Assertion Message
The Assertion Message control displays the assertion message of the first invalid assertion of the page. An Assertion is a property of a page and of some—not all—controls. It specifies a certain condition (for example that a node may not be empty). If the Assertion property's condition is not met, the assertion is invalid, and the Assertion Message property associated with that Assertion property is displayed in the Assertion Message control.
An Assertion Message control can be placed anywhere in the design. It will always display the Assertion Message property text that is associated with the first invalid assertion on the page. If there are multiple invalid assertions on a page, then the assertion message of the first invalid assertion (in the sequence in which assertions appear on the page) is displayed. The Assertion Message control should therefore be inserted only once on a page. If multiple Assertion Message controls are placed in the design, they will all display the same assertion message (that of the first invalid assertion).
Assertions and assertion messages work as follows:
•The Assertion property of a control or page sets a condition to be met in order for the assertion to be valid. The assertion's condition is specified with an XPath expression.
•If the assertion is invalid, then the text of the control's Assertion Message property is displayed in the Assertion Message control.
For example: The XPath expression LastName != "" in the Assertion property of a control asserts that the node LastName must not be empty. If this node is empty, then the control's assertion message is displayed in the page at the point where the Assertion Message control is inserted.
•To reset a style or property (in the Styles & Properties Pane), select the property and click Reset in the pane's toolbar. •To edit the XPath expression of a style or property (in the Styles & Properties Pane), select the style or property, and click Edit XPath in the pane's toolbar. •To copy a control to another location in the design, press Ctrl and drag-and-drop the control to the desired copy location. |
Assertion Message events
There is no event associated with the Assertion Message control.
Assertion Message properties
The control's properties are available in the Styles & Properties Pane, and are listed below in the order in which they appear.
The name is used to reference the control from elsewhere in the page or project. Double-click inside the value field to edit.
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The All Styles property becomes visible if the All Styles setting of the More Project Settings dialog has been set to true. (The default of this setting is false.)
The property enables you to set all of the component's styles via a single XPath map expression, such as the two map expressions below:
map{ "Bold Text" : $XML1/R/@bold = "1", "Italic Text" : true(), "Text" : "hello", "Text Color" : "red", "Background Color" : $XML1/R/@background, "Text Size" : $XML1/R/@textsize }
map{ "Style Sheet" : "Sheet-1" }
Note the following points:
•When you enter a value for the All Styles property—even if it is not a map—all the styling properties of the current component in the Styles & Properties Pane will no longer be visible . •This is an advanced feature, so you must ensure that your XPath map expression is correct, both syntax and values. •You can enter the key–value pairs of the map in any order. •The key names are the names of style properties (or styles). In the first map above, for example, Bold Text and Text Size are style names. The styles that are available for a particular component are listed under that component in the Styles & Properties Pane. •You can also specify a style sheet to use, as shown in the second map above.
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Sets multiline input/display on or off (true/false). The default is false. If the text of the control is longer than a single line, and the value is true, then the text will wrap to a new line; if the value is false, then the text will be truncated at the end of the first line.
Note •If this property is set to true, and if the Text Size Auto-Fit property is enabled, then the text will not wrap to multiple lines; line break characters in the text would, however, create new lines. •If this property is set to true on a label control, the Max Number of Lines property becomes available. •Check boxes with multilines can be vertically aligned via the Vertical Alignment property.
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Sets the color of the control's text when the control is enabled. You can do one of the following to select the color:
•Click the color palette to select a text color •Select a color from the dropdown list of the combo box •Double-click in the value field to enter a color code (for example, #FF0000), or click the XPath toolbar button and enter an XPath expression to generate the required text
Note: A control can be enabled/disabled according to context. For example, if in a form about personal details, the user enters an affirmative for the holding of life insurance, then the fields for details of the life insurance policy can be enabled; otherwise these fields can be disabled. To enable/disable a field, use the relevant control's Enabled/Editable property. To set a text color for when the control is disabled, use the Text Color (Disabled) property.
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Select a size from the dropdown list of the combo box. Allowed values are: smallest|small|medium|large|largest. Each platform/device has its own pixel-height for each size. So the default text size in pixels is the client-specific pixel-height that corresponds to the value medium.
