EXT 下拉框事件

1.

<ext:ComboBox ID="cbline" FieldLabel="平台部门来源" runat="server" DisplayField="UD_Value"
ValueField="UD_Text" Editable="False">

----可用不可用  给的默认值
<SelectedItems>
<ext:ListItem Text="淘宝" Value="淘宝" />
</SelectedItems>

---可用不可用
<Store>
<ext:Store ID="cblinestore" runat="server">
<Model>
<ext:Model ID="Model1" runat="server">
<Fields>
<ext:ModelField Name="UD_Value" />
<ext:ModelField Name="UD_Text" />
</Fields>
</ext:Model>
</Model>
</ext:Store>
</Store>
<Listeners>
<Select Handler="OpenToolsWid(1);" />
<%-- <Change Handler="OpenToolsWid(1);"></Change>--%>
</Listeners>
</ext:ComboBox>

var widtype;
var cndep;
function OpenToolsWid(wt, rec) {
debugger;
widtype = wt;
switch (widtype) {
case 1:
var nvalue;
nvalue = Ext.getCmp("cbline").value;
Ext.getCmp("tline").setValue(nvalue);
ServerX.SelectLine(nvalue, {
success:
function (result) {

}
});
};
}

2.

<ext:ComboBox ID="cbdep" FieldLabel="选择平台部门" runat="server" DisplayField="OBD_OnlineDepName"
ValueField="OBD_OnlineDepNum" Editable="False">
<Store>
<ext:Store ID="DepModelstore" runat="server">
<Model>
<ext:Model ID="Ols_DepartmenModel" runat="server">
<Fields>
<ext:ModelField Name="OBD_OnlineDepNum" />
<ext:ModelField Name="OBD_OnlineDepName" />
<ext:ModelField Name="OBD_BSSDepNum" />
<ext:ModelField Name="OBD_BSSDepName" />
</Fields>
</ext:Model>
</Model>
</ext:Store>
</Store>
<DirectEvents>
<Select OnEvent="ComDet">
<ExtraParams>
<ext:Parameter Name="com1" Value="Ext.encode(#{cbdep}.displayTplData[0])" Mode="Raw" />
</ExtraParams>
</Select>
</DirectEvents>
</ext:ComboBox>

//后台

protected void ComDet(object sender, DirectEventArgs e)
{
string com1 = e.ExtraParams["com1"];
//XmlNode grid1Xml = JSON.DeserializeXmlNode("{records:{record:" + com1 + "}}");
OnLineBssDep model = JSON.Deserialize<OnLineBssDep>(com1);

}

//临时model

public class OnLineBssDep
{
public OnLineBssDep()
{
}

public string OBD_OnlineDepNum { get; set; }
public string OBD_OnlineDepName { get; set; }
public string OBD_BSSDepNum { get; set; }
public string OBD_BSSDepName { get; set; }
}

3.清空下拉框记录

cbdep.Clear();
DepModelstore.DataSource = new List<string>();//清空下拉框历史记录
DepModelstore.DataBind();