dynamicFormTagHelper add Column attribute

framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Form/AbpDynamicformTagHelper.cs

@@ -12,6 +12,9 @@ public class AbpDynamicFormTagHelper : AbpTagHelper<AbpDynamicFormTagHelper, Abp
     [HtmlAttributeName("abp-model")]
     public ModelExpression Model { get; set; }
 
+    [HtmlAttributeName("abp-column")]
+    public int Column { get; set; }
+
     public bool? SubmitButton { get; set; }
 
     public bool? RequiredSymbols { get; set; } = true;

framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Form/AbpDynamicformTagHelperService.cs

@@ -97,11 +97,15 @@ public class AbpDynamicFormTagHelperService : AbpTagHelperService<AbpDynamicForm
     {
         var contentBuilder = new StringBuilder("");
 
+        contentBuilder.AppendLine("<div class=\"row\">");
+
         foreach (var item in items.OrderBy(o => o.Order))
         {
-            contentBuilder.AppendLine(item.HtmlContent);
+            contentBuilder.AppendLine(SetColumn(item.HtmlContent));
         }
 
+        contentBuilder.AppendLine("</div>");
+
         var content = childContent.GetContent();
         if (content.Contains(AbpFormContentPlaceHolder))
         {
@@ -115,6 +119,18 @@ public class AbpDynamicFormTagHelperService : AbpTagHelperService<AbpDynamicForm
         output.Content.SetHtmlContent(content);
     }
 
+    protected virtual string SetColumn(string htmlContent)
+    {
+        if (TagHelper.Column < 2 || TagHelper.Column > 6)
+        {
+            return htmlContent;
+        }
+
+        var col_class = $"col-12 col-sm-" + (12 / TagHelper.Column);
+
+        return $"<div class=\"{col_class}\">{htmlContent}</div>";
+    }
+
     protected virtual async Task SetSubmitButton(TagHelperContext context, TagHelperOutput output)
     {
         if (!TagHelper.SubmitButton ?? true)