DevExpress在ClientSide中获取ASPxComboBox的选定值

问题描述

我有一个ASPxGridview包含ASPxComboBox的一个字段我想要获取一个ASPxComboBox的选定的值并显示在一个标签。在我下面的代码中，我只是将值保存在alert（）消息中。但是我得到的是一个null的值。任何人都知道如何解决我的问题？非常感谢你。

这是我到目前为止

 < dx：ASPxGridView ID =ASPxGridView2OnRowDataBound =ASPxGridView2_RowDataBoundClientInstanceName =gridrunat =serverAutoGenerateColumns =FalseDataSourceID =fordtlKeyFieldName =chndtl_no> 
 
< dx：GridViewDataTextColumn FieldName =productName =dd_productShowInCustomizationForm =trueVisibleIndex =7> 
< SettingsHeaderFilter> 
< DateRangePickerSettings EditFormatString =/> 
< / SettingsHeaderFilter> 
< EditItemTemplate> 
< dx：ASPxComboBox ID =ASPxComboBoxProductrunat =serverClientInstanceName =averyAutoPostBack =trueDataSourceID =ProductEnableCallbackMode =trueTextField =pd_product> 
< ClientSideEvents SelectedIndexChanged =function（s，e）{OnProductChanged（s）;}>< / ClientSideEvents> 
< / dx：ASPxComboBox> 
< / EditItemTemplate> 
< / dx：GridViewDataTextColumn> 
 
< / dx：ASPxGridView> 
  

JavaScript

  function OnProductChanged（s，e）{
 var getProduct = document.getElementById（ASPxComboBoxProduct）; 
 alert（getProduct）; 
} 
  

解决方案

-

 < ClientSideEvents SelectedIndexChanged =function（e，s）{OnProductChanged（）;}> 
< / ClientSideEvents> 
  

从此替换您的JavaScript函数并检查。

  function OnProductChanged（e，s）
 {
 var selectedValue = e.lastSuccessValue; 
 alert（selectedValue）; 
} 
  

I have a ASPxGridview that contains a field with ASPxComboBox I want to get the selected value of a ASPxComboBox and display it in a label. In my code below I just store the value on alert() message. But all I'm getting is a "null" value.Can anyone know how to solve my problem? Thank you so much.

Here's what I have so far

<dx:ASPxGridView ID="ASPxGridView2" OnRowDataBound="ASPxGridView2_RowDataBound" ClientInstanceName="grid" runat="server" AutoGenerateColumns="False" DataSourceID="fordtl" KeyFieldName = "chndtl_no">

<dx:GridViewDataTextColumn FieldName="product" Name="dd_product" ShowInCustomizationForm="true" VisibleIndex="7">
<SettingsHeaderFilter>
<DateRangePickerSettings EditFormatString="" />
</SettingsHeaderFilter>
<EditItemTemplate>
<dx:ASPxComboBox ID="ASPxComboBoxProduct" runat="server" ClientInstanceName="avery" AutoPostBack="true" DataSourceID="Product" EnableCallbackMode="true" TextField="pd_product">
<ClientSideEvents SelectedIndexChanged="function(s, e) { OnProductChanged(s);}"></ClientSideEvents>
</dx:ASPxComboBox>
</EditItemTemplate>
</dx:GridViewDataTextColumn>

</dx:ASPxGridView>

JavaScript

function OnProductChanged(s, e) {
   var getProduct = document.getElementById("ASPxComboBoxProduct");
   alert(getProduct);
}

解决方案

Replace this in you aspx code -

<ClientSideEvents SelectedIndexChanged="function(e,s) { OnProductChanged();}">
</ClientSideEvents>

Replace your javascript function from this and check.

function OnProductChanged(e, s)
{
      var selectedValue = e.lastSuccessValue;
      alert(selectedValue);
}

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