C# c中的awesomium和javascript最奇怪的问题#

我在C#中使用Awesomium，并将变量从javascript中拖出

正在运行的代码：

           if (GotCategories == false) {
            if (WebBrowser.ExecuteJavascriptWithResult("finished").ToString() == "true" && WebBrowser.IsDocumentReady == true) {
                int Level1Len = Convert.ToInt32(WebBrowser.ExecuteJavascriptWithResult("all_categories.length").ToString());
                for (int i = 0; i < Level1Len - 1; i++) {
                    string Level1 = WebBrowser.ExecuteJavascriptWithResult("all_categories[" + i + "].title");
                    string Level1ID = WebBrowser.ExecuteJavascriptWithResult("all_categories[" + i + "].id");
                    TreeNode treenode = new TreeNode(Level1);
                    CatsTree.Nodes.Add(treenode);
                    int Level2Len = Convert.ToInt32(WebBrowser.ExecuteJavascriptWithResult("all_categories[" + i + "].sub.length").ToString());
                    for (int j = 0; j < Level2Len; j++) {
                        string Level2 = WebBrowser.ExecuteJavascriptWithResult("all_categories[" + i + "].sub[" + j + "].title");
                        string Level2ID = WebBrowser.ExecuteJavascriptWithResult("all_categories[" + i + "].sub[" + j + "].id");
                        treenode = new TreeNode(Level2);
                        CatsTree.Nodes[i].Nodes.Add(treenode);
                        int Level3Len = Convert.ToInt32(WebBrowser.ExecuteJavascriptWithResult("all_categories[" + i + "].sub[" + j + "].sub.length").ToString());
                        for (int k = 0; k < Level3Len; k++) {
                            string Level3 = WebBrowser.ExecuteJavascriptWithResult("all_categories[" + i + "].sub[" + j + "].sub[" + k + "].title");
                            string Level3ID = WebBrowser.ExecuteJavascriptWithResult("all_categories[" + i + "].sub[" + j + "].sub[" + k + "].id");
                            treenode = new TreeNode(Level3);
                            CatsTree.Nodes[i].Nodes[j].Nodes.Add(treenode);
                            if (WebBrowser.ExecuteJavascriptWithResult("all_categories[" + i + "].sub[" + j + "].sub[" + k + "].sub.length").IsInteger == true) {
                                string Level4Len = Convert.ToInt32(WebBrowser.ExecuteJavascriptWithResult("all_categories[" + i + "].sub[" + j + "].sub[" + k + "].sub.length").ToString());

if（GotCategories==false）{
if（WebBrowser.ExecuteJavascriptWithResult（“finished”）.ToString（）=“true”&&WebBrowser.IsDocumentReady==true）{
int Level1Len=Convert.ToInt32（WebBrowser.ExecuteJavascriptWithResult（“all_categories.length”）.ToString（）；
对于（int i=0；i

然而，一个奇怪的问题发生了

如果我现在运行它，Level4Len会抛出一个异常错误

输入字符串的格式不正确

尽管..如果我放置一个

MessageBox.Show（Level4Len）；

我没有收到错误，..以及显示的输出完全正常

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我见过的最奇怪的事情..

取决于时间，0或2@GrantWinney我的确切想法是，我会试一试，看看结果如何，谢谢！：）