代码无故停止执行

Question

This is C# Winforms.

I have a list of strings in this code:

List<string> WaveAndPickFields = new List<string>(new string[] { "ID", "TransactionID", "OrderNumber", "WarehouseID", "StoreOrderNumber", "OrderType", "CustomerID", "CustomerPONumber", "DepartmentCode", "LoadNumber", "ReverseLoadSequence", "BOLNumber", "MasterBOLNumber", "ProNumber", "Carrier", "CarrierSCAC", "FreightTerms", "RushOrderFlag", "OrderEntryDate", "ExpectedCarrierArrivalDate", "DatePromised", "OrderWeight", "OrderCubicVolume", "OrderCartonCounts", "ShippingShort", "PrepaidFreight", "CODAmount", "InsuranceAmount", "PIPAmount", "TotalFreightCost", "ShipToCustomerCode", "ShipToName", "ShipToAddress1", "ShipToAddress2", "ShipToAddress3", "ShipToCity", "ShipToState", "ShipToZipCode", "ShipToCountryCode", "ShipToCountryName", "BillToCustomerCode", "BillToName", "BillToAddress1", "BillToAddress2", "BillToAddress3", "BillToCity", "BillToState", "BillToZipCode", "BillToCountryCode", "BillToCountryName", "DeliveryAddressName", "DeliveryAddress1", "DeliveryAddress2", "DeliveryAddress3", "DeliveryCity", "DeliveryState", "DeliveryZipCode", "DeliveryCountryCode", "DeliveryCountryName", "DeliveryPhone", "BillFreightCustomerCode", "BillFreightAddressName", "BillFreightAddress1", "BillFreightAddress2", "BillFreightAddress3", "BillFreightCity", "BillFreightState", "BillFreightZipCode", "BillFreightCountryCode", "BillFreightCountryName", "CartonLabel", "ShipVerificationFlag", "PartialOrderFlag", "EarliestShipDate", "LatestShipDate", "EarliestDeliveryDate", "LatestDeliveryDate", "PromoCode", "Route", "Stop", "ToteFlag", "Status" });

All I want to do is loop through this code and add a bunch of fields to a datatable. I am doing it in this code:

foreach (string field in WaveAndPickFields)
{
    dtWaveAndPicks.Columns.Add(field);
}

I have also tried:

for (int i = 0; i < WaveAndPickFields.Count; i++)
{
    DataColumn column = new DataColumn(WaveAndPickFields[i]);
    dtWaveAndPicks.Columns.Add(column);
}

For whatever reason these lines appear to execute but the entire function stops and nothing else executes without an exception error.

dtWaveAndPicks.Columns.Add(field);

and:

dtWaveAndPicks.Columns.Add(column);

Does anyone know why this is happening? The alternative that does work for me is having a line that will add a column. The problem is, I didn't want to have 80+ lines to add the fields when I could have had a loop like this.

Answer 1

I would strongly suggest using windbg to determine what's going on here - if you haven't used it before it can be a bit daunting but there's quite good tutorials (particularly from Tess see here )

Once you've got windbg installed get a process dump via task manager when the hang occurs Open the dump file in windbg

Then run .symfix c:\\sos to fix the symbol path

Next load sos .loadby sos mscorwks

Finally to check for an exception on any thread run .foreach (ex {!dumpheap -type Exception -short}){.echo "********************************";!pe –nested ${ex} }

Give this a try & see how you get on