下拉多选框你了解易速达(易速达快递)
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本文目录:
一、excel在一个单元格中实现下拉选项的子选项,并且还可以多选,怎么实现啊?
可以采用二级下拉框(不能多选)实现。比如一级可选省份,二级可以按照一级的省份,选其下属的市县。具体方法:先定义名称“省份”及其内容,再定义以各省份名为名称及其内容(下属市县)。然后用数据有效性指定规则。二级数据有效性的数据来源填(假设一级下拉框在B列):=INDIRECT(B1)
二、Extjs怎么实现下拉框多选
1、扩展js类库,在项目中建立一个 js文件,命名为:xxx.js 其代码为
if ('function' !== typeof RegExp.escape){
RegExp.escape = function (s)
{
if ('string' !== typeof s)
{
return s;
}
return s.replace(/([.*+?^=!:${}()|[]/\])/g, '\$1');
};
}
Ext.ns('Ext.form');
Ext.form.MultiSelect = Ext.extend(Ext.form.ComboBox,
{
checkField: 'checked',
multi: true,
separator: ',',
initComponent: function ()
{
if (!this.tpl)
{
this.tpl = '<tpl for=".">' + '<div class="x-combo-list-item">'
+ '<img src="' + Ext.BLANK_IMAGE_URL + '" '
+ 'class="ux-MultiSelect-icon ux-MultiSelect-icon-'
+ '{[values.' + this.checkField + '?"checked":"unchecked"'
+ ']}">'
+ '{[values.' + this.displayField + ']}'
+ '</div>'
+ '</tpl>';
}
Ext.form.MultiSelect.superclass.initComponent.apply(this, arguments);
this.on(
{
scope: this,
beforequery: this.onBeforeQuery,
blur: this.onRealBlur
});
this.onLoad = this.onLoad.createSequence(function ()
{
if (this.el)
{
var v = this.el.dom.value;
this.el.dom.value = '';
this.el.dom.value = v;
}
});
},
initEvents: function ()
{
Ext.form.MultiSelect.superclass.initEvents.apply(this, arguments);
this.keyNav.tab = false;
},
beforeBlur: function ()
{
},
postBlur: function ()
{
},
clearValue: function ()
{
this.value = '';
this.setRawValue(this.value);
this.store.clearFilter();
this.store.each(function (r)
{
r.set(this.checkField, false);
}, this);
if (this.hiddenField)
{
this.hiddenField.value = '';
}
this.applyEmptyText();
},
getCheckedDisplay: function ()
{
var re = new RegExp(this.separator, "g");
return this.getCheckedValue(this.displayField).replace(re, this.separator + ' ');
},
getCheckedValue: function (field)
{
field = field || this.valueField;
var c = [];
var snapshot = this.store.snapshot || this.store.data;
snapshot.each(function (r)
{
if (r.get(this.checkField))
{
c.push(r.get(field));
}
}, this);
return c.join(this.separator);
},
onBeforeQuery: function (qe)
{
qe.query = qe.query.replace(new RegExp(RegExp.escape(this.getCheckedDisplay()) + '[ ' + this.separator + ']*'), '');
},
onRealBlur: function ()
{
this.list.hide();
var rv = this.getRawValue();
var rva = rv.split(new RegExp(RegExp.escape(this.separator) + ' *'));
var va = [];
var snapshot = this.store.snapshot || this.store.data;
Ext.each(rva, function (v)
{
snapshot.each(function (r)
{
if (v === r.get(this.displayField))
{
va.push(r.get(this.valueField));
}
}, this);
}, this);
this.setValue(va.join(this.separator));
this.store.clearFilter();
},
onSelect: function (record, index)
{
if (this.fireEvent('beforeselect', this, record, index) !== false)
{
record.set(this.checkField, !record.get(this.checkField));
if (this.store.isFiltered())
{
this.doQuery(this.allQuery);
}
if (this.multi)
{
if (record.get("key") == "---" && record.get(this.checkField))
{
this.setValue("---");
}
else
{
this.setValue(this.getCheckedValue());
}
}
else
{
this.clearValue();
this.value = record.get(this.valueField);
this.setRawValue(record.get(this.displayField));
this.list.hide();
}
this.fireEvent('select', this, record, index);
}
},
setValue: function (v)
{
if (v)
{
v = '' + v;
if (this.valueField)
{
this.store.clearFilter();
this.store.each(function (r)
{
var checked = !(!v.match('(^|' + this.separator + ')'
