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    <p>If you have access to jQuery I would use it's ajax function to call a wcf web service that returns the relevant address information in a JSON format. Otherwise, you could create your own XHR request and parse the response.</p> <pre><code>$('#zipCodeClient').blur(function() { var zipCode = $(this).val(); if(zipCode.length &gt;= 5 &amp;&amp; zipCode.length &lt;= 10) { $.ajax({ type: 'GET', data: { ZipCode: zipCode }, url: 'something/ZipCodeToAddressService', dataType: 'json', contentType: 'application/json; charset=utf-8', success: function(data) { var responseObject = jQuery.parseJSON(data); $('#cityTextBox').val(responseObject.City); $('#stateTextBox').val(responseObject.State); } }); } else { // zip code not valid } }); </code></pre> <p>In WCF:</p> <pre><code>[ServiceContract()] public interface IAddressServices { [OperationContract()] [WebGet(ResponseFormat = WebMessageFormat.Json)] string ZipCodeToAddressService(string ZipCode); } [ServiceBehavior(InstanceContextMode = InstanceContextMode.PerCall, ConcurrencyMode = ConcurrencyMode.Multiple)] public class AddressServices : IAddressServices { public string ZipCodeToAddressService(string ZipCode) { using (SqlConnection sqlConnection = new SqlConnection(ConfigurationManager.ConnectionStrings["DB"].ConnectionString)) { using (SqlCommand sqlCmd = new SqlCommand("ZipCodeToAddressStoredProc", sqlConnection)) { sqlCmd.CommandType = CommandType.StoredProcedure; sqlCmd.Parameters.Add("@Zip", SqlDbType.NVarChar).Value = ZipCode; sqlConnection.Open(); SqlDataReader sDR = sqlCmd.ExecuteReader(CommandBehavior.CloseConnection); DataTable tbl = new DataTable(); tbl.Load(sDR); sDR.Close(); var citystateData = from DataRow Row in tbl.AsEnumerable() select new { City = Row.Field&lt;string&gt;("City"), State = Row.Field&lt;string&gt;("State") }; JavaScriptSerializer js = new JavaScriptSerializer(); StringBuilder sb = new StringBuilder(); js.Serialize(cityStateData, sb); string rtrnCityStateData = sb.ToString(); return rtrnCityStateData; } } } } </code></pre>
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    1. COHi! Thanks for your answear. I used this function like you did, but just showing a alert on onBlur, and didn't showed up :( $('#zipCodeClient').onBlur(function () { var zipCode = $(this).val(); alert("OnBlur!"); });
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    2. CO.Net has a weird way of assigning id's to html controls. When you're in debug mode, open the page source in the browser and see what the assigned id is of the text box you're trying to grab the onBlur event on. It will probably be something weird like $ctl00_zipCodeClient - fun.
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    3. CO<input class="text-box single-line" id="zipCodeClient" name="zipCodeClient" type="text" value="" />
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A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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