需要解释的语句:1:“Ext.QuickTips.init();”2: var cm = new Ext.grid.ColumnModel([{
id:'common',
header: "Common Name",
中 “id:'common', ” 做什么用的,xml的key不是后面的dataIndex么;
3:editor: new Ext.form.ComboBox({
typeAhead: true,
triggerAction: 'all',
transform:'light',
lazyRender:true,
listClass: 'x-combo-list-small'
})
中各个属性的含义;4: "Price"那列中 renderer: 'usMoney',是为了显示$符号,请问还有其他几种格式;5: var Plant = Ext.data.Record.create([
// the "name" below matches the tag name to read, except "availDate"
// which is mapped to the tag "availability"
{name: 'common', type: 'string'},
{name: 'botanical', type: 'string'},
{name: 'light'},
{name: 'price', type: 'float'}, // automatic date conversions
{name: 'availDate', mapping: 'availability', type: 'date', dateFormat: 'm/d/Y'},
{name: 'indoor', type: 'bool'}
]);
这段,是否相当于 定义了一个 DataRow Plant ;6: reader: new Ext.data.XmlReader({
// records will have a "plant" tag
record: 'plant'
}, Plant),
其中 “// records will have a "plant" tag
record: 'plant'”
这是什么意思;7: “clicksToEdit:1,” 何意?8: grid.stopEditing();
store.insert(0, p);
grid.startEditing(0, 0);
为何不管是否 有这句 “grid.startEditing(0, 0);” grid都是可修改的呢?9: 请问 “this.renderer = this.renderer.createDelegate(this);”
这句话 委托到哪里了? ---〉
renderer : function(v, p, record){
p.css += ' x-grid3-check-col-td';
return '<div class="x-grid3-check-col'+(v?'-on':'')+' x-grid3-cc- '+this.id+'"> </div>';}
这里吗? 这里 return 了什么东西;谢谢了,初学,问题比较多?
id:'common',
header: "Common Name",
中 “id:'common', ” 做什么用的,xml的key不是后面的dataIndex么;
3:editor: new Ext.form.ComboBox({
typeAhead: true,
triggerAction: 'all',
transform:'light',
lazyRender:true,
listClass: 'x-combo-list-small'
})
中各个属性的含义;4: "Price"那列中 renderer: 'usMoney',是为了显示$符号,请问还有其他几种格式;5: var Plant = Ext.data.Record.create([
// the "name" below matches the tag name to read, except "availDate"
// which is mapped to the tag "availability"
{name: 'common', type: 'string'},
{name: 'botanical', type: 'string'},
{name: 'light'},
{name: 'price', type: 'float'}, // automatic date conversions
{name: 'availDate', mapping: 'availability', type: 'date', dateFormat: 'm/d/Y'},
{name: 'indoor', type: 'bool'}
]);
这段,是否相当于 定义了一个 DataRow Plant ;6: reader: new Ext.data.XmlReader({
// records will have a "plant" tag
record: 'plant'
}, Plant),
其中 “// records will have a "plant" tag
record: 'plant'”
这是什么意思;7: “clicksToEdit:1,” 何意?8: grid.stopEditing();
store.insert(0, p);
grid.startEditing(0, 0);
为何不管是否 有这句 “grid.startEditing(0, 0);” grid都是可修改的呢?9: 请问 “this.renderer = this.renderer.createDelegate(this);”
这句话 委托到哪里了? ---〉
renderer : function(v, p, record){
p.css += ' x-grid3-check-col-td';
return '<div class="x-grid3-check-col'+(v?'-on':'')+' x-grid3-cc- '+this.id+'"> </div>';}
这里吗? 这里 return 了什么东西;谢谢了,初学,问题比较多?
id:'common',
header: "Common Name",
中 “id:'common', ” 做什么用的,xml的key不是后面的dataIndex么;这里的id 用于指明ColumModel的id (DOM),与xml无关。在后面可以用Ext.getCmp()获取这个CM。3:editor: new Ext.form.ComboBox({
typeAhead: true,
triggerAction: 'all',
transform:'light',
lazyRender:true,
listClass: 'x-combo-list-small'
})
中各个属性的含义;
详见Ext的API中ComboBox部分4: "Price"那列中 renderer: 'usMoney',是为了显示$符号,请问还有其他几种格式;
详见Ext的API中Ext.util.Format部分5: var Plant = Ext.data.Record.create([
// the "name" below matches the tag name to read, except "availDate"
// which is mapped to the tag "availability"
{name: 'common', type: 'string'},
{name: 'botanical', type: 'string'},
{name: 'light'},
{name: 'price', type: 'float'}, // automatic date conversions
{name: 'availDate', mapping: 'availability', type: 'date', dateFormat: 'm/d/Y'},
{name: 'indoor', type: 'bool'}
]);
这段,是否相当于 定义了一个 DataRow Plant ;
不是,是定义了一个数据类型,注释里面写的很清楚:"we want to define the Plant record type so we can add records dynamically"。6: reader: new Ext.data.XmlReader({
// records will have a "plant" tag
record: 'plant'
}, Plant),
其中 “// records will have a "plant" tag
record: 'plant'”
这是什么意思;
这段建立了一个reader,将xml中的plant元素读取到Plant这个解析器中去。7: “clicksToEdit:1,” 何意?
详见Ext的API中的Ext.grid.EditorGridPanel8: grid.stopEditing();
store.insert(0, p);
grid.startEditing(0, 0);
为何不管是否 有这句 “grid.startEditing(0, 0);” grid都是可修改的呢?
是这样的,这里是工具栏上"Add Plant"的处理过程,而不是grid的属性。因此不会影响grid能否修改。9: 请问 “this.renderer = this.renderer.createDelegate(this);”
这句话 委托到哪里了? ---〉
renderer : function(v, p, record){
p.css += ' x-grid3-check-col-td';
return ' <div class="x-grid3-check-col'+(v?'-on':'')+' x-grid3-cc-'+this.id+'">  </div>';}
这里吗? 这里 return 了什么东西;
没错。这里声明了Ext.grid.CheckColumn类,renderer中返回的是用于显示checkbox的HTML语句。
3:editor: new Ext.form.ComboBox({
typeAhead: true, 输入自动提示
triggerAction: 'all', 显示全部
transform:'light', 表单上的SELECT
lazyRender:true, 防止ComboBox渲染
listClass: 'x-combo-list-small' 样式
})
7: “clicksToEdit:1,” 单机编辑