udpate

dist/bundle.js

@@ -90056,7 +90056,8 @@ BI.DownListPopup = BI.inherit(BI.Pane, {
                                 type: "bi.vertical"
                             }]
 
-                        }
+                        },
+                        maxHeight: 378
                     };
                     item.el.childValues = [];
                     BI.each(item.children, function (i, child) {

dist/demo.js

@@ -12523,6 +12523,58 @@ BI.shortcut("demo.date_time", Demo.CustomDateTime);Demo.Downlist = BI.inherit(BI
                             text: "column 1.2",
                             value: 22,
                             cls: "dot-e-font"
+                        }, {
+                            text: "column 1.1",
+                            value: 21,
+                            cls: "dot-e-font"
+                        }, {
+                            text: "column 1.2",
+                            value: 22,
+                            cls: "dot-e-font"
+                        }, {
+                            text: "column 1.1",
+                            value: 21,
+                            cls: "dot-e-font"
+                        }, {
+                            text: "column 1.2",
+                            value: 22,
+                            cls: "dot-e-font"
+                        }, {
+                            text: "column 1.1",
+                            value: 21,
+                            cls: "dot-e-font"
+                        }, {
+                            text: "column 1.2",
+                            value: 22,
+                            cls: "dot-e-font"
+                        }, {
+                            text: "column 1.1",
+                            value: 21,
+                            cls: "dot-e-font"
+                        }, {
+                            text: "column 1.2",
+                            value: 22,
+                            cls: "dot-e-font"
+                        }, {
+                            text: "column 1.1",
+                            value: 21,
+                            cls: "dot-e-font"
+                        }, {
+                            text: "column 1.2",
+                            value: 22,
+                            cls: "dot-e-font"
+                        }, {
+                            text: "column 1.1",
+                            value: 21,
+                            cls: "dot-e-font"
+                        }, {
+                            text: "column 1.2",
+                            value: 22,
+                            cls: "dot-e-font"
+                        }, {
+                            text: "column 1.1",
+                            value: 21,
+                            cls: "dot-e-font"
                         }]
                     }],
                     [{

dist/fineui.js

@@ -90299,7 +90299,8 @@ BI.DownListPopup = BI.inherit(BI.Pane, {
                                 type: "bi.vertical"
                             }]
 
-                        }
+                        },
+                        maxHeight: 378
                     };
                     item.el.childValues = [];
                     BI.each(item.children, function (i, child) {

dist/widget.js

@@ -2540,7 +2540,8 @@ BI.DownListPopup = BI.inherit(BI.Pane, {
                                 type: "bi.vertical"
                             }]
 
-                        }
+                        },
+                        maxHeight: 378
                     };
                     item.el.childValues = [];
                     BI.each(item.children, function (i, child) {

src/widget/downlist/popup.downlist.js

@@ -105,7 +105,8 @@ BI.DownListPopup = BI.inherit(BI.Pane, {
                                 type: "bi.vertical"
                             }]
 
-                        }
+                        },
+                        maxHeight: 378
                     };
                     item.el.childValues = [];
                     BI.each(item.children, function (i, child) {