Azure Data Factory Dataset with # in column name - azure-data-factory

Question

I have a Dataset coming from a Rest webservice having an # in the column name:
Like:
{
data[{
#id : 1,
#value : "a"
}, {
#id : 2,
#value : "b"
}
]
}
i want to use it in a foreach and access the specific column:
in the foreach i get the output like #activity('Lookup').output.value
in the foreach there is a stored procedure
as parameter input i tried to get the column: i tried #item().#value but got the error "the string character '#' at position 'xx' is not expected".
is there a way to escape the # in the column name? or can i rename the column?
Thank you very much
edit:
here is the JSON from the ADF pipeline:
{
"name": "pipeline3",
"properties": {
"activities": [
{
"name": "Lookup1",
"type": "Lookup",
"policy": {
"timeout": "7.00:00:00",
"retry": 0,
"retryIntervalInSeconds": 30,
"secureOutput": false,
"secureInput": false
},
"typeProperties": {
"source": {
"type": "HttpSource",
"httpRequestTimeout": "00:01:40"
},
"dataset": {
"referenceName": "HttpFile1",
"type": "DatasetReference"
},
"firstRowOnly": false
}
},
{
"name": "ForEach2",
"type": "ForEach",
"dependsOn": [
{
"activity": "Lookup1",
"dependencyConditions": [
"Succeeded"
]
}
],
"typeProperties": {
"items": {
"value": "#activity('Lookup1').output.value",
"type": "Expression"
},
"activities": [
{
"name": "Stored Procedure12",
"type": "SqlServerStoredProcedure",
"policy": {
"timeout": "7.00:00:00",
"retry": 0,
"retryIntervalInSeconds": 30,
"secureOutput": false,
"secureInput": false
},
"typeProperties": {
"storedProcedureName": "[dbo].[testnv]",
"storedProcedureParameters": {
"d": {
"value": {
"value": "#item().#accno",
"type": "Expression"
},
"type": "String"
}
}
},
"linkedServiceName": {
"referenceName": "AzureSqlDatabase1",
"type": "LinkedServiceReference"
}
}
]
}
}
]
},
"type": "Microsoft.DataFactory/factories/pipelines"
}

Answer 1

Please try "#item()['#accno']" for #item().#accno
Also replied in MSDN.