Many classes have shortcut names used when creating instantiating a class with a configuration object. The shortcut name is referred to as an alias or xtype if the class extends Ext. Framework classes or their members may be specified as private or protected. Publicprotectedand private are access descriptors used to convey how and when the class or class member should be used.

Public classes and class members are available for use by any other class or application code and may be relied upon as a stable and persistent within major product versions. Public classes and members may safely be extended via a subclass.

Protected class members are stable public members intended to be used by the owning class or its subclasses. Protected members may safely be extended via a subclass. Private classes and class members are used internally by the framework and are not intended to be used by application developers.

Private classes and members may change or be omitted from the framework at any time without notice and should not be relied upon in application logic.

Below is an example class member that we can disect to show the syntax of a class member the lookupComponent method as viewed from the Ext.

extjs padding

Button class in this case. This may be overridden in subclasses when special processing needs to be applied to child creation. The API documentation uses a number of flags to further commnicate the class member's function and intent.

extjs padding

The label may be represented by a text label, an abbreviation, or an icon. Just below the class name on an API doc page is a row of buttons corresponding to the types of members owned by the current class. Each button shows a count of members by type this count is updated as filters are applied. Clicking the button will navigate you to that member section.

Hovering over the member-type button will reveal a popup menu of all members of that type for quick navigation. Getting and setter methods that correlate to a class config option will show up in the methods section as well as in the configs section of both the API doc and the member-type menus just beneath the config they work with. The getter and setter method documentation will be found in the config row for easy reference. Your page history is kept in localstorage and displayed using the available real estate just below the top title bar.

You can expand what is displayed by clicking on the button on the right-hand side of the history bar and choosing the "All" radio option. Within the history config menu you will also see a listing of your recent page visits. Clicking on the button will clear the history bar as well as the history kept in local storage.

If "All" is selected in the history config menu the checkbox option for "Show product details in the history bar" will be enabled. Both API docs and guides can be searched for using the search field at the top of the page. On API doc pages there is also a filter input field that filters the member rows using the filter string.Styling grid cells is a common topic for help requests on the Sencha forums.

There are a number of techniques available depending on exactly what styling should be applied where. This article introduces the most widely-used of these techniques along with some of the theory behind how they work. Let's start by taking a look at the default styling for a grid using the blue theme:. Most grid styling is done using CSS.

Below is a simplified version of that markup. At its heart it's really just an HTML table. It's worth taking a moment to familiarize yourself with this markup if you haven't studied it before. You can refer back to it later when we start looking at the CSS rules. There are a few CSS classes that are particularly worthy of note in this markup:. One simple change that can be made without any custom CSS is to add vertical lines between the columns.

This just needs the setting columnLines to be set to true. The most important of these is x-panel-with-col-lineswhich has an accompanying rule in the default stylesheet to put a grey border down the right-hand side of each grid cell. The setting cls is common to all ExtJS components. It adds a CSS class to the main element for the component. Notice how the styling is applied to the cells rather than the rows.

This doesn't work because the cells have their own background-colorwhich completely hides the row. A little more CSS is needed to handle mouse-over and selection. One last thing to note here is the use of the! Generally this should be avoided but it can't be helped here because it's overriding a rule in the default ExtJS CSS that also uses this flag.Every FrameworkElement has dimensions, alignment, margin, and padding properties, which influence layout behavior.

The following guidance provides an overview of how to use these layout properties to make sure your app's UI is legible and easy to use in any context.

Proper sizing ensures all content is clear and legible. Height and Width specify the size of an element. You can set fixed values measured in effective pixelsor you can use Auto or proportional sizing for fluid behavior. ActualHeight and ActualWidth are read-only properties that provide the size of an element at runtime.

If fluid layouts grow or shrink, then the values change in a SizeChanged event. FontSize and other text properties control layout size for text elements. While text elements don't have explicitly declared dimensions, they do have calculated ActualWidth and ActualHeight.

Alignment makes your UI look neat, organized, and balanced and can also be used to establish visual hierarchy and relationships. HorizontalAlignment and VerticalAlignment specify how an element should be positioned within its parent container. Stretch is the default for both properties, and elements fill all of the space they're provided in the parent container. Real-number Height and Width cancel a Stretch value, which will instead act as a Center value.

Some controls, like Button, override the default Stretch value in their default style. HorizontalContentAlignment and VerticalContentAlignment specify how child elements are positioned within a container. Alignment can affect clipping within a layout panel. Text elements use the TextAlignment property. Generally, we recommend using left-alignment, the default value.

