DataGrid中的SelectedIndex。滚动期间的值为-1 [英] SelectedIndex in DataGrid. Value -1 during scrolling

问题描述

我有一个带滚动的dataGrid。

I have a dataGrid with a scroll.

网格被抛入一个高度为6的StackPanel来自DataGrid的行是可见的。

Grid is thrown into a StackPanel of such height that 6 lines from DataGrid are visible.

每行都有一个具有不同项目数的ComboBox。如果dataGrid中的行多于8，则在使用滚动时，当鼠标位于DataGrid上方时，SelectedIndex将更改为-1。对于不同的ComboBox位置，这会随机发生。

Each row has a ComboBox with different number of items. If there are more lines in dataGrid than 8 then when using the scroll, when the mouse is above the DataGrid, SelectedIndex changes to -1. This happens randomly for different ComboBox positions.

仅当行数超过8行时才会出现这种情况。

The situation only occurs when there are more than 8 rows.

我可以阻止如下降到0以下，但这不是断开连接。这会导致其他问题。

I can block as below descending below 0 but this is not a disconnect. This causes other problems.

public int SelectedIndex
        {
            get { return _SelectedIndex; }
            set
            {
                _SelectedIndex = (value >= 0) ? value : 0;
                Console.WriteLine("SelectedIdx: " + value);
                //_SelectedIndex = value;
                OnPropertyChanged("");
            }
        }

任何有类似问题的人都可以见面吗？

Can anyone with a similar problem meet?

推荐答案

什么是更改数据网格或组合框的选定索引？

What is changing the selected index of the datagrid or the combobox?

同样看到一些XAML会有所帮助，因为StackPanel不会限制它内容到它的高度。

Also seeing some XAML would help as a StackPanel does not restrict its content to its height.

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