You can generate other values by using the mt-font-height function. For example, to get a size that is 120% larger than the numeric size that corresponds to 'largest' on a device, use the following XPath expression for the TextSize value: mt-font-height('largest', 'px') * 1.2. The function generates the numeric (pixel) value that corresponds to the 'largest' size. This value is then multiplied by 1.2 to obtain the numeric value that is 120% of the value that corresponds to 'largest'.
For information about the relationships between pixels, dp (device-independent pixels), and sp (scale-independent pixels), see Sizes: Pixels, DPI, DP, SP.
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Sets whether or not the text size should be automatically reduced to fit the width of the control. You can either select the value from the dropdown list or enter it as an XPath string expression. The property's values are:
•off (the text is not automatically resized; this is the default) •ellipsis (adds an ellipsis at the end of the visible text of the control when that text is too long to be displayed in its entirety) •individually (the text of this control only will be automatically resized) •group X (where X=1 to 9). You can set a control to belong to one of nine Auto-Fit groups (where each group is identified by a number from 1 to 9). The text size of all the controls in a group will be automatically resized to that of the control with the smallest of all the auto-fit sizes in that group. This ensures that a selected set of controls has a uniform and reasonable size, so saving you the trouble of finding, by trial and error, the optimum size for a group of controls. •template group X (where X=1 to 9). Like for a group (see previous list item), you can set a control in a control template to belong to one of nine Auto-Fit template groups (where each template group is identified by a number from 1 to 9). A template group is different from a group (previous list item) in that, if set on a control template, it is limited to the controls of a control template—as opposed to the controls of a page. However, you can also use a template group as a group if you set it on a page, and not on a control template.
In Design View, text size will be reduced to a minimum size that is 50% of the font size, even if the auto-fit size is smaller. At runtime, however, the actual auto-fit size will be displayed.
Note •If the Multiline property has been set to true, then: (i) if auto-fit is disabled, the text will wrap to multiple lines; (ii) if auto-fit is enabled, the text will auto-size and will not wrap; line break characters in the text would, however, create new lines.. •This property cannot be enabled if the Max Number of Lines label property has been set. You must choose either to set a maximum number of lines or to auto-fit the text. •In tables, this property can be used with the table's Wrap Content Auto-Fit Group property.
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Select true or false from the dropdown list of the combo box to set the text in bold. You can also use an XPath expression. Default is false.
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Select true or false from the dropdown list of the combo box to set the text in italics. The value can also be generated dynamically via an XPath expression. Default is false.
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Select true or false from the dropdown list of the combo box to set underlining for the text. The value can also be generated dynamically via an XPath expression. Default is false.
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Sets the background color of the object when the object is enabled. You can do one of the following to select the color:
•Click the color palette to select a background color •Select a color from the dropdown list of the combo box. If the cell contains a control, you might want to select the option Control's background color. •Double-click in the value field to enter a color code (for example, #FF0000), or click the XPath toolbar button and enter an XPath expression to generate the required text. To take up the background color of the control, enter the XPath expression: "control".
Note: You can set the background color of the cell to be the same as the background color of the control in the cell, by either: (i) selecting Control's background color in the property's combo box, or (ii) entering the XPath expression "control" in the property's value field.
Note: A control can be enabled/disabled according to context. For example, if in a form about personal details, the user enters an affirmative for the holding of life insurance, then the fields for details of the life insurance policy can be enabled; otherwise these fields can be disabled. To enable/disable a field, use the relevant control's Enabled/Editable property. To set a background color for when the object is disabled, use the Background Color (Disabled) property.
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Sets the text that appears as a tooltip when the end user hovers over the control with the mouse or long presses the control. A tooltip provides useful information to the end user about the control. Double-click inside the value field to edit. If an action has been set for a long press of the control, then no tooltip will be shown on a long press.
Note: Tooltips are not available on all controls, and for some controls they are not available on all platforms. On iOS, tooltips are not available for Edit Field or Signature controls.
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This property applies in the case of some controls (such as images and vertical lines) to the control, in other cases (such as radio buttons and check boxes) to the text that accompanies the control. The property sets the horizontal alignment of the control or text to left, center, or right. Default is left for all controls except vertical lines, for which it is center. The property's value can also be specified via an XPath expression (which enables the value to be generated dynamically).
