Loop
- Windows
Declaration
<AMLOOP ACTIVITY="windows" RESULTVARIABLE="text" ALLOWHIDDEN="YES/NO" INCLUDE="text" EXCLUDE="text" WINDOWHANDLEVARIABLE="text" RESULTDATASET="text" SORT="text (options)" />
Overview
Loops through all of the Windows that are currently open on the system. The variable specified is updated with the current window title. With each successive loop, the next window title is retrieved. The loop ends after the window title of all the open windows are retrieved or when a Break is encountered.
Practical usage
Ideally used to perform operations on more than one window open on the system.
Parameters
General
| Property | Type | Required | Default | Markup | Description |
|---|---|---|---|---|---|
| Store window title in variable | Text | Yes | (Empty) | RESULTVARIABLE="varname" | The name of an existing variable to populate with the current window title upon each successive loop. |
| Include hidden windows | Yes/No | No | No | ALLOWHIDDEN="yes" | If selected, invisible (or hidden) windows are included in the loop results. |
Advanced
| Property | Type | Required | Default | Markup | Description |
|---|---|---|---|---|---|
| Include Windows | Text | No | (Empty) | INCLUDE="*Microsoft Edge" | If enabled, specifies a wildcard mask to designate the titles of windows to include in the loop. Supported wildcard characters are:
|
| Exclude Windows | Text | No | (Empty) | EXCLUDE="*Microsoft Edge" | If enabled, specifies a wildcard mask to designate the titles of the windows to exclude from the loop. Supported wildcard characters are:
|
| Store window handle in variable | Text | No | Disabled | WINDOWHANDLEVARIABLE="Var1" | If enabled, indicates the name of the variable to populate with the current window handle upon each successive loop. This parameter is disabled by default. |
| Create and populate dataset | Text | No | Disabled | RESULTDATASET="theDataset" | If enabled, indicates the name of a dataset to create and populate with data about each window being looped. In addition to the standard dataset fields, this dataset contains specific action specific fields entered below under Datasets. This parameter is disabled by default. |
| List presorting | Text (options) | No | None |
| Specifies
if a sort order is applied to the window titles before
loop begins. The available options are:
|
Additional notes
Datasets
A dataset is a multiple column, multiple row container object. For example, in a SQL- Query action, the fields contained within the created dataset are determined by the executed query. For example if the following query is executed,
SELECT firstname, lastname, company from customer where city='Los Angeles';
Then the following dataset is generated (where datasetname specifies the name of the dataset):
datasetname.firstname
datasetname.lastname
datasetname.compan
A record (row) is created for each record (row) that is retrieved from the server. To access this data use the Loop - Dataset activity to loop through the records, inside the loop you can extract the data from the field of your choice (from the current record) by using an embedded expression such as the one that follows:
%datasetname.firstname%
or you can combine two fields together:
%datasetname.firstname + " " + datasetname.lastname%
Embedded Expressions such as these can be used in any parameter in any action. So, to display the data in a message box the AML code looks similar to the following:
<AMMESSAGEBOX MESSAGETEXT="%datasetname.firstname%" WINDOWTITLE="The firstname of the current record is"
At runtime, %datasetname.firstname% is replaced by the contents of the subject of the current record.
The following activity creates a dataset with the following fields (assuming the name of the dataset is theDataset):
| Name | Data Type | Return Value |
|---|---|---|
| theDataset.Title | Text | The window title. |
| theDataset.Handle | Number | The window handle. |
| theDataset.Class | Text | The window class. |
There are standard fields included in every dataset. The following table describes these fields (assuming the name of the dataset is theDataset):
| Name | Data Type | Return Value |
|---|---|---|
| theDataset.CurrentRow | Number | The current row accessed in the dataset by an expression that does not contain a specific row index. |
| theDataset.TotalRows | Number | The total number of rows in the dataset |
| theDataset.TotalColumns | Number | The total number of columns (not including the static columns) in the dataset. |
| theDataset.ExecutionDate | Date | The date and time the dataset is created and populated |
| theDataset.RowsAffected | Number | The number of rows affected by an update. |
| theDataset.SQLQuery | Text | The SQL Query used to generate this dataset. If a SQL Query is not used, this value is empty. |
| theDataset.Datasource | Text | The datasource used for the SQL Query, if applicable. |
| theDataset.ColumnNames | Text | A comma-delimited list of the column names in the dataset |
Variables and expressions
All text fields allow the use of expressions, which can be entered by surrounding the expression in percent signs (%). For example, %myVariable% or %Left('Text',2)%). To help construct these expressions, you can open Expression Builder from these fields by clicking theInsert expression/variable button or by pressing F2 on your keyboard.
More on variables
More on expressions
More on the Expression Builder
Example
- Copy and paste the sample AML code below directly into the Task Builder Steps Panel.
- To successfully run the sample code, update parameters containing user credentials, files, file paths, or other information specific to the task to match your environment.
Example 1
Loop Windows action used to loop all open windows in alphabetical order, excluding windows that contain the text Microsoft Edge in its title. A message is displayed during each successful iteration, displaying the title of the current window.
<AMVARIABLE NAME="theTitle" VALUE="" />
<AMLOOP ACTIVITY="windows" RESULTVARIABLE="theTitle" EXCLUDE="*Microsoft Edge*" SORT="ascending" />
<AMSHOWDIALOG>A Window titled "%varTitle%" is currently open</AMSHOWDIALOG>
<AMLOOP ACTIVITY="end" />Example 2
Loop Windows and close all windows that contain the text Microsoft Edge in its title.
<AMVARIABLE NAME="theTitle" VALUE="" />
<AMLOOP ACTIVITY="windows" RESULTVARIABLE="theTitle" EXCLUDE="*Microsoft Edge*" SORT="ascending" />
<AMWINDOW ACTIVITY="close" WINDOWTITLE="%theTitle%" />
<AMLOOP ACTIVITY="end" />