(VB.NET) Google Sheets - Update (Set Values in a Range)

Sets values in a range of a spreadsheet. This example will demonstrate by first getting a range, then changing some values in the JSON, and then HTTPS PUT the changes back to the Google Sheet.

Note: This example requires Chilkat v9.5.0.76 or greater.

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'  This example requires the Chilkat API to have been previously unlocked.
'  See Global Unlock Sample for sample code.

'  This example uses a previously obtained access token having permission for the
'  Google Sheets scope.

'  In this example, Get Google Sheets OAuth2 Access Token, the access
'  token was saved to a JSON file.  This example fetches the access token from the file..
Dim jsonToken As New Chilkat.JsonObject
Dim success As Boolean = jsonToken.LoadFile("qa_data/tokens/googleSheets.json")
If (jsonToken.HasMember("access_token") = False) Then
    Debug.WriteLine("No access token found.")
    Exit Sub
End If

Dim http As New Chilkat.Http
http.AuthToken = jsonToken.StringOf("access_token")

'  First get the cells in the range A1:B5
http.SetUrlVar("range","Sheet1!A1:B5")
http.SetUrlVar("spreadsheetId","1_SO2L-Y6nCayNpNppJLF0r9yHB2UnaCleGCKeE4O0SA")
Dim jsonResponse As String = http.QuickGetStr("https://sheets.googleapis.com/v4/spreadsheets/{$spreadsheetId}/values/{$range}")
If (http.LastMethodSuccess <> True) Then
    Debug.WriteLine(http.LastErrorText)
    Exit Sub
End If


Debug.WriteLine(jsonResponse)

Dim json As New Chilkat.JsonObject
json.EmitCompact = False
json.Load(jsonResponse)

'  A sample response is shown below.

'  {
'    "range": "Sheet1!A1:B5",
'    "majorDimension": "ROWS",
'    "values": [
'      [
'        "Item",
'        "Cost"
'      ],
'      [
'        "Wheel",
'        "$20.50"
'      ],
'      [
'        "Door",
'        "$15"
'      ],
'      [
'        "Engine",
'        "$100"
'      ],
'      [
'        "Totals",
'        "$135.50"
'      ]
'    ]
'  }


'  We're going to change the cost of the Engine to $120, and the Totals to $155.50

json.I = 3
json.J = 1
json.UpdateString("values[i][j]","$120")
json.I = 4
json.UpdateString("values[i][j]","$155.50")

'  Show the updated JSON.
Debug.WriteLine(json.Emit())

'  --------------------------------------------------------
'  Note: This example requires Chilkat v9.5.0.76 or greater.
'  --------------------------------------------------------

'  Update the Google Sheet using a PUT request.
json.EmitCompact = True
Dim urlToUpdate As String = "https://sheets.googleapis.com/v4/spreadsheets/{$spreadsheetId}/values/{$range}?valueInputOption=USER_ENTERED"
Dim xyz As String = http.QuickGetStr(urlToUpdate)
Dim resp As Chilkat.HttpResponse = http.PText("PUT",urlToUpdate,json.Emit(),"utf-8","application/json",False,False)
If (http.LastMethodSuccess <> True) Then
    Debug.WriteLine(http.LastErrorText)
    Exit Sub
End If


'  Examine the response..
Debug.WriteLine("response status code = " & resp.StatusCode)
Debug.WriteLine("response body:")
Debug.WriteLine(resp.BodyStr)

'  A sample response body:

'  {
'    "spreadsheetId": "1_SO2L-Y6nCayNpNppJLF0r9yHB2UnaCleGCKeE4O0SA",
'    "updatedRange": "Sheet1!A1:B5",
'    "updatedRows": 5,
'    "updatedColumns": 2,
'    "updatedCells": 10
'  }