Forum Discussion
Help on handling errors?
I cannot figure out how to insert the IF xxx[HasError] else xxx then into this statement.
= Table.AddColumn(#"Added Custom9", "Entity", each ( let currentEntryNoKey = [Entry_No_Key] in Table.SelectRows(All_Vendor_Ledger, each [Entry_No_Key] = currentEntryNoKey))
{0}[Vendor_Name])
Basically, if there is an error, I just want it to return blank. If there is no error, then return the {0}[Vendor_Name]
OK, if you just want a value from that table, or null each time there is an error, I would do it like this, so there are no scope issues. Add a new step, name it EntryKeyList, then in the formula bar, type:
= List.Buffer(#"Added Custom9"[Entry_No_Key])
Add a new step, name it NewThing (or whatever), then in the formula bar:
= Table.AddColumn(EntryKey, "Entity" each try Table.SelectRows(All_Vendor_Ledger, each List.Contains([Entry_No_Key], EntryKeyList)){0}[Vendor_Name] otherwise null)
--Nate
Entity = Table.AddColumn(
7 Replies
OK, if you just want a value from that table, or null each time there is an error, I would do it like this, so there are no scope issues. Add a new step, name it EntryKeyList, then in the formula bar, type:
= List.Buffer(#"Added Custom9"[Entry_No_Key])
Add a new step, name it NewThing (or whatever), then in the formula bar:
= Table.AddColumn(EntryKey, "Entity" each try Table.SelectRows(All_Vendor_Ledger, each List.Contains([Entry_No_Key], EntryKeyList)){0}[Vendor_Name] otherwise null)
--Nate
Entity = Table.AddColumn(
I will try this fix and report back. Thanks!
The standard method in M is with "try" ... "otherwise". In your case, "try xxx otherwise null" with return xxx if there isn't an error and a null otherwise.
Yes. I guess my problem is where do I put the Try and the Else.. I can't seem to figure that out.
I did try this:
= Table.AddColumn(#"Added Custom9", "Entity", each ( let currentEntryNoKey = [Entry_No_Key] in Table.SelectRows(All_Vendor_Ledger, each [Entry_No_Key] = currentEntryNoKey)), try {0}[Vendor_Name] otherwise "null")but now I get a We cannot convert the value "null" to type Type.
I changed it to this...
= Table.AddColumn(#"Added Custom9", "Entity", each ( let currentEntryNoKey = [Entry_No_Key] in Table.SelectRows(All_Vendor_Ledger, each [Entry_No_Key] = currentEntryNoKey)), try {0}[Vendor_Name] otherwise Null.Type)it seems to work, but my new problem is that the null results says TABLE, and not null.
