Govert van Drimmelen comments

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                                            Govert van Drimmelen

ExcelAsyncUtil.Observe under the same lock causes dealock for IsThreadSafe=true function

Can you describe a bit why you want this pattern to work? The high-level lock is kind of in contradiction to the `IsThreadSafe=true` option. That does not explain the deadlock,...

ExcelAsyncUtil.Observe under the same lock causes dealock for IsThreadSafe=true function

If you are making a function that streams results into a cell, then a good way to think about it is that you are making a function with this signature:...

ExcelAsyncUtil.Observe under the same lock causes dealock for IsThreadSafe=true function

If you want the caller part of the RTD topic key then you can do it like this: ``` [ExcelFunction] public static object MyFunction(string value) { var caller = XlCall.Excel(XlCall.xlfCaller);...

I use WPS The text length is 147, using substring(2,220)

I can't read the image, but it seems you're running into a limitation with the function registration. If so, the limitations that Excel-DNA enforces are limits of Excel. If WPS...

RTD hang excel with "many" Observe-type UDFs

I suppose you are following the pattern from this sample: https://github.com/Excel-DNA/Samples/blob/master/AsyncBatch/AsyncBatch/AsyncBatchUtil.cs I'll have to experiment a bit, and don't have personal experience of what you are doing, with large sheets...

Packing stops looking for dlls if it doesnt find 1 row in the dna config

Do you think it should rather fail the build?

Packing stops looking for dlls if it doesnt find 1 row in the dna config

@Sergey-Vlasov Maybe we can revisit the packing task a bit: * it should fail the build if there are files it can't resolve * the logging should go through the...

WPF control library's resource assembly not found at runtime despite being present in output directory (worked before system reinstall)

I wonder if it would be helpful to have some code like this, in the place where your assemblies would be loaded (maybe the add-in's AutoOpen) ``` using var scope...

Registration [Error] xlfRegister call failed for function or command

You can enable a higher level of logging to see the exact call that is failing - in this case you need the 'Info' level of logging enabled. ## .NET...

Registration [Error] xlfRegister call failed for function or command

Is this still true? > [...] the error only seems to happen irregularly. You might try to see if it makes a difference to load the add-in via "File ->...