diff --git a/Windows/CS/Framework4.0/Toprie/Toprie/Setting.cs b/Windows/CS/Framework4.0/Toprie/Toprie/Setting.cs
index 2f6577b..a89a6ad 100644
--- a/Windows/CS/Framework4.0/Toprie/Toprie/Setting.cs
+++ b/Windows/CS/Framework4.0/Toprie/Toprie/Setting.cs
@@ -611,8 +611,8 @@ namespace JoyD.Windows.CS
                 {
                     dataGridViewTempDiff.BeginEdit(true);
                 }
-                // 处理颜色列双击 - 双击时打开颜色选择对话框
-                else if (e.ColumnIndex == dataGridViewTempDiff.Columns["colorColumn"].Index)
+                // 处理颜色列双击 - 双击时打开颜色选择对话框，但仅在非只读模式下
+                else if (e.ColumnIndex == dataGridViewTempDiff.Columns["colorColumn"].Index && !dataGridViewTempDiff.ReadOnly)
                 {
                     using (ColorDialog colorDialog = new ColorDialog())
                     {