Enhance export demo

Hcs.WebApp/Components/Pages/Test/Export.razor

@@ -29,10 +29,10 @@
         <RadzenTabs RenderMode="TabRenderMode.Client" Style="height: 100%;">
             <Tabs>
                 <RadzenTabsItem Text="Запрос">
-                    <RadzenTextArea @bind-Value=@messageBody Disabled="true" />
+                    <RadzenTextArea @ref=@messageTextArea Value=@messageBody Disabled="true" ReadOnly="true" Style="resize: none; white-space: pre; overflow-wrap: normal; overflow-x: auto;" class="rz-w-stretch" />
                 </RadzenTabsItem>
                 <RadzenTabsItem Text="Результат">
-                    <RadzenTextArea @bind-Value=@responseBody Disabled="true" />
+                    <RadzenTextArea @ref=@responseTextArea Value=@responseBody Disabled="true" ReadOnly="true" Style="resize: none; white-space: pre; overflow-wrap: normal; overflow-x: auto;" class="rz-w-stretch" />
                 </RadzenTabsItem>
             </Tabs>
         </RadzenTabs>
@@ -45,6 +45,8 @@
 @code {
     EventConsole console = default!;
     bool inputDisabled = false;
+    RadzenTextArea messageTextArea;
+    RadzenTextArea responseTextArea;
     string messageBody;
     string responseBody;
 
@@ -85,7 +87,8 @@
         {
             catchMessageBody = false;
 
-            messageBody = File.ReadAllText(fileName);
+            messageBody = XmlBeautifier.Beautify(File.ReadAllText(fileName));
+            messageTextArea.Rows = messageBody.Count(c => c.Equals('\n')) + 2;
         }
     }
 
@@ -118,6 +121,7 @@
     void EndExport()
     {
         inputDisabled = false;
-        responseBody = File.ReadAllText(messageCapturer.LastFileName);
+        responseBody = XmlBeautifier.Beautify(File.ReadAllText(messageCapturer.LastFileName));
+        responseTextArea.Rows = responseBody.Count(c => c.Equals('\n')) + 2;
     }
 }

Hcs.WebApp/XmlBeautifier.cs

@@ -0,0 +1,29 @@
+using System.Text;
+using System.Xml;
+using System.Xml.Linq;
+
+namespace Hcs.WebApp
+{
+    internal static class XmlBeautifier
+    {
+        internal static string Beautify(string xml)
+        {
+            var stringBuilder = new StringBuilder();
+
+            var settings = new XmlWriterSettings
+            {
+                OmitXmlDeclaration = true,
+                Indent = true,
+                NewLineOnAttributes = true
+            };
+
+            using (var xmlWriter = XmlWriter.Create(stringBuilder, settings))
+            {
+                var element = XElement.Parse(xml);
+                element.Save(xmlWriter);
+            }
+
+            return stringBuilder.ToString();
+        }
+    }
+}