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icorewebview2experimentalscriptexception.md

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description title ms.date keywords
This interface represents a JavaScript exception.
WebView2 Win32 C++ ICoreWebView2ExperimentalScriptException
12/13/2022
IWebView2, IWebView2WebView, webview2, webview, win32 apps, win32, edge, ICoreWebView2, ICoreWebView2Controller, browser control, edge html, ICoreWebView2ExperimentalScriptException

interface ICoreWebView2ExperimentalScriptException

[!INCLUDE deprecation-note]

[!INCLUDE prerelease-note]

interface ICoreWebView2ExperimentalScriptException
  : public IUnknown

This interface represents a JavaScript exception.

Summary

Members Descriptions
get_ColumnNumber The column number of the source where the exception occurred.
get_LineNumber The line number of the source where the exception occurred.
get_Message The Message is the exception's message and potentially stack.
get_Name The Name is the exception's class name.
get_ToJson This will return all details of the exception as a JSON string.

If the CoreWebView2.ExecuteScriptWithResult result has Succeeded as false, you can use the result's Exception property to get the script exception.

Applies to

Product Introduced
WebView2 Win32 N/A
WebView2 Win32 Prerelease

Members

get_ColumnNumber

The column number of the source where the exception occurred.

public HRESULT get_ColumnNumber(UINT32 * value)

In the JSON it is exceptionDetail.columnNumber. Note that this position starts at 0.

get_LineNumber

The line number of the source where the exception occurred.

public HRESULT get_LineNumber(UINT32 * value)

In the JSON it is exceptionDetail.lineNumber. Note that this position starts at 0.

get_Message

The Message is the exception's message and potentially stack.

public HRESULT get_Message(LPWSTR * value)

In the JSON it is exceptionDetail.exception.description. This is the empty string if the exception doesn't have a description. This can happen if the script throws a non-Error object such as throw "abc";.

get_Name

The Name is the exception's class name.

public HRESULT get_Name(LPWSTR * value)

In the JSON it is exceptionDetail.exception.className. This is the empty string if the exception doesn't have a class name. This can happen if the script throws a non-Error object such as throw "abc";

get_ToJson

This will return all details of the exception as a JSON string.

public HRESULT get_ToJson(LPWSTR * value)

In the case that script has thrown a non-Error object such as throw "abc"; or any other non-Error object, you can get object specific properties.