如何在asp.net中验证telrik控件tollkit的rad组合框 [英] how to validate rad combo box of telrik control tollkit in asp.net

问题描述

我正在我的页面上使用rad组合框控件并使用其中给出的向导来绑定它...

i尝试使用必需的字段验证器验证这一点，但它不起作用...

i也尝试通过设置initieal值= 0或该索引的文本值







但没有任何工作......

任何建议.. plss bros ...？

 <   telerik： RadComboBox     ID   =  CountryCombo    runat   =  server    CssClass   =  MyComboBox    DataSourceID   =   SqlDataSource1    DataTextField  < span class =code-keyword> =  Country_Name    DataValueField   =  CountryID    EmptyMessage   = 选择国家/地区  >  <   / telerik：RadComboBox  >  
 <   asp：SqlDataSource     ID   =  SqlDataSource1     runat   = < span class =code-keyword> server    ConnectionString   = 数据源= FTPL01 \ SQL2012;初始目录= ZricksDB;持久安全信息=真;用户ID = sa;密码= webuser    ProviderName   =  System.Data.SqlClient    SelectCommand   =  SELECT [CountryID]，[Country_Name] FROM [Country_Master] > ;  <跨度class =code-keyword><   / asp：SqlDataSource  >  
 <   asp：RequiredFieldValidator    < span class =code-attribute> ID   =  RequiredFieldValidator6    runat   =  server    ControlToValidate   =  CountryCombo    InitialValue   =  0    ErrorMessage   =  * >  <   / asp：RequiredFieldValidator  >  

解决方案

不要添加InitialValue。删除它将正常工作。

下面我添加了您可以尝试的代码 -

< telerik： radcombobox id =CountryComborunat =servercssclass =MyComboBoxdatasourceid =SqlDataSource1datatextfield =Country_Namedatavaluefield =CountryIDemptymessage =Select Country>< / telerik：radcombobox> 
 
< asp：sqldatasource id =SqlDataSource1runat =serverconnectionstring =Data Source = FTPL01\SQL2012; Initial Catalog = ZricksDB; Persist Security Info = True; User ID = sa; Password = webuserprovidername =System.Data.SqlClientselectcommand =SELECT [CountryID]，[Country_Name] FROM [Country_Master]>< / asp：sqldatasource> 
 
< asp：requiredfieldvalidator id =RequiredFieldValidator6runat =servercontroltovalidate =CountryComboerrormessage =*>< / asp：requiredfieldvalidator> 

i am using rad combo box control on my page and i bind this by using wizard given in it ...
i trying to validate this using required field validator , but it not working ...
i tried also by setting initieal value =0 or text value of this index



but nothing is working ...
any suggestion .. plss bros... ?

<telerik:RadComboBox ID="CountryCombo" runat="server" CssClass="MyComboBox" DataSourceID="SqlDataSource1" DataTextField="Country_Name" DataValueField="CountryID" EmptyMessage="Select Country"></telerik:RadComboBox>
    <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="Data Source=FTPL01\SQL2012;Initial Catalog=ZricksDB;Persist Security Info=True;User ID=sa;Password=webuser" ProviderName="System.Data.SqlClient" SelectCommand="SELECT [CountryID], [Country_Name] FROM [Country_Master]"></asp:SqlDataSource>
    <asp:RequiredFieldValidator ID="RequiredFieldValidator6" runat="server" ControlToValidate="CountryCombo" InitialValue="0" ErrorMessage="*"></asp:RequiredFieldValidator>

解决方案

Do not add InitialValue. Remove that it will work correctly.
Below i have added code you can try-

<telerik:radcombobox id="CountryCombo" runat="server" cssclass="MyComboBox" datasourceid="SqlDataSource1" datatextfield="Country_Name" datavaluefield="CountryID" emptymessage="Select Country"></telerik:radcombobox>

    <asp:sqldatasource id="SqlDataSource1" runat="server" connectionstring="Data Source=FTPL01\SQL2012;Initial Catalog=ZricksDB;Persist Security Info=True;User ID=sa;Password=webuser" providername="System.Data.SqlClient" selectcommand="SELECT [CountryID], [Country_Name] FROM [Country_Master]"></asp:sqldatasource>

    <asp:requiredfieldvalidator id="RequiredFieldValidator6" runat="server" controltovalidate="CountryCombo" errormessage="*"></asp:requiredfieldvalidator>

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