Question

我目前正在使用Telerik的RadGridView来显示数据库中的数据。我想要的数据加载到gridview中，我还添加了三个额外的列，供用户输入其他信息。

我遇到的问题是，当您在其中一个空单元格中输入信息并单击行/列时，我输入的信息就会消失。我已经搜索了与此相关的每个论坛，我认为我使用gridView.Items.CommitEdit得到了正确的代码，但是我输入空单元格的信息仍然消失了。以下是创建额外列的代码：

private void Window_Loaded(object sender, RoutedEventArgs e)
    {
        //Loads queries from each of the designated data tables in BSI_Test
        var customerQuery =
            (from customer in testEntity.Customers
             join job in testEntity.Jobs
             on customer.CID equals job.CID
             join claim in testEntity.Claims
             on job.JID equals claim.JID
             select new
             {
                 Customer_Name = customer.CName,
                 Customer_Id = customer.CID,
                 Job_Id = job.JID,
                 Claim_Id = claim.CLAIMID,
                 DID = DeductId,
                 Check_No = CheckNo,
                 Check_Date = CheckDate
             })
            .OrderBy(c => c.Customer_Name);


        //Populates the Telerik data grid with data.
        gridView.ItemsSource = customerQuery.ToList();


        GridViewDataColumn deductId = new GridViewDataColumn();
        deductId.UniqueName = "DeductId";
        deductId.Header = "DID";
        deductId.DataMemberBinding = new Binding("DeductId");
        gridView.Columns.Add(deductId);

        GridViewDataColumn checkNo = new GridViewDataColumn();
        checkNo.UniqueName = "CheckNo";
        checkNo.Header = "Check No";
        checkNo.DataMemberBinding = new Binding("CheckNo");
        gridView.Columns.Add(checkNo);

        GridViewDataColumn checkDate = new GridViewDataColumn();
        checkDate.UniqueName = "CheckDate";
        checkDate.Header = "Check Date";
        checkDate.DataMemberBinding = new Binding("CheckDate");
        gridView.Columns.Add(checkDate);
    }

这是我的gridView_CellEditEnded事件，它尝试提交对列进行的任何编辑。注意：我使用断点测试了这个事件，当我在单元格中键入信息并单击它时，它确实通过if语句。但是，我输入的数据仍然消失，因此CommitEdit似乎无法正常工作。

bool handle = true;
private void gridView_CellEditEnded(object sender, GridViewCellEditEndedEventArgs e)
{
    if (e.EditAction == GridViewEditAction.Commit && handle)
    {
        handle = false;
        gridView.Items.EditItem(this.gridView.CurrentItem);
        gridView.Items.CommitEdit();
        handle = true;
    }
}

如果有人能够帮助我解决这个问题，我们将不胜感激。对于我的代码有什么问题我真的很困惑。

修改我已更新Window_Loaded事件的代码，以显示查询从数据库到数据网格的信息的linq查询。然后将ItemsSource作为列表设置为此查询。下面是我MainWindow()方法之前的所有内容，我为DeductId，CheckNo和CheckDate设置了属性。

public string DeductId { get; set; }
public int CheckNo { get; set; }
public string CheckDate { get; set; }

public MainWindow()
{
    InitializeComponent();
}

修改现在我已将DeductId，CheckNo和CheckDate属性添加到linq查询中。

修改这是DataProperties类：

public partial class DataProperties
{
    public string CName { get; set; }
    public int CID { get; set; }
    public int JID { get; set; }
    public int CLAIMID { get; set; }
    public string DeductId { get; set; }
    public string CheckNo { get; set; }
    public string CheckDate { get; set; }
}

Answer 1

您应该将每列的DataMemberBinding属性设置为Binding对象：

private void Window_Loaded(object sender, RoutedEventArgs e)
{
    GridViewDataColumn deductId = new GridViewDataColumn();
    deductId.UniqueName = "DeductId";
    deductId.Header = "DID";
    deductId.DataMemberBinding = new System.Windows.Data.Binding("DeductId");
    gridView.Columns.Add(deductId);

    GridViewDataColumn checkNo = new GridViewDataColumn();
    checkNo.UniqueName = "CheckNo";
    checkNo.Header = "Check No";
    deductId.DataMemberBinding = new System.Windows.Data.Binding("CheckNo");
    gridView.Columns.Add(checkNo);

    GridViewDataColumn checkDate = new GridViewDataColumn();
    checkDate.UniqueName = "CheckDate";
    checkDate.Header = "Check Date";
    deductId.DataMemberBinding = new System.Windows.Data.Binding("CheckDate");
    gridView.Columns.Add(checkDate);
}

您还需要确保T IEnumerable<T>的{{1}}类型ItemsSource实际上包含RadGridView DeductId ，CheckNo和CheckDate属性，并且每个属性都有一个公共设置器。

绑定到匿名类型的对象集合不会起作用。您需要创建一个包含所有属性的类（Customer_Name，Customer_Id，Job_Id，Claim_Id，DeductId，CheckNo和CheckDate），并为那些您希望能够在RadGridView中编辑的人设置公共设置器：

var customerQuery =
           (from customer in testEntity.Customers
            join job in testEntity.Jobs
            on customer.CID equals job.CID
            join claim in testEntity.Claims
            on job.JID equals claim.JID
            select new YourClass //<--
            {
                Customer_Name = customer.CName,
                Customer_Id = customer.CID,
                Job_Id = job.JID,
                Claim_Id = claim.CLAIMID,
                DID = DeductId,
                Check_No = CheckNo,
                Check_Date = CheckDate
            })
           .OrderBy(c => c.Customer_Name);

无法在RadGridView Telerik WPF中编辑单元格

1 个答案: