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[CLOSED] confirm message in codebehind?

  1. #1
    Sep 23, 2013, 2:16 PM

    [CLOSED] confirm message in codebehind?

    i code batch update in codebehind, when delete a record, I want to show a confirm message "are you sure to delete it?",
    how to do it in codebehind?
     protected void BatchUpdate(object sender, DirectEventArgs e)
        {
            ChangeRecords<model.crm.hdsoso.com.column> persons = new StoreDataHandler(e.ExtraParams["data"]).BatchObjectData<model.crm.hdsoso.com.column>();

             
            foreach (model.crm.hdsoso.com.column deleted in persons.Deleted)
            {
                try
                {  
                    //here I want to show message,such as
                    // X.Msg.Confirm("alert","are you sure to delete?", callback fun) ?? 
                    _columnService.Delete(deleted);
                }
                catch (Exception)
                {
                    X.Msg.Alert("消息", "删除失败").Show();
                }
            }

            foreach (model.crm.hdsoso.com.column updated in persons.Updated)
            {
                try
                {
                    _columnService.Update(updated);
                }
                catch (Exception)
                {
                    X.Msg.Alert("消息", "更新失败").Show();
                }

            }
    Last edited by Daniil; Oct 04, 2013 at 5:56 AM. Reason: [CLOSED]
  2. #2
    Sep 23, 2013, 2:45 PM
    Hi @hdsoso,

    X.Msg.Confirm()
    generates JavaScript code which gets executed when a browser gets a DirectEvent's response. "A browser gets a response" means that a DirectEvent's code behind handler execution is finished. There is no way to suspend a DirectEvent's code behind handler waiting for a user confirmation.

    The best option in your case would be requesting a confirmation on client side before saving.
  3. #3
    Sep 27, 2013, 3:38 AM
    Quote Originally Posted by Daniil View Post
    Hi @hdsoso,

    X.Msg.Confirm()
    generates JavaScript code which gets executed when a browser gets a DirectEvent's response. "A browser gets a response" means that a DirectEvent's code behind handler execution is finished. There is no way to suspend a DirectEvent's code behind handler waiting for a user confirmation.

    The best option in your case would be requesting a confirmation on client side before saving.
    because batchupdate method contains add,del,update , but i want to confirm only on del method.
    now , i wrote a test case which i use extjs method, but how to convert json data to object.
    json data is 
    [{"raw":{"id":5,"name":"s5"},"modified":{},"data":{"id":5,"name":"s5"},"hasListeners":{},"events":{},"directListeners":{},"hasDirectListeners":{},"stores":[],"internalId":5,"id":"ext-gen1025-5","phantom":false,"index":4,"store":null,"removedFrom":4}]
    how to convert "data" to object.
    my test case is 
    <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm17.aspx.cs" Inherits="TobrosCWT.test.WebForm17" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title></title>
    <script runat="server">
        public class Student
        {
            public int id { get; set; }
            public string name { get; set; }
        }

        protected void Page_Load(object sender, EventArgs e)
        {
            if (!X.IsAjaxRequest)
            {
                store1.DataSource = new List<Student>()
                {
                    new Student{id = 1,name = "s1"},
                    new Student{id = 2,name = "s2"},
                    new Student{id = 3,name = "s3"},
                    new Student{id = 4,name = "s4"},
                    new Student{id = 5,name = "s5"}
                };
                store1.DataBind();
            }
        }

        [DirectMethod]
        public void BatchDel(string del)
        {
            X.Msg.Alert("消息", "已删除").Show();
        }
        public void BatchUpd(string upd)
        {
            X.Msg.Alert("消息", "已更新").Show();
        }
    
    </script>
    <script type="text/javascript">
        var batchUpdate = function () {
            var del = App.store1.getRemovedRecords();
            if (del.length != 0) {
                Ext.MessageBox.confirm("消息","确实要删吗？", function (btn) {
                    if (btn == 'yes') {
                        App.direct.BatchDel(del);
                    }
                });
            }
            var upd = App.store1.getModifiedRecords();

        }
    </script>
</head>
<body>
    <form id="form1" runat="server">
        <ext:ResourceManager runat="server" SourceFormatting="True"></ext:ResourceManager>
        <ext:GridPanel runat="server" ID="GridPanel1">
            <TopBar>
                <ext:Toolbar runat="server">
                    <Items>
                        <ext:Button runat="server" Text="批量更新" Icon="Disk">
                            <Listeners>
                                <Click Fn="batchUpdate"></Click>
                            </Listeners>
                        </ext:Button>
                        <ext:Button runat="server" Text="删除" Icon="Delete">
                            <Listeners>
                                <Click Handler="var selection = #{GridPanel1}.getView().getSelectionModel().getSelection()[0];
                                                if (selection) {
                                                    #{GridPanel1}.store.remove(selection); 
                                                }">
                                </Click>
                            </Listeners>
                        </ext:Button>
                    </Items>

                </ext:Toolbar>
            </TopBar>
            <Store>
                <ext:Store runat="server" ID="store1">
                    <Model>
                        <ext:Model runat="server">
                            <Fields>
                                <ext:ModelField Name="id"></ext:ModelField>
                                <ext:ModelField Name="name"></ext:ModelField>
                            </Fields>
                        </ext:Model>
                    </Model>
                </ext:Store>
            </Store>
            <ColumnModel>
                <Columns>
                    <ext:Column runat="server" DataIndex="id" Text="编号"></ext:Column>
                    <ext:Column runat="server" DataIndex="name" Text="名称">
                        <Editor>
                            <ext:TextField runat="server"></ext:TextField>
                        </Editor>
                    </ext:Column>
                </Columns>
            </ColumnModel>
            <Plugins>
                <ext:CellEditing runat="server"></ext:CellEditing>

            </Plugins>
            <SelectionModel>
                <ext:RowSelectionModel runat="server" Mode="Multi" ID="RowSelectionModel1"></ext:RowSelectionModel>
            </SelectionModel>
        </ext:GridPanel>
    </form>
</body>
</html>
    Attached Thumbnails Click image for larger version.  Name: QQ截图20130927113324.jpg  Views: 8  Size: 83.1 KB  ID: 6950  
  4. #4
    Sep 27, 2013, 12:00 PM
    You can still use batch saving, but you should confirm all deletions before a save request.

    In your example you can do the following:
    var batchUpdate = function () {
    var del = App.store1.getChangedData().Deleted;

    if (del.length != 0) {
        Ext.MessageBox.confirm("消息","确实要删吗？", function (btn) {
            if (btn == 'yes') {
                App.direct.BatchDel(del);
            }
        });
    }
};
    [DirectMethod]
public void BatchDel(string del)
{
    List<Student> removedStudents = JSON.Deserialize<List<Student>>(del);
    X.Msg.Alert("消息", removedStudents.Count).Show();
}

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