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具體更新內容如下：

已解決的問題

該列表包含了v17.2.8中解決的所有問題：

Data Grid

• ?- A validation message is shown many times if DataGrid works in virtual mode
• ?- Can't resize a fixed column if resizing is not enabled for the next fixed column
• ?- DataGrid - Calling editRow after filtering throws the "Cannot read property 'data' of undefined" error
• ?- DataGrid - Header cells are sometimes misaligned with grid content if horizontal scrolling is enabled on 200 dpi screens
• ?- DataGrid - It is necessary to keep the column size with the disabled allowResizing field
• ?- DataGrid - The columnOption method sets an option for a wrong column when using multi-row columns
• ?- DataGrid - The format option is not taken into account on exporting to Excel if it's specified as a function
• ?- DataGrid - The getCellElement method returns an incorrect cell element in "form" editing mode if the visible column option is disabled
• ?- DataGrid - The Lookup column option setting operates incorrectly if the grid contains banded columns
• ?- DataGrid - The title element is generated for HTML in the masterDetail template
• ?- DataGrid changes the pageSize option if the option value is zero when the state storing is enabled
• ?- DataGrid displays an incorrect number of records if the widget is grouped by three or more columns and groupPaging is enabled
• ?- DataGrid displays data incorrectly when records are grouped by a field that has the 'null' value in several records
• ?- Documentation - Add a note that relative column width is not appropriate for fixed columns in DataGrid
• ?- dxDataGrid - The "Select all" checkbox has a wrong value in deferred selection mode
• ?- dxDataGrid freezes on scrolling when a column with the specified datatype has a null value
• ?- Excel crashes when using Excel's 'Text to Columns' functionality in the exported file
• ?- Menu placed in the DataGrid cell template displays the Down arrow after upgrade to 17.2.7
• ?- The "Cannot create property 'summary' on string 'success'" error occurs when the infinite scrolling is used and the grid gets its data source from an AJAX request
• ?- The Grid adds unnecessary group footer rows for summaries when infinite scrolling is used

Data Visualization

• ?- Chart - A stacked spline area shows an extra series
• ?- dxChart - Points are not connected in the Range Area series
• ?- PieChart - Elements' order differs form the underlying datasource items' order
• ?- PieChart - Label connectors cross other labels if resolveLabelOverlapping is "shift" in certain scenarios
• ?- PieChart - Label text is cut off
• ?- The Chart does not calculate its initial value axis range correctly

DevExtreme Core

• ?- A typescript definition is wrong for the base64_encode method after upgrading to version 17.2.7
• ?- Documentation - Add a note that localization keys should not be used from JS
• ?- NumberBox - Standard formats incorrectly work when Globalize is included
• ?- NumberBox with the format option specified works incorrectly if the Poland locale is applied using Intl
• ?- Template methods don't replace previously set values
• ?- The Promise.catch callback function is not called when the ODataStore.insert method fails
• ?- The 'valueChanges' event unexpectedly fires when a reactive form is used with the DxTextBox component

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