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Sets the vertical alignment to top, middle, or bottom. Default is middle. The value can also be specified via an XPath expression (which enables the value to be generated dynamically). For Check Box controls, the property sets the vertical alignment of the check box relative to its text if the text is multiline (see the Multiline property)
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Sets the width of the control. Select a value from the property's combo box. The following values are available:
•fill_parent: makes the control as wide as the parent, which could be, for example, a table cell or the page •wrap_content: makes the control only as wide as the control's content requires; when this value is selected, the property Max Control Width becomes available •wrap_content_longest_entry: is available for combo box controls and makes the combo box as wide as the longest content requires; when this property value is selected, the property Max Control Width becomes available •percent value: a percentage of the page width; select a value from the dropdown list, or enter a value directly •pixel, dp, or sp value: select a pixel, dp, or sp value from the dropdown list, or enter a value directly
In effect, fill_parent creates a maximum width, while wrap_content creates a minimum width. If the combo box is within a table cell, for example, fill_parent would let the combo box fill the cell whereas wrap_content might not fill the cell.
The default value is fill_parent for all controls except the following:
•Image and Chart: For these, the default is wrap_content. •Geolocation Map: The default is the smaller of the two values $MT_CanvasX and $MT_CanvasY. These two dynamic variables give, respectively, the width and height of the device's viewport. Since the default of both Control Height and Control Width are the same (in each case, the smaller of $MT_CanvasX and $MT_CanvasY), the default shape and size of the viewport in the control will always be a square with side equal to min($MT_CanvasX, $MT_CanvasY).
For information about the relationships between pixels, dp (device-independent pixels), and sp (scale-independent pixels), see Sizes: Pixels, DPI, DP, SP.
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This property is available only when the control's Control Width property has been set to wrap_content. The Max Control Width property sets the maximum width of the control. Select a value from the property's combo box. The following values are available:
•percent value: a percentage of the page width; select a value from the dropdown list, or enter a value directly •pixel, dp, or sp value: select a pixel, dp, or sp value from the dropdown list, or enter a value directly
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Sets the margin offsets of the control (or page) relative to the surrounding objects or to the borders of the containing object. Select a value in pixels, dp, or sp from the dropdown list of the combo box, or double-click in the value field to enter a length value. The specified offset will be created on all four sides of the control or page. If you wish to set a different margin for any of the four sides, expand the Margin property to display the individual margin properties (left, right, top and bottom), and set the different value. For example: If you set Margin to be 6px and Margin Bottom to be 12px, then the top, left and right margins will be 6px and the bottom margin will be 12px.
For information about the relationships between pixels, dp (device-independent pixels), and sp (scale-independent pixels), see Sizes: Pixels, DPI, DP, SP.
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Sets the control's padding, which is the space between the control's border and the control's content. If the control is a table and the padding is set on a table row or column, then the padding is added to the margin of any control that is contained in the row or column; this increases the inset of the contained control and does not modify the size of table cells.
Select a value in pixels, dp, or sp from the dropdown list of the combo box, or double-click in the value field to enter a length value. The padding will be set on all four sides of the control. If you wish to set a different padding for any of the four sides, expand the Padding property to display the individual padding properties (left, right, top and bottom), and set the different value. For example: If you set Padding to be 6px and Padding Bottom to be 12px, then the top, left and right padding will be 6px and the bottom padding will be 12px.
For information about the relationships between pixels, dp (device-independent pixels), and sp (scale-independent pixels), see Sizes: Pixels, DPI, DP, SP.
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The Style Sheet property sets the style sheet to use for the control. The dropdown list of the Style Sheet property's combo box displays all the user-created style sheets that have been defined in the project. Select the style sheet you want to use for the control. Alternatively, you can use an XPath expression to select the style sheet you want; this has the advantage that you can make the selection of the style sheet conditional (see Applying User-Created Style Sheets). See the section Style Sheets for more information.
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The name of one or more CSS classes that you want to associate with this control. Use a space to assign multiple classes: LabelClassOne LabelClassTwo. These classes can then be used in a CSS file (specified in the Browser Settings dialog) to assign properties specifically for this control. You can also use an XPath expression to generate or fetch the names of the class(es).
You can use the following predefined value to set specific behavior:
•mt-combo-open-on-focus opens the dropdown list of a combo box when the user tabs to it. You can use this value on (i) combo box controls and (ii) on table controls if the table contains combo box controls. Alternatively, if you want to open all combo boxes on a page individually, then you can set this value on the Browser CSS Class page property.
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