使用repositoryItemLookUpEdit遇到下拉值消失的问题

[stayweb]

gridView里有两列需要使用repositoryItemLookUpEdit控件，其中第2列是依据第1列的值发生数据源的变化

添加第一行的时候，第2列是正常的，到第2行的时候，选择第2列，第一行的第2列就消失掉了，请教高手帮我看看代码

        private void gvDetail_CustomRowCellEditForEditing(object sender, DevExpress.XtraGrid.Views.Grid.CustomRowCellEditEventArgs e)
        {
            RepositoryItemLookUpEdit lookup = (col_SanJiKeMu.ColumnEdit as RepositoryItemLookUpEdit);
            DataSet ds_SanJiKeMu = new DataSet();

            switch (e.Column.FieldName)
            {
                case "SanJiKeMu":

                    string ErJiKeMu = gvDetail.GetRowCellValue(e.RowHandle, "ErJiKeMu").ToString();
                    if (ErJiKeMu != null && ErJiKeMu != "")
                    {
                        ds_SanJiKeMu = bll_KeMu.GetList("kemu_prev_id='" + ErJiKeMu + "' AND kemu_type='三级科目'");

                    }
                    if (ds_SanJiKeMu != null)
                    {
                        lookup.DataSource = ds_SanJiKeMu.Tables[0];
                        lookup.ValueMember = "kemu_id";
                        lookup.DisplayMember = "kemu_name";
                        lookup.NullText = string.Empty;

                        lookup.EditValueChanged += new EventHandler(lookup_EditValueChanged);
                        lookup.ParseEditValue += new DevExpress.XtraEditors.Controls.ConvertEditValueEventHandler(lookup_ParseEditValue);
                        e.RepositoryItem = lookup;
                    }

                    break;
                default: break;
            }
        }

        private void lookup_EditValueChanged(object sender, EventArgs e)
        {
            DevExpress.XtraEditors.BaseEdit edit = gvDetail.ActiveEditor;
            switch (gvDetail.FocusedColumn.FieldName)
            {
                case "SanJiKeMu":
                    gvDetail.SetFocusedRowCellValue(gvDetail.Columns["SanJiKeMu"], edit.EditValue);
                    break;
            }
        }

        private void lookup_ParseEditValue(object sender, DevExpress.XtraEditors.Controls.ConvertEditValueEventArgs e)
        {
            e.Value = e.Value.ToString();
            e.Handled = true;
        }

[熙风]

引用 楼主 stayweb 的回复:

gridView里有两列需要使用repositoryItemLookUpEdit控件，其中第2列是依据第1列的值发生数据源的变化 添加第一行的时候，第2列是正常的，到第2行的时候，选择第2列，第一行的第2列就消失掉了，请教高手帮我看看代码

        private void gvDetail_CustomRowCellEditForEditing(object sender, DevExpress.XtraGrid.Views.Grid.CustomRowCellEditEventArgs e)
        {
            RepositoryItemLookUpEdit lookup = (col_SanJiKeMu.ColumnEdit as RepositoryItemLookUpEdit);
            DataSet ds_SanJiKeMu = new DataSet();

            switch (e.Column.FieldName)
            {
                case "SanJiKeMu":

                    string ErJiKeMu = gvDetail.GetRowCellValue(e.RowHandle, "ErJiKeMu").ToString();
                    if (ErJiKeMu != null && ErJiKeMu != "")
                    {
                        ds_SanJiKeMu = bll_KeMu.GetList("kemu_prev_id='" + ErJiKeMu + "' AND kemu_type='三级科目'");

                    }
                    if (ds_SanJiKeMu != null)
                    {
                        lookup.DataSource = ds_SanJiKeMu.Tables[0];
                        lookup.ValueMember = "kemu_id";
                        lookup.DisplayMember = "kemu_name";
                        lookup.NullText = string.Empty;

                        lookup.EditValueChanged += new EventHandler(lookup_EditValueChanged);
                        lookup.ParseEditValue += new DevExpress.XtraEditors.Controls.ConvertEditValueEventHandler(lookup_ParseEditValue);
                        e.RepositoryItem = lookup;
                    }

                    break;
                default: break;
            }
        }

        private void lookup_EditValueChanged(object sender, EventArgs e)
        {
            DevExpress.XtraEditors.BaseEdit edit = gvDetail.ActiveEditor;
            switch (gvDetail.FocusedColumn.FieldName)
            {
                case "SanJiKeMu":
                    gvDetail.SetFocusedRowCellValue(gvDetail.Columns["SanJiKeMu"], edit.EditValue);
                    break;
            }
        }

        private void lookup_ParseEditValue(object sender, DevExpress.XtraEditors.Controls.ConvertEditValueEventArgs e)
        {
            e.Value = e.Value.ToString();
            e.Handled = true;
        }

你联动改变的时候，repositoryItemLookUpEdit 绑定的数据已经变了，匹配不了第一行的数据，所以被清空了， 要做联动你就得绑定不同的repositoryItemLookUpEdit ，不能用同一个 ，使用同一个repositoryItemLookUpEdit 的场景是所有行绑定是同一个数据源

[stayweb]

谢谢，@happy09li 我再试试

[stayweb]

问题找到了，结贴