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- QuickOPC-Classic in .NET
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- issue browsing opc server with daItemDialog
issue browsing opc server with daItemDialog
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thanks!
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i changed the "Specific Version" property to "False" for all of the OPCLabs assembly references and rebuilt my app. my app is now allowing me to traverse the entire hierarchy, and select items (leafs) along the way.
thank you for your support with this issue.
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You can either remove all QuickOPC assembly references from your project and them add them anew, or simply select them, and in the Properties window, set the "Specific Version" property to False.
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c:\WINDOWS\Microsoft.NET\Framework\v3.5\Microsoft.Common.targets : warning MSB3245: Could not resolve this reference. Could not locate the assembly "OpcLabs.BaseLibExtensions, Version=5.20.507.1, Culture=neutral, PublicKeyToken=6faddca41dacb409". Check to make sure the assembly exists on disk. If this reference is required by your code, you may get compilation errors.
c:\WINDOWS\Microsoft.NET\Framework\v3.5\Microsoft.Common.targets : warning MSB3245: Could not resolve this reference. Could not locate the assembly "OpcLabs.EasyOpcClassicForms, Version=5.20.507.1, Culture=neutral, PublicKeyToken=6faddca41dacb409". Check to make sure the assembly exists on disk. If this reference is required by your code, you may get compilation errors.
c:\WINDOWS\Microsoft.NET\Framework\v3.5\Microsoft.Common.targets : warning MSB3245: Could not resolve this reference. Could not locate the assembly "OpcLabs.EasyOpcClassicExtensions, Version=5.20.507.1, Culture=neutral, PublicKeyToken=6faddca41dacb409". Check to make sure the assembly exists on disk. If this reference is required by your code, you may get compilation errors.
c:\WINDOWS\Microsoft.NET\Framework\v3.5\Microsoft.Common.targets : warning MSB3245: Could not resolve this reference. Could not locate the assembly "OpcLabs.EasyOpcClassic, Version=5.20.507.1, Culture=neutral, PublicKeyToken=6faddca41dacb409". Check to make sure the assembly exists on disk. If this reference is required by your code, you may get compilation errors.
c:\WINDOWS\Microsoft.NET\Framework\v3.5\Microsoft.Common.targets : warning MSB3245: Could not resolve this reference. Could not locate the assembly "OpcLabs.BaseLibForms, Version=5.20.507.1, Culture=neutral, PublicKeyToken=6faddca41dacb409". Check to make sure the assembly exists on disk. If this reference is required by your code, you may get compilation errors.
c:\WINDOWS\Microsoft.NET\Framework\v3.5\Microsoft.Common.targets : warning MSB3245: Could not resolve this reference. Could not locate the assembly "OpcLabs.EasyOpcClassicInternal, Version=5.20.507.1, Culture=neutral, PublicKeyToken=6faddca41dacb409". Check to make sure the assembly exists on disk. If this reference is required by your code, you may get compilation errors.
c:\WINDOWS\Microsoft.NET\Framework\v3.5\Microsoft.Common.targets : warning MSB3245: Could not resolve this reference. Could not locate the assembly "OpcLabs.BaseLib, Version=5.20.507.1, Culture=neutral, PublicKeyToken=6faddca41dacb409". Check to make sure the assembly exists on disk. If this reference is required by your code, you may get compilation errors.
" ... error CS0246: The type or namespace name 'OpcLabs' could not be found (are you missing a using directive or an assembly reference?)"
" ... error CS0246: The type or namespace name 'JetBrains' could not be found (are you missing a using directive or an assembly reference?)"
" ... error CS0246: The type or namespace name 'EasyDAMultipleItemsChangedEventArgs' could not be found (are you missing a using directive or an assembly reference?)".
it looks like old QuickOPC elements are being looked for (Version=5.20.507.10) - how do i eliminate these old references? i tried to clean the build before rebuilding it, but that did not seem to help.
thank you again for your assistance!
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More info: We have addressed a problem where no node elements were returned, that occurred when following conditions were fulfilled: 1) filter for both leaves and branches was used (this is also the case with DAItemDialog), 2) the server supported DA 3.0 but not DA 2.0, and 3) no leaves were present at the parent node.
Interestingly, we have found this in internal testing some weeks ago and fixed it, but the fix has not been made public. It is quite possible that you ran into precisely the same thing. Please let me knwo if this resolves the issue.
Kind regards,
Zbynek Zahradnik
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in the hierarchy screenshots, the selected item is the first one encountered when traversing the hierarchy from the root down. so i believe the answer to your question is yes - there are no items (leafs) at the root level.
thank you. please let me know if you have any other questions.
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Many thanks
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- Forum
- Discussions
- QuickOPC-Classic in .NET
- Browsing, Browse Dialogs and Controls
- issue browsing opc server with daItemDialog