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[CLOSED] Read all checked nodes in treepanel by code_behind

  1. #1
    Nov 22, 2014, 12:40 PM

    [CLOSED] Read all checked nodes in treepanel by code_behind

    Hello


    How could I read all the checkbox clicked in the treeview example
    https://examples2.ext.net/#/TreePane...nced/TreeGrid/


    Already tried various methods and failed.

    Tks

    Ulisses
    Last edited by Daniil; Dec 11, 2014 at 8:41 AM. Reason: [CLOSED]
  2. #2
    Nov 24, 2014, 3:54 PM
    Hi @ucaneto,

    Probably, you mean the checkboxes in a CheckColumn. If so, this information is not sent to server automatically. You should send it manually via a request's parameters, i.e. a DirectEvent's ExtraParams or a DirectMethod's parameters.

    If you use a Node's Checked as here
    https://examples2.ext.net/#/TreePane...heckbox_Nodes/

    Then the checked nodes are automatically submitted to the server and you are able to access it via:
    this.TreePanel1.CheckedNodes
  3. #3
    Nov 24, 2014, 11:29 PM
    Hi

    I put the code below
                                      <DirectEvents>
                                         <CheckChange OnEvent = "checkChange">
                                             <ExtraParams>
                                                 <ext: Parameter Name = "checked" Value = "checked" Mode = "Raw" />
                                             </ ExtraParams>
                                         </ CheckChange>
                                     </ DirectEvents>
    and can return if clicked or not, what I need is to know the complete treepanel line below is a picture that shows what I need.


    As the precise image that returns the data (cidade,true);
    or the need to get the text node, plus the check value.

    I'm sorry if I can not express well what I need, is that my English is basic.

    Tks

    Ulisses
    Attached Thumbnails Click image for larger version.  Name: ima1.fw.jpg  Views: 32  Size: 38.9 KB  ID: 16581  
    Last edited by ucaneto; Nov 24, 2014 at 11:53 PM.
  4. #4
    Nov 25, 2014, 2:33 PM
    This example should help.

    Example
    <%@ Page Language="C#" %>

<script runat="server">
    protected void CheckColumn_CheckChange(object sender, DirectEventArgs e)
    {
        SubmittedNode node = JSON.Deserialize<SubmittedNode>(e.ExtraParams["node"], new Newtonsoft.Json.Serialization.CamelCasePropertyNamesContractResolver());
        X.Msg.Alert("CheckColumn_CheckChange", node.Text + " " + node.Attributes["actual"]).Show();
    }
</script>

<!DOCTYPE html>
<html>
<head runat="server">
    <title>Ext.NET v2 Example</title>
</head>
<body>
    <form runat="server">
        <ext:ResourceManager runat="server" />

        <ext:TreePanel runat="server" Width="300">
            <Fields>
                <ext:ModelField Name="actual" />
            </Fields>
            <ColumnModel>
                <Columns>
                    <ext:TreeColumn runat="server" Text="Text" DataIndex="text" Flex="1" />
                    <ext:CheckColumn runat="server" Text="Actual" DataIndex="actual" Editable="true">
                        <DirectEvents>
                            <CheckChange OnEvent="CheckColumn_CheckChange">
                                <ExtraParams>
                                    <ext:Parameter Name="node" Value="this.grid.convertToSubmitNode(record)" Mode="Raw" />
                                </ExtraParams>
                            </CheckChange>
                        </DirectEvents>
                    </ext:CheckColumn>
                </Columns>
            </ColumnModel>
            <Root>
                <ext:Node Text="Root (level 0)" Expanded="true">
                    <Children>
                        <ext:Node Text="Node1 (level 1)" Expanded="true">
                            <Children>
                                <ext:Node Text="Node1 (level 2)" Expanded="true">
                                    <Children>
                                        <ext:Node Text="Node1 (level 3)" Leaf="true" />
                                        <ext:Node Text="Node2 (level 3)" Leaf="true" />
                                    </Children>
                                </ext:Node>
                            </Children>
                        </ext:Node>
                        <ext:Node Text="Node2 (level 1)" Expanded="true">
                            <Children>
                                <ext:Node Text="Node1 (level 2)" Expanded="true">
                                    <Children>
                                        <ext:Node Text="Node1 (level 3)" Leaf="true" />
                                        <ext:Node Text="Node2 (level 3)" Leaf="true" />
                                    </Children>
                                </ext:Node>
                            </Children>
                        </ext:Node>
                    </Children>
                </ext:Node>
            </Root>
        </ext:TreePanel>
    </form>
</body>
</html>
  5. #5
    Dec 01, 2014, 7:30 PM
    Hi Daniil


    Actually what I want is to click on a button and go all the nodes of treepanel and check which were clicked.


    How can I do this?


    I have tried many ways, the way you went I caught the second you click actually the User can click on each and when you click for example on a save button it will read all the nodes and check which were clicked.


    grateful

    Ulisses
  6. #6
    Dec 02, 2014, 9:32 PM
    It looks you just need to submit all the nodes in one click.

    Please take a look at this example, the "Simple Submit" button and the SubmitNodes method.
    https://examples2.ext.net/#/TreePanel/Basic/Submit

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