+ RegExp.escape(r.get(this.valueField))
+ '(' + this.separator + '|$)'));
r.set(this.checkField, checked);
}, this);
this.value = this.getCheckedValue();
this.setRawValue(this.getCheckedDisplay());
if (this.hiddenField)
{
this.hiddenField.value = this.value;
}
}
else
{
this.value = v;
this.setRawValue(v);
if (this.hiddenField)
{
this.hiddenField.value = v;
}
}
if (this.el)
{
this.el.removeClass(this.emptyClass);
}
}
else
{
this.clearValue();
}
},
selectAll: function ()
{
this.store.each(function (record)
{
record.set(this.checkField, true);
}, this);
this.doQuery(this.allQuery);
this.setValue(this.getCheckedValue());
},
deselectAll: function ()
{
this.clearValue();
}
});
Ext.reg('multiSelect', Ext.form.MultiSelect);
2、在ext-all.css文件最后,加入css样式
.ux-MultiSelect-icon { width:16px; height:16px; float:left; background-position: -1px -1px ! important; background-repeat:no-repeat ! important; }.ux-MultiSelect-icon-checked { background: transparent url(../images/default/menu/checked.gif); }
.ux-MultiSelect-icon-unchecked { background: transparent url(../images/default/menu/unchecked.gif); }
3、使用
var DepartUserStore=new Ext.data.Store({
proxy: new Ext.data.HttpProxy(
{
url:'/Web/Manage/DeskTop/JSON/ScheduleManager/GetSimpleDepartUserInfo.aspx'
}),
//读取Json
reader: new Ext.data.JsonReader(
{ totalProperty: "totalCount", root: "root" },
[
{name:'UserId',type:'int'},
{name:'UserName',type:'string'}
])
});
var DepartUserCbox = new Ext.form.MultiSelect(
{
fieldLabel: ' 姓名',
labelStyle: 'width:80px',
width: 150,
editable: false,
id: 'DepartUserDS',
hiddenName:'DepartUserIdDS',
store: DepartUserStore,
emptyText: '--请选择--',
allowBlank: false,
blankText: '请选择',
mode:'remote',
displayField: 'UserName',
valueField: 'UserId',
triggerAction: 'all',
selectOnFocus: true,
listWidth: 200
});
DepartUserStore.on('load', function ()
{
DepartUserCbox.selectAll(); //全选
});
DepartUserStore.load();
三、EXCEL 数据有效性下拉框,如何多选?谢谢,万分感激
Private Sub Worksheet_Change(ByVal Target As Range)Dim rngDV As Range, oldVal As String, newVal As String
If Target.CountLarge > 1 Then GoTo exitHandler
On Error Resume Next
Set rngDV = Cells.SpecialCells(xlCellTypeAllValidation)
On Error GoTo exitHandler
If rngDV Is Nothing Then GoTo exitHandler
If Intersect(Target, rngDV) Is Nothing Then
'do nothing
Else
Application.EnableEvents = False
newVal = Target.Value
Application.Undo
oldVal = Target.Value
Target.Value = newVal
If Target.Column = 5 Or Target.Column = 7 Or Target.Column = 9 Or Target.Column = 11 Then '这里规定好哪一列的数据有效性是多选的,A列是第1列,依次类推,如3就是C列,7就是G列
If oldVal = "" Then
'do nothing
Else
If newVal = "" Then
'do nothing
Else
If newVal = "全选" Then '当新选择的值是全选时,目标值为全选
Target.Value = "全选"
Else
If InStr(1, oldVal, "全选") <> 0 Then '当目标值中有全选时,选择新的非全选值时为新的值
Target.Value = newVal
Else
If InStr(1, oldVal, newVal) <> 0 Then '重复选择视同删除
If InStr(1, oldVal, newVal) + Len(newVal) - 1 = Len(oldVal) Then '最后一个选项重复
Target.Value = Left(oldVal, Len(oldVal) - Len(newVal) - 1)
Else
Target.Value = Replace(oldVal, newVal & ",", "") '不是最后一个选项重复的时候处理逗号
End If
Else '不是重复选项就视同增加选项
Target.Value = oldVal & "," & newVal
End If
End If
End If
End If
End If
End If
End If
exitHandler:
Application.EnableEvents = True
End Sub
使用VBA代码是可以实现复选的功能!
四、vb6中怎样实现可多选的下拉框?(像是combobox和listbox的结合体)
VB6里面实现不了。只能做成一个一览。可以利用部分功能满足你的需求。listbox里面有个属性Style。设置为1:CheckBox就可以了。
想做成你说的那样的话,得自己自定义插件。
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