For more information about styling text, see Typography. Margin and padding properties keep UI from looking too cluttered or too sparse, and they can also make it easier to use certain inputs like pen and touch. Here's an illustration displaying margins and padding for a container and its content. Margin controls the amount of empty space around an element.

Margin does not add pixels to ActualHeight and ActualWidth and is not considered part of the element for hit testing and sourcing input events. Margin values can be uniform or distinct. Margins are additive. If two elements both specify a uniform margin of 10 pixels and are adjacent peers in any orientation, the distance between them is 20 pixels.

Ext.js - Drag and Drop

Negative margins are permitted. However, using a negative margin can often cause clipping, or overdraws of peers, so it's not a common technique to use negative margins. Margin values are constrained last, so be careful with margins because containers can clip or constrain elements. A Margin value could be the cause of an element not appearing to render; with a Margin applied, an element's dimension can be constrained to 0.

Padding controls the amount of space between the inner border of an element and its child content or elements. A positive Padding value decreases the content area of the element. Unlike Margin, Padding is not a property of FrameworkElement. There are several classes which each define their own Padding property:.

In each of these cases, elements also have a Margin property.

extjs padding

If both Margin and Padding are applied, they are additive: the apparent distance between an outer container and any inner content will be margin plus padding. Let's look at the effects of Margin and Padding on real controls. You don't have to set each property value individually on a control. It's typically more efficient to group property values into a Style resource and apply the Style to a control. This is especially true when you need to apply the same property values to many controls.Many classes have shortcut names used when creating instantiating a class with a configuration object.

The shortcut name is referred to as an alias or xtype if the class extends Ext. Framework classes or their members may be specified as private or protected. Publicprotectedand private are access descriptors used to convey how and when the class or class member should be used.

Public classes and class members are available for use by any other class or application code and may be relied upon as a stable and persistent within major product versions. Public classes and members may safely be extended via a subclass.

Protected class members are stable public members intended to be used by the owning class or its subclasses. Protected members may safely be extended via a subclass. Private classes and class members are used internally by the framework and are not intended to be used by application developers. Private classes and members may change or be omitted from the framework at any time without notice and should not be relied upon in application logic. Below is an example class member that we can disect to show the syntax of a class member the lookupComponent method as viewed from the Ext.

Button class in this case. This may be overridden in subclasses when special processing needs to be applied to child creation. The API documentation uses a number of flags to further commnicate the class member's function and intent. The label may be represented by a text label, an abbreviation, or an icon. Just below the class name on an API doc page is a row of buttons corresponding to the types of members owned by the current class. Each button shows a count of members by type this count is updated as filters are applied.

Clicking the button will navigate you to that member section. Hovering over the member-type button will reveal a popup menu of all members of that type for quick navigation. Getting and setter methods that correlate to a class config option will show up in the methods section as well as in the configs section of both the API doc and the member-type menus just beneath the config they work with. The getter and setter method documentation will be found in the config row for easy reference.Padding and margins are not interchangeable and have different purposes so must be used appropriately.

The padding is the space between the content and the border of a block. The margin, on the other hand, is the space outside the border of a block. Margin separates blocks from adjacent blocks while the padding separates the border from the content.

It separates the content of a block from its edge. The padding is transparent and includes the background image or background color of the element, as well. For example, to add a 25px padding around the content following code can be used. If necessary, different padding values can be separately specified for left, right, top, and bottom as well. The following piece of code specifies different padding values for each side. It separates a block from other blocks.

The margin is also transparent, but a great difference with padding is that the margin does not include background images or background colors applied to the element. The following piece of code applied a 25px margin around the div block. Different values can be specified for different sides of the block, as well.

The following piece of code applies different margin values for each side. The margin separates one block from the other. Padding is the space inside the border of a block that separates the border from the content. The margin is the spacing outside the border that separates a block from the adjacent blocks. Another difference is that padding includes the background image and background colors applied around the content while margin does not contain them.

The margins of adjacent blocks may sometimes overlap when the browser render the page but for padding such thing will not happen.

Coming from Engineering cum Human Resource Development background, has over 10 years experience in content developmet and management. Leave a Reply Cancel reply.Many classes have shortcut names used when creating instantiating a class with a configuration object. The shortcut name is referred to as an alias or xtype if the class extends Ext. Framework classes or their members may be specified as private or protected.

Publicprotectedand private are access descriptors used to convey how and when the class or class member should be used.

Public classes and class members are available for use by any other class or application code and may be relied upon as a stable and persistent within major product versions. Public classes and members may safely be extended via a subclass. Protected class members are stable public members intended to be used by the owning class or its subclasses. Protected members may safely be extended via a subclass. Private classes and class members are used internally by the framework and are not intended to be used by application developers.

