Question

我有一个Infragistics 15.1 WPF XamDataGrid，当用户将数据保存在表单的其他位置时会刷新。我已经想出如何以编程方式选择保存前选择的行。我的问题是，如果该行不是网格上的顶行之一，则用户必须向下滚动到突出显示的行。有没有办法让网格滚动到选定的行？

XAML代码

 <inf:XamDataGrid GroupByAreaLocation="None"                               
                             SelectedDataItem="{Binding SelectedPayItem, Mode=TwoWay}"
                             ActiveDataItem="{Binding SelectedPayItem, Mode=OneWay}"
                             DataSource="{Binding SelectedProject.ContractProjectPayItems}" ScrollViewer.VerticalScrollBarVisibility="Auto"

                             Grid.Row="2" Grid.Column="2" Grid.ColumnSpan="2" Margin="2.8,3.4,3,2.8">

查看型号代码

  private void SetSelectedPayItem()
    {
        if (SelectedProject != null)
        {
            if (SelectedProject.ContractProjectPayItems.Count() > 0)
            {
                if (SelectedProject.SelectedPayItemLineNbr == -1)
                {
                      SelectedPayItem = SelectedProject.ContractProjectPayItems.First(); 
                }
                else
                {
                    if (strLineItemNbr != null)
                    {
                       SelectedPayItem = SelectedProject.ContractProjectPayItems.FirstOrDefault(CPPI => CPPI.LineItemNbr == strLineItemNbr);
                    }
                    else
                    { SelectedPayItem = SelectedProject.ContractProjectPayItems[SelectedProject.SelectedPayItemLineNbr]; }
                }
            }
            else
            {
                SelectedPayItem = null;
            }
        }
    }

    string strLineItemNbr;
    private ContractProjectPayItemModel _selectedPayItem;
    public ContractProjectPayItemModel SelectedPayItem
    {
        get { return _selectedPayItem; }
        set
        {
            _selectedPayItem = value;
            if (_selectedPayItem != null)
            {
                SelectedProject.SelectedPayItemLineNbr = SelectedProject.ContractProjectPayItems.IndexOf(_selectedPayItem);
                if (_selectedPayItem.ItemInstallations == null)
                {
                    var oItemInstallation = new clsItemInstallation();
                    _selectedPayItem.ItemInstallations = oItemInstallation.GetItemInstallsByProjectPayItem(_selectedPayItem.ProjectGuid, _selectedPayItem.PayItemGuid);

                    foreach (var itemInstallation in _selectedPayItem.ItemInstallations)
                    {
                        itemInstallation.PropertyChanged += ItemInstallationsPropertyChanged;
                        itemInstallation.AcceptChanges();
                    }
                    _selectedPayItem.AcceptChanges();
                    foreach (var ii in SelectedProject.ContractProjectPayItems)
                    {
                        if (ii.ItemInstallations != null)
                        {
                            foreach (var i2 in ii.ItemInstallations)
                            {
                                i2.AcceptChanges();
                            }
                        }
                    }
                    RaisePropertyChanged("TotalInstallQty");
                }
                _itemInstallViewModel.SelectedProjectLineItem = SelectedPayItem;
                strLineItemNbr = SelectedPayItem.LineItemNbr;
            }
            RaisePropertyChanged("SelectedPayItem");
            RaisePropertyChanged("IsBitumen");

            //----------------------------------
            // Populate the User Control tabs.
            //----------------------------------
            PopulateUserControls();

            SetSelectedItemInstallation();

            RaisePropertyChanged("TotalInstallQty");
        }
    }

Answer 1

通过在DataSource属性中移动SelectedDataItem，我能够以我想要的方式运行。

<inf:XamDataGrid GroupByAreaLocation="None"             
                         DataSource="{Binding SelectedProject.ContractProjectPayItems}" 
                         ScrollViewer.VerticalScrollBarVisibility="Auto" 
                         SelectedDataItem="{Binding SelectedPayItem, Mode=TwoWay}" 
                         ActiveDataItem="{Binding SelectedPayItem, Mode=TwoWay}"
                         Grid.Row="2" Grid.Column="2" Grid.ColumnSpan="2" Margin="2.8,3.4,3,2.8">
        </inf:XamDataGrid>

滚动到XamDataGrid中的Selected Row

1 个答案: