C# DevExpress xtragrid datetime不显示小时和分钟

在我的datagrid中，我有一个DateTime字段，它不显示小时和分钟。好吧，至少它显示00:00，但我的DateTime值不能是00:00。我使用这个时间格式字符串“dd-MM-yyy-HH:MM”

当我在弹出窗口中显示DateTime值时，它会显示小时和分钟（以及秒），所以不能是00:00：

如何强制datagrid显示小时和分钟

这是我的代码：

namespace DXWindowsApplication1
{
    public partial class Form1 : XtraForm
    {
        public Form1()
        {
            InitializeComponent();
            InitGrid();

        }
        BindingList<Message> gridDataList = new BindingList<Message>();
        void InitGrid()
        {
            /*gridDataList.Add(new Message("joepie de poepie test \n joep meloen hallo \n mhooooo", "username", new DateTime(2008)));
            gridDataList.Add(new Message("test message 2 \n kitkat android \n toktoktoktotktotktokt", "Pipo", new DateTime(2005)));
            gridDataList.Add(new Message("test message 2 \n kitkat android \n toktoktoktotktotktokt", "Pipo", new DateTime(2006)));
            gridDataList.Add(new Message("test message 2 \n kitkat android \n toktoktoktotktotktokt", "Pipo", new DateTime(2007)));*/
            gridControl1.DataSource = gridDataList;
            gridView1.ExpandAllGroups();
        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }

        private void simpleButton1_Click(object sender, EventArgs e)
        {
            gridDataList.Add(new Message(memoEdit1.Text, "username", DateTime.Now));
            gridView1.ExpandAllGroups();
            memoEdit1.Text = "";
        }

    }
}

---

DateTime

值在XtraGrid中自动分组为日期，除非列的

GroupInterval

属性明确设置为

Value

上的DevExpress文档中描述了此行为

---

旁注：如果您没有对

CustomUnboundColumnData

进行任何处理，请不要设置

UnboundType

属性。您可以使用

RepositoryItemDateEdit

在网格中显示时间，并分配

VistaEditTime=DevExpress.Utils.DefaultBoolean.True

例如

---

你所展示的是一个小组赛。它在单元格中是如何显示的？您是否在DateEditRepositoryItem或列本身上设置了格式？我已将GroupFormat属性设置为

DateTime“dd-MM-yyy-HH:MM”

，该值来自绑定到datagrid的对象。我对列进行了分组。GroupInterval属性设置为默认值。请显示CustomUnboundColumnData事件处理代码。我没有CustomUnboundColumnData事件。我刚刚发布了我所有的代码。

            // colsendTime
            // 
            this.colsendTime.AppearanceCell.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(255)))), ((int)(((byte)(128)))), ((int)(((byte)(128)))));
            this.colsendTime.AppearanceCell.Options.UseBackColor = true;
            this.colsendTime.Caption = "Verzonden op";
            this.colsendTime.DisplayFormat.FormatString = "dd-MM-yyyy HH:mm";
            this.colsendTime.DisplayFormat.FormatType = DevExpress.Utils.FormatType.DateTime;
            this.colsendTime.FieldName = "sendTime";
            this.colsendTime.GroupFormat.FormatString = "dd-MM-yyyy HH:mm";
            this.colsendTime.GroupFormat.FormatType = DevExpress.Utils.FormatType.DateTime;
            this.colsendTime.Name = "colsendTime";
            this.colsendTime.OptionsColumn.ReadOnly = true;
            this.colsendTime.UnboundType = DevExpress.Data.UnboundColumnType.DateTime;
            this.colsendTime.Visible = true;
            this.colsendTime.VisibleIndex = 2;

DevExpress.XtraEditors.Repository.RepositoryItemDateEdit oItem = New DevExpress.XtraEditors.Repository.RepositoryItemDateEdit();

oItem.DisplayFormat.FormatString = "dd-MM-yyyy HH:mm"
oItem.EditFormat.FormatString = "dd-MM-yyyy HH:mm"
oItem.VistaEditTime = DevExpress.Utils.DefaultBoolean.True
this.colsendTime.ColumnEdit = oItem
this.colsendTime.AppearanceCell.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(255)))), ((int)(((byte)(128)))), ((int)(((byte)(128)))));
this.colsendTime.AppearanceCell.Options.UseBackColor = true;
this.colsendTime.Caption = "Verzonden op";
this.colsendTime.Name = "colsendTime";
this.colsendTime.OptionsColumn.ReadOnly = true;
this.colsendTime.UnboundType = DevExpress.Data.UnboundColumnType.DateTime;
this.colsendTime.Visible = true;
this.colsendTime.VisibleIndex = 2;