Private classes and members may change or be omitted from the framework at any time without notice and should not be relied upon in application logic. Below is an example class member that we can disect to show the syntax of a class member the lookupComponent method as viewed from the Ext. Button class in this case. This may be overridden in subclasses when special processing needs to be applied to child creation. The API documentation uses a number of flags to further commnicate the class member's function and intent.

The label may be represented by a text label, an abbreviation, or an icon. Just below the class name on an API doc page is a row of buttons corresponding to the types of members owned by the current class. Each button shows a count of members by type this count is updated as filters are applied. Clicking the button will navigate you to that member section. Hovering over the member-type button will reveal a popup menu of all members of that type for quick navigation.

Getting and setter methods that correlate to a class config option will show up in the methods section as well as in the configs section of both the API doc and the member-type menus just beneath the config they work with. The getter and setter method documentation will be found in the config row for easy reference. Your page history is kept in localstorage and displayed using the available real estate just below the top title bar.

You can expand what is displayed by clicking on the button on the right-hand side of the history bar and choosing the "All" radio option. Within the history config menu you will also see a listing of your recent page visits. Clicking on the button will clear the history bar as well as the history kept in local storage. If "All" is selected in the history config menu the checkbox option for "Show product details in the history bar" will be enabled.

Both API docs and guides can be searched for using the search field at the top of the page. On API doc pages there is also a filter input field that filters the member rows using the filter string. In addition to filtering by string you can filter the class members by access level, inheritance, and read only.

This is done using the checkboxes at the top of the page. The checkbox at the bottom of the API class navigation tree filters the class list to include or exclude private classes. Each API doc page with the exception of Javascript primitives pages has a menu view of metadata relating to that class. This metadata view will have one or more of the following:. Runnable examples Fiddles are expanded on a page by default. You can collapse and expand example code blocks individually using the arrow on the top-left of the code block.Many classes have shortcut names used when creating instantiating a class with a configuration object.

The shortcut name is referred to as an alias or xtype if the class extends Ext. Framework classes or their members may be specified as private or protected. Publicprotectedand private are access descriptors used to convey how and when the class or class member should be used.

Public classes and class members are available for use by any other class or application code and may be relied upon as a stable and persistent within major product versions. Public classes and members may safely be extended via a subclass.

Protected class members are stable public members intended to be used by the owning class or its subclasses. Protected members may safely be extended via a subclass. Private classes and class members are used internally by the framework and are not intended to be used by application developers. Private classes and members may change or be omitted from the framework at any time without notice and should not be relied upon in application logic.

Below is an example class member that we can disect to show the syntax of a class member the lookupComponent method as viewed from the Ext. Button class in this case. This may be overridden in subclasses when special processing needs to be applied to child creation.

Styling ExtJS Grid Cells

The API documentation uses a number of flags to further commnicate the class member's function and intent. The label may be represented by a text label, an abbreviation, or an icon. Just below the class name on an API doc page is a row of buttons corresponding to the types of members owned by the current class.

Each button shows a count of members by type this count is updated as filters are applied. Clicking the button will navigate you to that member section. Hovering over the member-type button will reveal a popup menu of all members of that type for quick navigation. Getting and setter methods that correlate to a class config option will show up in the methods section as well as in the configs section of both the API doc and the member-type menus just beneath the config they work with.

The getter and setter method documentation will be found in the config row for easy reference. Your page history is kept in localstorage and displayed using the available real estate just below the top title bar. You can expand what is displayed by clicking on the button on the right-hand side of the history bar and choosing the "All" radio option.

Within the history config menu you will also see a listing of your recent page visits. Clicking on the button will clear the history bar as well as the history kept in local storage.

If "All" is selected in the history config menu the checkbox option for "Show product details in the history bar" will be enabled.

Ext.js - Border Layout

Both API docs and guides can be searched for using the search field at the top of the page. On API doc pages there is also a filter input field that filters the member rows using the filter string.

In addition to filtering by string you can filter the class members by access level, inheritance, and read only. This is done using the checkboxes at the top of the page. The checkbox at the bottom of the API class navigation tree filters the class list to include or exclude private classes. Each API doc page with the exception of Javascript primitives pages has a menu view of metadata relating to that class.

extjs padding

This metadata view will have one or more of the following:. Runnable examples Fiddles are expanded on a page by default. You can collapse and expand example code blocks individually using the arrow on the top-left of the code block. You can also toggle the collapse state of all examples using the toggle button on the top-right of the page. The toggle-all state will be remembered between page loads.


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