c# - 如何在按钮单击 wpf 时滚动浏览每个 Datagrid 项目

Question

我有一个DataGrid和两个向上和向下按钮，以便用户可以在单击按钮时滚动浏览每个数据网格项目；向上或向下。我该怎么做呢？我已经尝试过SelectedIndex，但似乎不适用于DataGrid.

示例代码：

    private void btnDownCheckedMedication_Click(object sender, RoutedEventArgs e)
    {
        if (MedicationCheckedInDatagrid.SelectedIndex > 0)
        {
            MedicationCheckedInDatagrid.SelectedIndex = MedicationCheckedInDatagrid.SelectedIndex - 1;
        }
    }

    private void btnUpCheckedMedication_Click(object sender, RoutedEventArgs e)
    {
        MedicationCheckedInDatagrid.SelectedIndex = MedicationCheckedInDatagrid.SelectedIndex + 1;
    }

Answer 1

您几乎拥有它...SelectedItem改用：

private void btnDownCheckedMedication_Click( object sender, RoutedEventArgs e )
{
    if(dataGrid.SelectedIndex > 0 ) {
        dataGrid.SelectedItem = dataGrid.Items[dataGrid.SelectedIndex - 1];
    }
}

private void btnUpCheckedMedication_Click( object sender, RoutedEventArgs e )
{
    if(dataGrid.SelectedIndex < dataGrid.Items.Count - 1) {
        dataGrid.SelectedItem = dataGrid.Items[dataGrid.SelectedIndex + 1];
    }
}