Question

您好我正在尝试将子节点附加到父节点，具体取决于它们的字符串是否匹配。

我遇到了一些问题，因为我不确定如何通过它的名字来识别父母。例如，如果“string a”==“string a”，那么我想将子节点LoanName添加到字符串与父名称匹配的父id。

如果我这样做，这是有效的：

tvTodoList.Nodes[0].Nodes.Add(activityResult.ActivityName);

但显然这会将子节点附加到树视图中的第一个父节点。如何使其与变量loanresult.LoanName？

的名称相匹配

以下是我的FillTodoList方法的代码

private void FillTodoList()
{
    var nol = NetworkOpsLayer.NetworkOpsLayer.CreateForDirectMongoConnection("mongodb://localhost", "test", "loans");
    //demoSave(nol);

    var loanList = nol.GetDocsWhichMatchGivenDocString("{ \"isActive\" : 1 }");

    foreach (string s in loanList)
    {
        //System.Console.WriteLine(s);
        var loanResult = JsonConvert.DeserializeObject<RootObject>(s);

        tvTodoList.Nodes.Add("Loan Name: " + loanResult.LoanName);

        //Add children to each Loan

        var con = NetworkOpsLayer.NetworkOpsLayer.CreateForDirectMongoConnection("mongodb://localhost", "test", "activity");
        //demoSave(con);
        var activityList = con.GetDocsWhichMatchGivenDocString("{ \"isActive\" : 1 }");

        foreach (string st in activityList)
        {
            var activityResult = JsonConvert.DeserializeObject<Activity>(st);
            if (loanResult.LoanName == activityResult.ParentLoanName)
            {
                tvTodoList.Nodes[loanResult.LoanName].Nodes.Add(activityResult.ActivityName);
            }
        }
    }
}

Answer 1

方法TreeNodeCollection.Find（string，boolean）将有助于此...

foreach (string st in activityList)
{
    var activityResult = JsonConvert.DeserializeObject<Activity>(st);
    if (loanResult.LoanName == activityResult.ParentLoanName)
    {
        TreeNode[] matches = tvTodoList.Nodes.Find("Loan Name: " + loanResult.LoanName, false);
        if (matches.Length > 0) matches[0].Nodes.Add(activityResult.ActivityName);
    }
}

将对象分配给c＃中的treeview子节点以标识父节点

1 个答案: