Web page that contains the code to access the property; for the full code required to run the example, see the Example section of the ConnectionPoint class overview.
The code in the Button2_Click method of the Web page accesses the InterfaceType property on each of the connection point objects and writes each value to a label. Execute the code by clicking the Connection Point Details button after the page is loaded in a browser.
<%@ Page Language="VB" %> <%@ register tagprefix="uc1" tagname="DisplayModeMenuVB" src="~/displaymodemenuvb.ascx" %> <%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.VB.Controls" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <script runat="server"> Protected Sub Button1_Click(ByVal sender As Object, _ ByVal e As System.EventArgs) Dim provPoint As ProviderConnectionPoint = _ mgr.GetProviderConnectionPoints(zip1)("ZipCodeProvider") Dim connPoint As ConsumerConnectionPoint = _ mgr.GetConsumerConnectionPoints(weather1)("ZipCodeConsumer") If mgr.CanConnectWebParts(zip1, provPoint, weather1, connPoint) Then mgr.ConnectWebParts(zip1, provPoint, weather1, connPoint) End If End Sub Protected Sub Button2_Click(ByVal sender As Object, _ ByVal e As System.EventArgs) Dim conn As WebPartConnection = mgr.Connections(0) lblConn.Text = "<h2>Connection Point Details</h2>" & _ "<h3>Provider Connection Point</h3>" & _ " Display name: " & conn.ProviderConnectionPoint.DisplayName & _ "<br />" & _ " ID: " & conn.ProviderConnectionPoint.ID & _ "<br />" & _ " Interface type: " & conn.ProviderConnectionPoint.InterfaceType.ToString() & _ "<br />" & _ " Control type: " & conn.ProviderConnectionPoint.ControlType.ToString() & _ "<br />" & _ " Allows multiple connections: " & _ conn.ProviderConnectionPoint.AllowsMultipleConnections.ToString() & _ "<br />" & _ " Enabled: " & conn.ProviderConnectionPoint.GetEnabled(zip1).ToString() & _ "<hr />" & _ "<h3>Consumer Connection Point</h3>" & _ " Display name: " & conn.ConsumerConnectionPoint.DisplayName & _ "<br />" & _ " ID: " & conn.ConsumerConnectionPoint.ID & _ "<br />" & _ " Interface type: " & conn.ConsumerConnectionPoint.InterfaceType.ToString() & _ "<br />" & _ " Control type: " & conn.ConsumerConnectionPoint.ControlType.ToString() & _ "<br />" & _ " Allows multiple connections: " & _ conn.ConsumerConnectionPoint.AllowsMultipleConnections.ToString() & _ "<br />" & _ " Enabled: " & conn.ConsumerConnectionPoint.GetEnabled(zip1).ToString() End Sub Protected Sub Page_Load(ByVal sender As Object, _ ByVal e As System.EventArgs) lblConn.Text = String.Empty End Sub </script> <html xmlns="http://www.w3.org/1999/xhtml" > <head id="Head1" runat="server"> <title>Untitled Page</title> </head> <body> <form id="form1" runat="server"> <div> <asp:WebPartManager ID="mgr" runat="server" > <StaticConnections> <asp:WebPartConnection ID="conn1" ConsumerConnectionPointID="ZipCodeConsumer" ConsumerID="weather1" ProviderConnectionPointID="ZipCodeProvider" ProviderID="zip1" /> </StaticConnections> </asp:WebPartManager> <uc1:displaymodemenuvb id="menu1" runat="server" /> <asp:WebPartZone ID="WebPartZone1" runat="server"> <ZoneTemplate> <aspSample:ZipCodeWebPart ID="zip1" runat="server" Title="Zip Code Provider" /> <aspSample:WeatherWebPart ID="weather1" runat="server" Title="Zip Code Consumer" /> </ZoneTemplate> </asp:WebPartZone> <asp:ConnectionsZone ID="ConnectionsZone1" runat="server"> </asp:ConnectionsZone> <asp:Button ID="Button1" runat="server" Text="Dynamic Connection" OnClick="Button1_Click" /> <br /> <asp:Button ID="Button2" runat="server" Text="Connection Point Details" OnClick="Button2_Click" /> <br /> <asp:Label ID="lblConn" runat="server" /> </div> </form> </body> </html>
Available since 2.0