I did not see any attachment in your previous post.

However, based on the description of the issue, I suspect the issue is caused by the incomplete Italian localization. You will need to add the Paging related localization in the wglang_it-IT.xml.

A quick comparison between the wglang_it-IT.xml and default.xml in the common library WebGrid localization folder, default location in C:\Program Files\Intersoft Solutions\WebUI Studio for ASP.NET\CommonLibrary\WebGrid\V7_0_7200\Localization, show that these paging related node is missing in the Italian localization:
- Tooltip/PagingFirst
- Tooltip/PagingPrev
- Tooltip/PagingNext
- Tooltip/PagingLast
- Tooltip/PagingGoTo
- Tooltip/PagingSlider
- Paging/PageFormat

You are correct, the snippet for OnExitEditMode event handler logic will set the ProductName cell value to empty if the inserted ProductId is not on the list. I highlighted the responsible line that will set the ProductName value if the ProductId is not in the list.

function OrderDetails_WebGrid_OnExitEditMode(controlId, tblName, editObject)
{
    var wg = ISGetObject(controlId);
    var cellObj = editObject.ToCellObject();
    if (cellObj.Name == "ProductID_WebGridColumn")
    {
        if (editObject.element.IsInProgress)
        {
            editObject.ToCellObject().Select(true, true);
            return false;
        }
        else
        {
            if (editObject.element.GetTextBoxValue() != editObject.element.Value)
            {
                editObject.element.Value = editObject.element.GetTextBoxValue();
                editObject.element.LoadValue(true);
            }

            if (editObject.element.GetSelectedRow() != null)
            {
                cellObj.GetRow().GetCell('ProductName_WebGridColumn').SetText(editObject.element.GetSelectedRow().cells[1].innerText);
                cellObj.GetRow().GetCell('ProductName_WebGridColumn').SetValue(editObject.element.GetSelectedRow().cells[1].innerText);

                setTimeout(function()
                {
                    cellObj.GetRow().GetCell('ProductID_WebGridColumn').SetText(editObject.element.GetSelectedRow().cells[0].innerText);
                    cellObj.GetRow().GetCell('ProductID_WebGridColumn').SetValue(editObject.element.GetSelectedRow().cells[0].innerText);
                }, 5);
            }
            else
            {
                cellObj.GetRow().GetCell('ProductName_WebGridColumn').SetText("");
                cellObj.GetRow().GetCell('ProductName_WebGridColumn').SetValue("");
            }
        }
    }

    return true;
}

Feel free to modify them to fit your scenario.

Sorry for the the misunderstanding.

Currently, StackGridTextObject will have the same behavior with the ToolTipTextObject. Only the global setting will be modifying the stack grid text style, the individual setting will be overrriden by WebFishEye internal process.

Modifying the stack grid text "Stack Menu" is not currently possible in the latest release of WebFishEye.

You could try checking the TextBoxValue of the WebCombo and try to load the selected item from the TextBoxValue. Here is the snippet:

function OrderDetails_WebGrid_OnExitEditMode(controlId, tblName, editObject)
{
    var wg = ISGetObject(controlId);

    var cellObj = editObject.ToCellObject();
    
    if (cellObj.Name == "ProductID_WebGridColumn")
    {
        if (editObject.element.IsInProgress)
        {
            editObject.ToCellObject().Select(true, true);
            return false;
        }
        else
        {
            if (editObject.element.GetTextBoxValue() != editObject.element.Value)
            {
                editObject.element.Value = editObject.element.GetTextBoxValue();
                editObject.element.LoadValue(true);
            }

            if (editObject.element.GetSelectedRow() != null)
            {
                cellObj.GetRow().GetCell('ProductName_WebGridColumn').SetText(editObject.element.GetSelectedRow().cells[1].innerText);
                cellObj.GetRow().GetCell('ProductName_WebGridColumn').SetValue(editObject.element.GetSelectedRow().cells[1].innerText);

                setTimeout(function()
                {
                cellObj.GetRow().GetCell('ProductID_WebGridColumn').SetText(editObject.element.GetSelectedRow().cells[0].innerText);
                cellObj.Get Row().GetCell('ProductID_WebGridColumn').SetValue(editObject.element.GetSelectedRow().cells[0].innerText);
                }, 5);
            }
            else
            {
                cellObj.GetRow().GetCell('ProductName_WebGridColumn').SetText("");
                cellObj.GetRow().GetCell('ProductName_WebGridColumn').SetValue("");
            }
        }
    }

    return true;
}

You will also need to set the ProductID column to the textbox value because under certain condition the Value is not updated with the TextBoxValue.