Question

我正在尝试使用ItemCommand事件在RadGrid中插入新项目。但在此之后无法关闭编辑表格。

这是我的aspx中的代码 -

<telerik:RadGrid ID="rgItems" Skin="Metro" runat="server" AutoGenerateColumns="false" Width="100%"
    AllowAutomaticInserts="true"
    MasterTableView-CommandItemSettings-ShowRefreshButton="false"
    OnNeedDataSource="rgItems_NeedDataSource" OnItemCommand="rgItems_ItemCommand">

    <MasterTableView CommandItemDisplay="Top" AllowAutomaticInserts="true" CommandItemSettings-ShowAddNewRecordButton="true">
        <EditFormSettings EditFormType="Template">
            <FormTemplate>
                <asp:Panel ID="pnlNewItem" runat="server" DefaultButton="btnInsert">
                    <div class="form-group">
                            <asp:TextBox ID="txtClass" runat="server" CssClass="form-control" placeholder="Enter Class" Text='<%# Eval("Class") %>'></asp:TextBox>
                    </div>
                    <div class="form-group">
                            <asp:TextBox ID="txtWeight" runat="server" CssClass="form-control" placeholder="Enter Weight" Text='<%# Eval("Weight") %>'></asp:TextBox>
                    </div>

                    <div class="box-footer">
                        <asp:Button ID="btnCancel" runat="server" Text="Cancel" class="btn btn-default" CommandName="Cancel" />
                        <asp:Button ID="btnInsert" runat="server" class="btn btn-info pull-right"
                            CommandName='<%# (Container is GridEditFormInsertItem) ? "PerformInsert" : "Update" %>'
                            Text='<%# (Container is GridEditFormInsertItem) ? "Add Item" : "Update" %>' />
                    </div>
                </asp:Panel>
            </FormTemplate>
        </EditFormSettings>
        <Columns>
            <telerik:GridTemplateColumn HeaderText="Class">
                <ItemTemplate>
                    <asp:Label ID="lblClass" runat="server" placeholder="Enter Class" Text='<%# Eval("Class") %>'></asp:Label>
                </ItemTemplate>
            </telerik:GridTemplateColumn>
            <telerik:GridTemplateColumn HeaderText="Weight">
                <ItemTemplate>
                    <asp:Label ID="lblWeight" runat="server" placeholder="Enter Weight" Text='<%# Eval("Weight") %>'></asp:Label>
                </ItemTemplate>
            </telerik:GridTemplateColumn>
        </Columns>
    </MasterTableView>
</telerik:RadGrid>

以下是ItemCommand事件中的代码 -

protected void rgItems_ItemCommand(object sender, Telerik.Web.UI.GridCommandEventArgs e)
{

        DataTable dtItems_Global = new DataTable();
        dtItems_Global.Columns.Add(new DataColumn("Class", typeof(string)));
        dtItems_Global.Columns.Add(new DataColumn("Weight", typeof(string)));

        if (rgItems.Items.Count > 0)
        {
            foreach (GridDataItem gdi in rgItems.Items)
            {
                DataRow drItem = dtItems_Global.NewRow();
                drItem["Class"] = (gdi.FindControl("lblClass") as Label).Text;
                drItem["Weight"] = (gdi.FindControl("lblWeight") as Label).Text;

                dtItems_Global.Rows.Add(drItem);
            }
        }
    switch (e.CommandName)
    {
        case "PerformInsert":
            TextBox txtItemClass = (e.Item.FindControl("txtClass") as TextBox);
            TextBox txtItemWeight = (e.Item.FindControl("txtWeight") as TextBox);

            DataRow drItem = dtItems_Global.NewRow();
            drItem["Class"] = txtItemClass.Text;
            drItem["Weight"] = txtItemWeight.Text;
            dtItems_Global.Rows.Add(drItem);

            rgItems.Rebind();
            break;
    }
}

Answer 1

您是否可以在RadGrid的列标记中包含一个空的编辑列，如下所示？那是缺失的。

<telerik:GridEditCommandColumn>
</telerik:GridEditCommandColumn>

此外，在添加上述标记后，ItemCommand的代码隐藏还应包含以下代码。

protected void rgItems_ItemCommand(object source, GridCommandEventArgs e)
    {
        if (e.CommandName == RadGrid.InitInsertCommandName) //"Add Item" button clicked
        {
            GridEditCommandColumn editColumn = (GridEditCommandColumn)rgItems.MasterTableView.GetColumn("EditCommandColumn");
            editColumn.Visible = false;
        }
        else if (e.CommandName == RadGrid.RebindGridCommandName && e.Item.OwnerTableView.IsItemInserted)
        {
            e.Canceled = true;
        }
        else
        {
            GridEditCommandColumn editColumn = (GridEditCommandColumn)rgItems.MasterTableView.GetColumn("EditCommandColumn");
            if (!editColumn.Visible)
                editColumn.Visible = true;
        }
    }

如果上述方法无法解决问题，请在ItemInserted事件中使用以下代码的简单方法。

e.KeepInInsertMode = false; 
rgItems.EditIndexes.Clear(); 
rgItems.Rebind();

Answer 2

我建议分别使用OnInsertCommand，OnUpdateCommand和OnDeleteCommand。

比为每个命令使用switch语句要清晰得多。

 func getSquadMembersCoordinates() -> Array<PFGeoPoint> {
    var coordinatesArray:[PFGeoPoint] = [PFGeoPoint]()

    if user != nil {

            let userSquad = PFUser.currentUser()?["inSquad"] as? String

            let query = PFUser.query()
            query?.whereKey("username", notEqualTo: (PFUser.currentUser()?    ["username"])!)
            query?.whereKey("inSquad", equalTo: userSquad!)
            query?.whereKey("visible", notEqualTo: false)
            query?.findObjectsInBackgroundWithBlock {
                (results: [PFObject]?, error: NSError?) -> Void in
                if error == nil {
                    if results?.count != 0 {

                        if let results = results {
                            for object in results {
                                coordinatesArray.append(object.objectForKey("location") as! PFGeoPoint)

                            }
                        }
                    } else {
                        print("No Squad Members or not visible")
                    }
                } else {
                    print ("\(error)")
                }
            }
        } else {

            dispatch_async(dispatch_get_main_queue(), { () -> Void in
                let viewController:UIViewController = UIStoryboard(name: "Main", bundle: nil).instantiateViewControllerWithIdentifier("SquadVC")
                self.presentViewController(viewController, animated: true, completion: nil)
            })
    }



    print("\(coordinatesArray.count)")
    return coordinatesArray

}

无法关闭Telerik RadGrid中的编辑表单

2 个答案: