Blog Elements

Half Sized Blog Element (Single Author Style)

Half Sized Blog Element (Multi Author Style)

Knowledge Base, PowerForms HTML, Scripting

Calling a web service programmatically

Here is an example of calling a web service client-side from a Button control within a form. The first thing we have to do is to create the web service call in Web Services section. In our example we will demonstrate one of the default sharepoint web services Lists.asmx. We give the name ‘All Lists’, […]

August 13, 2017/by Konstantinos

Knowledge Base, PowerForms HTML, Scripting

Handling the Value-Change event of controls

There is a special section in the control properties dialog where users can write the client-side script that will be executed when the value for that control changes. All the available methods and properties of the “form” object or the individual control methods can be found here : Form properties and methods Control properties and […]

August 13, 2017/by Konstantinos

Knowledge Base, PowerForms HTML, Scripting

Calling a web service programmatically

August 13, 2017/by Konstantinos

Knowledge Base, PowerForms HTML, Scripting

Handling the Value-Change event of controls

August 13, 2017/by Konstantinos

Calling a web service programmatically

Here is an example of calling a web service client-side from a Button control within a form.

The first thing we have to do is to create the web service call in Web Services section. In our example we will demonstrate one of the default sharepoint web services Lists.asmx.

We give the name ‘All Lists’, we fix the credentials and we set the web service Url http://server/_vti_bin/Lists.asmx.

Then we fill in the method:

Code

<?xml version=”1.0″ encoding=”utf-8″?>

<soap:Envelope xmlns:xsi=”http://www.w3.org/2001/XMLSchema-instance” xmlns:xsd=”http://www.w3.org/2001/XMLSchema” xmlns:soap=”http://schemas.xmlsoap.org/soap/envelope/”>

<soap:Body>

</soap:Body>

</soap:Envelope>

and set the xPath Query: /*[local-name()=’Envelope’]/*[local-name()=’Body’]/*[local-name()=’GetListCollectionResponse’]/*[local-name()=’GetListCollectionResult’]/*[local-name()=’Lists’]/*[local-name()=’List’]

Last we declare whice attributes want the service to show.

Our web service call ‘All Lists’ is ready.

Now in the desired list we place a button control and a label control. The button will execute the call and the results will be showed in the label.

We edit the button control properties and go to the ‘Extra’ tab.

We place the scipt:

Code

function callback(e) {

var c = form.GetControl(“c_WSResult”);

var s = “<table cellspacing=’0′ cellpadding=’3′ width=’100%’>
<tr><td style=’background-color:#ccc’>List Name</td>
<td style=’background-color:#ccc’>Action</td></tr>”;

if (pf.IsEmpty(e.ErrorMessage)) {

for (var i=0;i<e.ListItems.length;i++) {

name = e.ListItems[i].Title;

url = “<a href=\”#\” onclick=\”w = window.open(‘http://wssdev1/Lists/” + e.ListItems[i].Title + “‘,”,’
width=800, height=600, resizable=yes, scrollbars=yes’);\” style=\”color:#cc6600\”>
Open List</a>”;s += “<tr><td>” + name + “</td><td>” + url + “</td></tr>”;

}

s += “</table>”;

c.SetValue(s);

}

else {

c.SetValue(e.ErrorMessage);

}

form.GetControl(“c_WSButton”).SetEnable(true);

}

form.GetControl(“c_WSResult”).SetValue(“Loading…”);

form.GetControl(“c_WSButton”).SetEnable(false);

form.CallWebService(“All Lists”, callback);

As you can see this script uses the CallWebService(WebServiceName, Callback function) method.It executes the web service call and handles the result data in callback function.In this function an html table is created with 2 columns Llist Name and Action. It is populated with all the list names and a link that opens a new windoe for each list.The whole html table is set to the label c_WSResult.

Before call:

During Call:

After Call:

August 13, 2017/by Konstantinos

Handling the Value-Change event of controls

There is a special section in the control properties dialog where users can write the client-side script that will be executed when the value for that control changes.

All the available methods and properties of the “form” object or the individual control methods can be found here :

Form properties and methods

Control properties and methods

The Value-Change event of each control is raised every time the value of that control changes due to :

1. A user action on the control

2. The form itself setting the value during initialization

3. A script added in the form that changes the value of a specific control.

In order to determine if the change is due to the initialization of the form, the “form.Loaded” property should be used.

For example :

Code

var value = form.GetControl(“c_Status”).GetValue();

if (form.Loaded) {

if (value == “Closed”) form.GetControl(“c_Progress”).SetValue(“100”);

}

August 13, 2017/by Konstantinos

Half Sized Blog Element (Single Author Style)

Half Sized Blog Element (Multi Author Style)

Full Sized Blog Element (Big Preview Pic)