'Declaration<DefaultValueAttribute(False)> Public Property MultiSelect As Boolean
'UsageDim instance As UADataDialog Dim value As Boolean instance.MultiSelect = value value = instance.MultiSelect
[DefaultValue(false)] public bool MultiSelect {get; set;}
[DefaultValue(false)] public: property bool MultiSelect { bool get(); void set ( bool value); }
When multi-select is enabled and the dialog allows the user to pick the OPC-UA endpoint, the count of endpoint descriptors must be the same as the count of node descriptors.
// This example shows how to let the user browse for multiple OPC-UA data nodes (data variables or properties). using System; using System.Linq; using System.Windows.Forms; using OpcLabs.EasyOpc.UA.Forms.Browsing; namespace UAFormsDocExamples._UADataDialog { static partial class ShowDialog { public static void MultiSelect(IWin32Window owner) { var dataDialog = new UADataDialog { EndpointDescriptor = { UrlString = "opc.tcp://opcua.demo-this.com:51210/UA/SampleServer" }, // or "http://opcua.demo-this.com:51211/UA/SampleServer" (currently not supported) // or "https://opcua.demo-this.com:51212/UA/SampleServer/" MultiSelect = true, UserPickEndpoint = true }; DialogResult dialogResult = dataDialog.ShowDialog(owner); if (dialogResult != DialogResult.OK) return; // Display results MessageBox.Show(owner, String.Join(Environment.NewLine, dataDialog.NodeElements.Select(element => element.ToString()))); } } }
# This example shows how to let the user browse for multiple OPC-UA data nodes (data variables or properties). # The QuickOPC package is needed. Install it using "pip install opclabs_quickopc". import opclabs_quickopc # Import .NET namespaces. from System.Windows.Forms import * from OpcLabs.EasyOpc.UA.Forms.Browsing import * dataDialog = UADataDialog() dataDialog.EndpointDescriptor.UrlString = 'opc.tcp://opcua.demo-this.com:51210/UA/SampleServer' # or 'http://opcua.demo-this.com:51211/UA/SampleServer' (currently not supported) # or 'https://opcua.demo-this.com:51212/UA/SampleServer/' dataDialog.MultiSelect = True dataDialog.UserPickEndpoint = True dialogResult = dataDialog.ShowDialog() print(dialogResult) if dialogResult != DialogResult.OK: exit() # Display results. for nodeElement in dataDialog.NodeElements: print(nodeElement) print() print('Finished.')