字符串转换为器WebControls - asp.net [英] Convert string to WebControls - asp.net

问题描述

如果你看到下面的code

If you see the following code

Table tblTest = (Table)tblControl;
StringBuilder text = new StringBuilder();
StringWriter writer = new StringWriter(text);
HtmlTextWriter htmlWriter = new HtmlTextWriter(writer);
tblTest.RenderControl(htmlWriter);
htmlCode = text.ToString();

在这里我表对象转换为字符串。

here i am converting a table object to string.

我会得到的输出为＆LT;表＆gt;＆LT; TR＆GT;＆LT; TD＆GT;项目＆lt; / TD＆GT;＆LT; / TR＆GT;＆LT; /表＆gt;

现在我想回滚它。我有一个字符串，我需要将其转换成WebControls.Table对象。请人提出了一些办法。

Now i want to Rollback it. I am having a string and i need to convert that into WebControls.Table object. Please someone suggest some way.

推荐答案

在地图上添加一个HTMLLoader对象呈现与在控制了名的。然后，你可以把发送给你的XML字符串，并使用 XDocument.Parse 加载它。从那里，你可以递归构建控制结构。

Create a map of the name an HtmlControl is rendered with to the control. Then you can take the xml string sent to you and load it using XDocument.Parse. From there you can recursively build the control structure.

Dictionary<string, HtmlContainerControl> controlConstructor = new Dictionary<string, HtmlContainerControl>
                                                        {
                                                            {"table", new HtmlTable()},
                                                            {"tr", new HtmlTableRow()},
                                                            {"td", new HtmlTableCell()}
                                                        };
string xml = "<table><tr><td>item</td></tr></table>";
var htmlDoc = XElement.Parse(xml);
Func<XElement, HtmlControl> constructHtmlStructure = null;
constructHtmlStructure = e =>
                            {
                                var control = controlConstructor[e.Name.ToString()];
                                if (e.HasElements)
                                    control.Controls.Add(constructHtmlStructure(e.Elements().Single()));
                                else
                                    control.InnerText = e.Value;
                                return control;
                            };

var structure = constructHtmlStructure(htmlDoc);

是一个非常简单的开始。你需要的东西复杂得多得到所有的控件。需要注意的是他们有，您可以使用捕捉到所有控件构建你的字典标记名属性。

Is a very simple start. You'll need something much more complicated to get all controls. Note that they have a TagName property which you can use to capture all controls in building your dictionary.

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