Customize EntityEditorWithPicker with AfterCallbackClientScript

Working With Customize EntityEditorWithPicker with AfterCallbackClientScript  

First download the custom picker control by going to the following link




Why we need to customize the above code. Once the user select the city from the picker we need to automatically fill up the City PIN no. as well as the City STD Code ect.  


EntityPicker control is the AfterCallbackClientScript Property which allows you to provide a name of a JavaScript function that will be executed after an entity has been chosen/resolved.

Once you add the following line of code in your page. (as you downloaded from the link that provided above in layout page PickerPage.aspx)

<SPSolutions:CityEditor id="CityEditorSingle" runat="server"
                        MultiSelect="false"
                        ValidatorEnabled="false"
                        MaximumEntities="1" />           


    <tr>
            <td>City Pin Number</td>
            <td> <asp:TextBox ID="txtPinNumber" runat="server"></asp:TextBox></td>
        </tr>
         <tr>
            <td>STD Code</td>
            <td> <asp:TextBox ID="txtStdCode" runat="server"></asp:TextBox></td>
        </tr>


Once you add the control in your page. You need to override the OnpreRender and write the bellow lines. 


protected override void OnPreRender(EventArgs e)
        {
            CityEditorSingle.AfterCallbackClientScript = "entityEditorCallback";
            base.OnPreRender(e);
        } 

        
you need to Modify the file name CityQueryControl.cs.(downloaded from the above link) see the function name GetEntry and 


    public override PickerEntity GetEntity(DataRow dataRow)
        {
            // No datarow provided
            if (dataRow == null)
                return null;

            // Create new picker
            PickerEntity entity = new PickerEntity();
            entity.Key = Convert.ToString(dataRow[CityEditor.CityInfo.CityId]);
            entity.DisplayText = Convert.ToString(dataRow[CityEditor.CityInfo.Title]);
            entity.Description = Convert.ToString(dataRow[CityEditor.CityInfo.State]);
            entity.IsResolved = true;

            // GetHashTable By ID

            Hashtable EntityData = new Hashtable();
            EntityData.Add(“STDCode", "0172");
            EntityData.Add("PinNumber", “160023”);

            // Add extended data1),
            entity.EntityData.Clear();
            entity.EntityData = EntityData; // either you can put use the helper method that will return the has values depend upon you city. By using the helper method.
            return entity;
        }


After resolving the entities the picker will pass the data, serialized to XML, to the JavaScript callback method. The XML will look like this:


<Entities Append="False" Error="" Separator=";" MaxHeight="3">
  <Entity Key="1" DisplayText="Chandigarh" IsResolved="True" Description="">
    <ExtraData>
      <ArrayOfDictionaryEntry xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
        <DictionaryEntry>
          <Key xsi:type="xsd:string"> STDCode </Key>
          <Value xsi:type="xsd:string">0172</Value>
        </DictionaryEntry>
        <DictionaryEntry>
          <Key xsi:type="xsd:string"> PinNumber </Key>
          <Value xsi:type="xsd:string">160023</Value>
        </DictionaryEntry>
      </ArrayOfDictionaryEntry>
    </ExtraData>
    <MultipleMatches />
  </Entity>
</Entities>


Next you need to put the following code in you html source of  PickerPage.aspx (downloaded from the above link)

   function entityEditorCallback(senderId, data) {
                // when you alert the data it will return the above xml data.
                //senderid is the client id of the control. If there are more than one you can use the were close to //distinguish if there only one function applied single functions.
                Alert(data);
            }

Following script you need to put inside the page head
<asp:Content ID="PageHead" ContentPlaceHolderID="PlaceHolderAdditionalPageHead" runat="server">

<script type="text/javascript" src="http://code.jquery.com/jquery-1.6.4.min.js"></script>
<script type="text/javascript">

            var Search = Search || {};

//            call back function
            function entityEditorCallback(senderId, data) {
                Search.resolveEntityData(senderId, data);
            }

// return the xml  document.
            Search.createXMLDocument = function (string) {
                var browserName = navigator.appName;
                var doc;

                if (browserName == 'Microsoft Internet Explorer') {
                    doc = new ActiveXObject('Microsoft.XMLDOM');
                    doc.async = 'false'
                    doc.loadXML(string);
                } else {
                    doc = (new DOMParser()).parseFromString(string, 'text/xml');
                }

                return doc;
            }

//getPropertyValue function will return the value of the

            Search.getPropertyValue = function (xmlDoc, propertyName) {
                var value = null;

                var selector = "DictionaryEntry:has(Key:contains('" + propertyName + "')) Value";
                var values = $(xmlDoc).find(selector);

                if (values.length > 0) {
                    value = $(values[0]).text();
                }

                return value;
            }


// resolve the entry .

            Search.resolveEntityData = function (senderId, data) {

                var xmlDoc = Search.createXMLDocument(data);
                var STDCode = Search.getPropertyValue(xmlDoc, "STDCode"); // find the STDCode value
                var PinNumber = Search.getPropertyValue(xmlDoc, "PinNumber"); //Find the PinNumber

                if (STDCode != null) {

                    $("[id$='txtPinNumber']").val(STDCode) // Set the value to txtpinNumber text box
                    //alert(STDCode)

                }
                if (PinNumber != null) {

                    $("[id$='txtPinNumber']").val(PinNumber) // Set the value to txtPinNumber text box
                    //alert(PinNumber)

                } 
            }
          
        </script>

</asp:Content>

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