Wisej.Web.WebBrowser.eavl(JS) do not works
In this code, please advise:
Public Class CTreeView_basic_01_ForBooks
Inherits TreeView
Dim OWebBrowser As Wisej.Web.WebBrowser
Public Sub New(INOGuid As Guid, ByRef INoWebBrowser As Wisej.Web.WebBrowser)
OWebBrowser = INoWebBrowser
With Me
.Dock = DockStyle.Fill
.ShowPlusMinus = True
.ShowRootLines = True
.ShowNodeToolTips = True
End With
End Sub
Private Sub CTreeView_basic_01_NodeMouseClick(sender As Object, e As TreeNodeMouseClickEventArgs) Handles Me.NodeMouseClick
Dim OTreeNode As TreeNode = e.Node
Dim searchText As String = OTreeNode.Text
Dim js As String =
“var found = false;
var el = document.body;
if (el.innerText.includes(‘” & searchText.Replace(“”””, “\”””) & “‘)) {
el.style.backgroundColor = ‘yellow’;
found = true;
}
if (!found) alert(‘Nothing Found’);”
OWebBrowser.Eval(js)
End Sub
End Class
When it is in tje test application (pllease find attached) I at least receive “Nothing found” message.
When iti si in a contro – there is nothing! Why so?
Public Class C_Books_Container
Inherits Panel
Private ОWebBrowser As New CUtils.CInterfaceIni.CInterface.C_Wisej_Web_WebBrowser
Public WithEvents OTV As New CUtils.CInterfaceIni.CInterface.CTreeViewS.CTreeView.CTreeView_basic_01(Guid.NewGuid)
Private OSplitContainer As New SplitContainer
Public Sub New(INOStrURLText As String, INOSTRDelimiter As String, INOSTRDelimiter_Internal As String)
ОWebBrowser.Dock = DockStyle.Fill
OTV.Dock = DockStyle.Fill
With OSplitContainer
.Dock = DockStyle.Fill
.Panel1.Controls.Add(OTV)
.Panel2.Controls.Add(ОWebBrowser)
End With
ОWebBrowser.Url = New Uri(INOStrURLText)
Dim OStringPageContent As String = GetTextFromUrl(INOStrURLText)
F_TableОfContents_Get(OTV, OStringPageContent, INOSTRDelimiter, INOSTRDelimiter_Internal)
Me.Dock = DockStyle.Fill
Me.Controls.Add(OSplitContainer)
End Sub
Private Sub OTV_NodeMouseClick(sender As Object, e As TreeNodeMouseClickEventArgs) Handles OTV.NodeMouseClick
Dim searchText = “5”
Dim js As String =
”
var found = false;
var elements = document.getElementsByTagName(‘*’);
for (var i = 0; i < elements.length; i++) {
if (elements[i].innerText && elements[i].innerText.includes(‘” & searchText.Replace(“”””, “\”””) & “‘)) {
elements[i].scrollIntoView({behavior: ‘smooth’, block: ‘center’});
elements[i].style.backgroundColor = ‘yellow’;
found = true;
break;
}
}
if (!found) {
alert(‘Nothing found.’);
}
”
ОWebBrowser.Eval(js)
End Sub
End Class
Javascript is executed by the browser. So I used google and found why your “code” doesn’t work.
https://stackoverflow.com/ questions/3999101 /get-iframes-document-from-javascript-in- main- document
Nothing at all, complete silence and darkness.
Hi,
“does not work” means what? Do you get an error in the console?
We need a test case with a clear indication of expected result to check this.
Best regards
Frank
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