NodeSelectionChanged not firing. Node is not selected.

1705

Ulises posted over 16 years ago

Hey guys, I have an UltraWebTree that is not working as expected. It has 4 levels deep, and after the roor it starts with 2 leaves. One of them is never selected. After the user clicks on it, it will highlight for less than a sec, refresh the page and then highlight the previous leave, without firing the NodeSelectionChanged event.

I just don't have a clue, could somebody help me please?

HTML markup:

<ignav:UltraWebTree id="UltraWebTree1" runat="server"
    DisabledClass=""
    NodeEditClass=""
    TargetFrame=""
    TargetUrl=""
    OnNodeSelectionChanged="UltraWebTree1_NodeSelectionChanged"

    >
    <Levels>
        <ignav:Level Index="0" LevelCheckBoxes="False"></ignav:Level>
        <ignav:Level Index="1"></ignav:Level>
        <ignav:Level Index="2"></ignav:Level>
        <ignav:Level Index="3"></ignav:Level>
    </Levels>
</ignav:UltraWebTree>

This is how I populate the WebTree

protected void Page_Load(object sender, EventArgs e)
    {
      if (!IsPostBack)
      {
        PopulateTreeView();
      }
    }

    public void PopulateTreeView()
    {
      DataTable facClassTable = FacClassBLL.getList();
      DataTable catGroupTable = CatGroupBLL.getList();
      DataTable basicCatTable = BasicCatBLL.getList();
      DataTable facAnalysisCat = FacAnalysisCatBLL.getList();
      DataSet dataSet = new DataSet("CatCodes");

      facClassTable.TableName = CacheKeys.FacClassList.ToString();
      catGroupTable.TableName = CacheKeys.CatGroupList.ToString();
      basicCatTable.TableName = CacheKeys.BasicCatList.ToString();
      facAnalysisCat.TableName = CacheKeys.FacAnalysisCatList.ToString();

      dataSet.Tables.Add(facClassTable);
      dataSet.Tables.Add(catGroupTable);
      dataSet.Tables.Add(basicCatTable);
      dataSet.Tables.Add(facAnalysisCat);

      dataSet.Relations.Add("FacClass_CatGroup",
          dataSet.Tables[CacheKeys.FacClassList.ToString()].Columns["FacClassSeq"],
          dataSet.Tables[CacheKeys.CatGroupList.ToString()].Columns["FacClassSeq"]);

      dataSet.Relations.Add("CatGroup_BasicCat",
          dataSet.Tables[CacheKeys.CatGroupList.ToString()].Columns["CatGroupSeq"],
          dataSet.Tables[CacheKeys.BasicCatList.ToString()].Columns["CatGroupSeq"]);

      dataSet.Relations.Add("BasicCat_FacAnalysisCat",
          dataSet.Tables[CacheKeys.BasicCatList.ToString()].Columns["BasicCatSeq"],
          dataSet.Tables[CacheKeys.FacAnalysisCatList.ToString()].Columns["BasicCatSeq"]);

      UltraWebTree1.DataSource = dataSet;

      UltraWebTree1.Levels[0].LevelKeyField = "FacClassSeq";
      UltraWebTree1.Levels[1].LevelKeyField = "CatGroupSeq";
      UltraWebTree1.Levels[2].LevelKeyField = "BasicCatSeq";
      UltraWebTree1.Levels[3].LevelKeyField = "FacAnalysisCatSeq";

      UltraWebTree1.Levels[0].RelationName = "FacClass_CatGroup";
      UltraWebTree1.Levels[1].RelationName = "CatGroup_BasicCat";
      UltraWebTree1.Levels[2].RelationName = "BasicCat_FacAnalysisCat";

      UltraWebTree1.Levels[0].ColumnName = "FacClassTitle";
      UltraWebTree1.Levels[1].ColumnName = "CatGroupTitle";
      UltraWebTree1.Levels[2].ColumnName = "BasicCatTitle";
      UltraWebTree1.Levels[3].ColumnName = "FacAnalysisCatTitle";

      UltraWebTree1.DataMember = CacheKeys.FacClassList.ToString();

      UltraWebTree1.DataBind();
    }

Any help would be greatly appreciated, thanks in advance !!!!

Ulises

435

Eric posted over 15 years ago in reply to Ian Walker

I've found through experimentation that the order of the code will affect whether the event wireup occurs. When I specify the ClientSideEvents property at the end of the C# (i.e. server-side) code, the JavaScript (i.e. client-side) code works properly. When I specify the ClientSideEvents near the constructor in the C# code, the JavaScript does not fire.
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348

Mukesh posted over 15 years ago

Hi,

Thanks for the reply. I did like that,when a node is added,it doesn't scrolls up but when I double click on node to edit text,then it automatically scrolls to node which I selected before adding new node and when I scroll down,it shows the node in Editing mode.I need when i double click on node for editing,it should not be scrolls to any other node. I appreciate your time you spent on me. have you seen the mobrown1 reply. when I try to use his example, I m unable to find ScrollPosition.Value.Please reply.

Thanks & Regards,

Mukesh
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30

Michael posted over 16 years ago in reply to Paulo

I was investigating a differnet issue and came across a slightly better fix for the issue of scrollTop not being set properly.

This was my resolve...

In the ComponentsTreeView_BeforeNodeSelectionChange function on the client I had alreadt added the following
var ele = document.getElementById('ctl00$ScrollPosition'); // Hidden field the has runat="server" var tree = document.getElementById('T_ctl00ComponentsTreeView');
ele.value = tree.scrollTop;

Now in the class file in the Page_Load I added the following
protected void Page_Load(object sender, EventArgs e)
{
if (currentUser == null) Response.Redirect("RedirectToLogin.aspx");
// if the page is being loaded for the first time
if (!Page.IsPostBack)
{

// SOME CODE
}
else

{

// This sets the controls Scroll position and is actually sent to the client. This resolved my bug and I took out the window.setTimeout I was using before
ComponentsTreeView.ScrollTopPos = Int32.Parse(ScrollPosition.Value);
}

}

If you have questions let me know
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55

Paulo posted over 16 years ago in reply to Ulises

same here too, thks for sharing!

Paulo Pereira, Portugal
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1705

Ulises posted over 16 years ago in reply to Ian Walker

imwalker said:
hooking the following code into the client side event AfterNodeSelectionChange fixed the problem for me:

function UltraWebTree_AfterNodeSelectionChange(treeId, nodeId){
var selectedNode = igtree_getNodeById(nodeId);
selectedNode.setText(selectedNode.getText());

}

This fixed my problem too !!
Thanks for sharing !!!!
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