Webbrowser MSHTML Problem
One step forward and 2 back. I normally mainly do server side coding but I was asked to convert a Server based IIS DLL to run as a "detached from the internet" client. It all works well except:
getAttribute("Value") does not seem to work for <select> elements.
To reproduce the problem:
1) Create a new Standared EXE project.
2) Set a Project component: Microsoft Internet Controls.
3) Set a Project Reference to: Microsoft HTML Object Library.
4) Create a Webbrowser1 control on your form.
Paste the following code & run.
The click on the Submit button.
The code marked with ## does not return the value of the select box.
How can I change the code to find the the Select element value?
------Form Code Starts Here----------
Option Explicit
Dim WithEvents HFORM As MSHTML.HTMLFormElement
Private Sub Form_Load()
DoEvents
' Place a dummy page in the browser
WebBroweser1.Navigate "about:blank"
DoEvents
Dim m$
' create a HTML form with a Select box, Text Input box and submit button.
m$ = "<HTML><BODY><Form ID=""MyForm"" Name=""PRB"" Action="""" Method=""Post"">" _
+ "Change the select box to Item 1 then click Submit<BR>Select Box<Select ID=""IDV1"" Name=""V1"">" _
+ "<Option><Option>Item 1<Option Selected>Item 2</Select>" _
+ "<Input ID=""IDV2"" Type=""Text"" Name=""V2"" Value=""This value is ok"">" _
+ "<Input ID=""IDV3"" Type=""Submit"" Name=""V3"" Value=""Submit"">" _
+ "</Form></Body></html>"
' load the html into the browser
WebBroweser1.Document.writ
DoEvents
' link the form element to that the Submit button can be trapped.
Set HFORM = WebBroweser1.Document.getE
End Sub
Private Function HFORM_onsubmit() As Boolean
Dim HELEMENT As MSHTML.HTMLGenericElement
Dim SELEL As MSHTML.HTMLSelectElement
' display the data from the form
Dim m$
m$ = "The values found were as follows:" + vbCrLf
Set SELEL = WebBroweser1.Document.getE
' The following line fails to get the value
' of the select box
m$ = m$ + "IDV1=" + SELEL.getAttribute("Value"
Set HELEMENT = WebBroweser1.Document.getE
m$ = m$ + "IDV2=" + HELEMENT.getAttribute("Val
Set HELEMENT = WebBroweser1.Document.getE
m$ = m$ + "IDV3=" + HELEMENT.getAttribute("Val
Set HELEMENT = Nothing
HFORM_onsubmit = False
MsgBox m$
End Function
getAttribute("Value") does not seem to work for <select> elements.
To reproduce the problem:
1) Create a new Standared EXE project.
2) Set a Project component: Microsoft Internet Controls.
3) Set a Project Reference to: Microsoft HTML Object Library.
4) Create a Webbrowser1 control on your form.
Paste the following code & run.
The click on the Submit button.
The code marked with ## does not return the value of the select box.
How can I change the code to find the the Select element value?
------Form Code Starts Here----------
Option Explicit
Dim WithEvents HFORM As MSHTML.HTMLFormElement
Private Sub Form_Load()
DoEvents
' Place a dummy page in the browser
WebBroweser1.Navigate "about:blank"
DoEvents
Dim m$
' create a HTML form with a Select box, Text Input box and submit button.
m$ = "<HTML><BODY><Form ID=""MyForm"" Name=""PRB"" Action="""" Method=""Post"">" _
+ "Change the select box to Item 1 then click Submit<BR>Select Box<Select ID=""IDV1"" Name=""V1"">" _
+ "<Option><Option>Item 1<Option Selected>Item 2</Select>" _
+ "<Input ID=""IDV2"" Type=""Text"" Name=""V2"" Value=""This value is ok"">" _
+ "<Input ID=""IDV3"" Type=""Submit"" Name=""V3"" Value=""Submit"">" _
+ "</Form></Body></html>"
' load the html into the browser
WebBroweser1.Document.writ
DoEvents
' link the form element to that the Submit button can be trapped.
Set HFORM = WebBroweser1.Document.getE
End Sub
Private Function HFORM_onsubmit() As Boolean
Dim HELEMENT As MSHTML.HTMLGenericElement
Dim SELEL As MSHTML.HTMLSelectElement
' display the data from the form
Dim m$
m$ = "The values found were as follows:" + vbCrLf
Set SELEL = WebBroweser1.Document.getE
' The following line fails to get the value
' of the select box
m$ = m$ + "IDV1=" + SELEL.getAttribute("Value"
Set HELEMENT = WebBroweser1.Document.getE
m$ = m$ + "IDV2=" + HELEMENT.getAttribute("Val
Set HELEMENT = WebBroweser1.Document.getE
m$ = m$ + "IDV3=" + HELEMENT.getAttribute("Val
Set HELEMENT = Nothing
HFORM_onsubmit = False
MsgBox m$
End Function
ASKER CERTIFIED SOLUTION
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ASKER
I am very new to DHTML, but I have done quite a bit of JavaScript. I realy found that it was hard debugging the scripts, compared to VB. AzraSound what tool do you use for debugging your DHTML
ASKER
m$ = m$ + "IDV1=" + SELEL.Options(SELEL.select