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[CLOSED] Problems with TreePanel ClearChecked

  1. #1
    Jan 08, 2014, 1:14 PM

    [CLOSED] Problems with TreePanel ClearChecked

    Last edited by Daniil; Jan 13, 2014 at 10:56 AM. Reason: [CLOSED]
  2. #2
    Jan 08, 2014, 2:54 PM
    Hi @MarcA,

    You can do it this way:
    treePanel.GetNodeById("R0").SetChecked(true);
treePanel.GetNodeById("R1").SetChecked(true);
  3. #3
    Jan 08, 2014, 3:12 PM
    Thank you for your quick response.

    1). When I clear the checkbox treePanel.ClearChecked(), all my nodes get checkboxes also if they did not have a checkbox.
    how can i clear all the nodes that have a checkbox at once?
    2). How do I remove the Icons?
    3). I have set 
     RowLines = false
    on the TreePanel but i still see lines.
    How do I remove them?

    using treePanel.GetNodeById works, is there a way I can check if the node exists before setting?


    Marc


    Quote Originally Posted by Daniil View Post
    Hi @MarcA,

    You can do it this way:
    treePanel.GetNodeById("R0").SetChecked(true);
treePanel.GetNodeById("R1").SetChecked(true);
  4. #4
    Jan 09, 2014, 5:08 AM
    Quote Originally Posted by MarcA View Post
    1). When I clear the checkbox treePanel.ClearChecked(), all my nodes get checkboxes also if they did not have a checkbox.
    how can i clear all the nodes that have a checkbox at once?
    I see. Please try this override:
    Ext.tree.Panel.override({
    toggleChecked : function (startNode, value) {
        startNode = startNode || this.getRootNode();       
 
        var f = function (node) {
            var oldValue = node.get("checked");
                    
            if (oldValue !== null && oldValue !== value) {
                node.set('checked', value);
                this.fireEvent('checkchange', node, value);
            }
        };
        
        var originFn = this.updateCheckSelection;
        this.updateCheckSelection = Ext.emptyFn;

        startNode.cascadeBy(f, this);

        this.updateCheckSelection = originFn;
        this.updateCheckSelection();
    }
});


    Quote Originally Posted by MarcA View Post
    2). How do I remove the Icons?
    I am not 100% sure what you mean. Please clarify.

    Quote Originally Posted by MarcA View Post
    3). I have set 
     RowLines = false
    on the TreePanel but i still see lines.
    How do I remove them?
    Please start a new forum thread.

    Quote Originally Posted by MarcA View Post
    using treePanel.GetNodeById works, is there a way I can check if the node exists before setting?
    Please start a new forum thread.
  5. #5
    Jan 09, 2014, 11:17 AM
    Quote Originally Posted by Daniil View Post
    I see. Please try this override:
    Ext.tree.Panel.override({
    toggleChecked : function (startNode, value) {
        startNode = startNode || this.getRootNode();       
 
        var f = function (node) {
            var oldValue = node.get("checked");
                    
            if (oldValue !== null && oldValue !== value) {
                node.set('checked', value);
                this.fireEvent('checkchange', node, value);
            }
        };
        
        var originFn = this.updateCheckSelection;
        this.updateCheckSelection = Ext.emptyFn;

        startNode.cascadeBy(f, this);

        this.updateCheckSelection = originFn;
        this.updateCheckSelection();
    }
});
    Finally, we considered it as a bug and fixed in the SVN trunk, revision #5599.

    Also we added the SetAllChecked method for TreePanel. It is an opposite of ClearChecked.

    So, with that last SVN revision this example is going to work.

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

<%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %>

<script runat="server">
    protected void ClearChecked(object sender, DirectEventArgs e)
    {
        this.TreePanel1.ClearChecked();
    }

    protected void SetAllChecked(object sender, DirectEventArgs e)
    {
        this.TreePanel1.SetAllChecked();
    }
</script>

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

        <ext:TreePanel ID="TreePanel1" runat="server">
            <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" Checked="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" Checked="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>

        <ext:Button runat="server" Text="Clear checked" OnDirectClick="ClearChecked" />

        <ext:Button runat="server" Text="SetAllChecked" OnDirectClick="SetAllChecked" />
    </form>
</body>
</html>
  6. #6
    Jan 13, 2014, 9:13 AM
    Thank you,

    Using the overide works.

    Marc

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