diff --git a/插件库/Lskj.Control/GridControlEx.cs b/插件库/Lskj.Control/GridControlEx.cs
index bd26ec2..92bad48 100644
--- a/插件库/Lskj.Control/GridControlEx.cs
+++ b/插件库/Lskj.Control/GridControlEx.cs
@@ -456,7 +456,7 @@ namespace Lskj.Control
                         {
                             var subField = column.Tag as GridColumnModel;
                             if (subField == null) continue;
-                           
+
                             string dynamicFieldName = column.FieldName;
                             object updatedValue = updatedRow[dynamicFieldName];
 
@@ -6659,6 +6659,7 @@ namespace Lskj.Control
         /// <param name="originalDataSource"></param>
         private void BuildDynamicGroupedColumns(BandedGridControlEx bandedGridControlEx, DataTable originalDataSource)
         {
+            bandedGridControlEx.BandedView.BeginUpdate();
             // 数据源改变时必须重复执行此逻辑
             bandedGridControlEx.BandedView.OptionsView.ColumnAutoWidth = false;
 
@@ -6728,17 +6729,15 @@ namespace Lskj.Control
                         OptionsColumn = { FixedWidth = true } // <-- 明确设置固定宽度
                     };
 
+                    bandedGridControlEx.SetColumnFormat(subColumn, subField);
                     dynamicBand.Columns.Add(subColumn);
                     bandedGridControlEx.BandedView.Columns.Add(subColumn);
                 }
             }
-
+            bandedGridControlEx.BandedView.EndUpdate();
             // 构建最终动态数据源
             DataTable dynamicDataTable = BuildDynamicDataSource(originalDataSource, GroupPrimary, GroupFieldprimary, GroupField, normalColumns, dynamicHeaders);
             bandedGridControlEx.gridControl.DataSource = dynamicDataTable;
-
-            // 最后再强制刷新布局
-            bandedGridControlEx.BandedView.LayoutChanged();
         }
 
         /// <summary>
@@ -6764,13 +6763,20 @@ namespace Lskj.Control
 
                 // 添加主键列
                 if (!dtResult.Columns.Contains(GroupPrimary.FieldName))
-                    dtResult.Columns.Add(GroupPrimary.FieldName, typeof(string));
+                {
+                    Type dataType = originalDataSource.Columns[GroupPrimary.FieldName].DataType;
+                    dtResult.Columns.Add(GroupPrimary.FieldName, dataType);
+                }
+
 
                 // 添加普通列，仅当原数据源存在时才添加
                 foreach (var col in normalColumns)
                 {
                     if (originalDataSource.Columns.Contains(col.FieldName))
-                        dtResult.Columns.Add(col.FieldName, typeof(string));
+                    {
+                        Type dataType = originalDataSource.Columns[col.FieldName].DataType;
+                        dtResult.Columns.Add(col.FieldName, dataType);
+                    }
                 }
 
                 // 添加动态列 (改为string类型避免异常)
@@ -6780,7 +6786,10 @@ namespace Lskj.Control
                     {
                         string dynamicFieldName = $"{header}_{subField.FieldName}";
                         if (!dtResult.Columns.Contains(dynamicFieldName))
-                            dtResult.Columns.Add(dynamicFieldName, typeof(string)); // <-- 此处已修改为string
+                        {
+                            Type dataType = originalDataSource.Columns[subField.FieldName].DataType;
+                            dtResult.Columns.Add(dynamicFieldName, dataType); // <-- 此处已修改为string
+                        }
                     }
                 }