1688商品采集

TEMUKJD/UserComponent/DataGridViewEx.cs

@@ -49,7 +49,11 @@ namespace TemuKJD.UserComponent
         {
             if (e.ColumnIndex < 0)
                 return;
-            var colIndex = this.Columns.Cast<DataGridViewColumn>().FirstOrDefault(c => c is DataGridViewCheckBoxColumn).Index;
+
+            var chkCol = this.Columns.Cast<DataGridViewColumn>().FirstOrDefault(c => c is DataGridViewCheckBoxColumn);
+            if (chkCol == null)
+                return;
+            var colIndex = chkCol.Index;
             if (colIndex < 0 || e.ColumnIndex != colIndex)
                 return;