Angular get child width

It's just another example of how the Angular template syntax is such a joy to work with. Little things like CSS unit-selection become friction-free tasks.

No more messing around with string interpolation or string concatenation - just select the unit of measurement and apply the length value. This is barely worth sharing, since this functionality is all in the Angular documentation.

angular get child width

But, the Angular template syntax makes me so happy, I can't help but want to be a share-bear. When defining an in-line style, the unit of measurement can be provided as part of the attribute name. Here, we're using the "px" - pixel - unit:. Doesn't that just make you smile? To see this in action, I've created a small demo in which I use a variety of CSS units to render the same numeric value:.

As you can see, each P tag is rendering the same "value" component property. But, each P tag uses a different unit of measurement for its in-line style. And, when we run this code, you can see how each unit affects the rendering:. When you first see the Angular template syntax, it's a little jaring. But, once you start using it, the Angular template syntax just brings joy. You know what, it may be in the documentation, but I hadn't seen it used like that before.

That is pretty cool that you can straight up use. There's a lot of little things I feel like they got right the second time around with Angular. And those "little things" make a difference. And, as much documentation as there is, little things are not always well articulated.

Instead, it just says you can use CSS units. John, Agreed! Much to like. Stephane Mar 1, at PM 1 Comments. I lost 30 min. You save my time loss.

angular get child width

I really thank you with heart! Chris, Woot woot, glad I could help get some of your time back. Rock on! Oh my chickens, this post is old! Hit me up on Twitter if you want to discuss it further.The content width of a div can dynamically get using clientWidth and scrollWidth properties depending upon the user requirement.

If a user wants to know the space required by actual displayed content including the space taken by padding but not including the scrollbars, margins or borders, then the user can use any of the following procedures that will return the width of the entire content of an element. Example 1: Content Width of div using ClientWidth property will return the width of the entire content of an element. Example 2: Content Width of div using scrollWidth property will return the width of the entire content of an element.

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Using Element. ClientWidth property Using Element. Calculate content width of a div on GeeksforGeek. GeeksforGeeks is a computer science portal which. There are. How to create an image element dynamically using JavaScript? How to dynamically change the title of web page using JavaScript? How to merge properties of two JavaScript objects dynamically? How to change style attribute of an element dynamically using JavaScript?

Check out this Author's contributed articles. Load Comments.GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Already on GitHub? Sign in to your account. Hi, I have started using the md-table for my project, and I want fixed column width. Currently all columns width are divided into equal size. Could any one please help me in this. Closing since the issue does not represent a bug or feature request. The best way to get help using Material is to ask the community through other avenues like Gitter, StackOverflow, Google Groups, etc.

For those looking for an answer to the same question and fall here, material2 uses Angular Flex-Layout flexbox. I got the very easy solution for this: setting different width for column in style sheet by overriding the both cell and header cell. Example: setting custom width for 1st and 5th column Vinutha-BK solution's works.

Is there a way to avoid duplication and apply flex settings to both the header and the cells? AKlaus first: my initial comment was partially right partially wrong.

Material2 uses flexbox but does not import Angular Flex-Layout. If you are using Angular Flex-Layout, like me, that's a way to handle that situation. To answer your question, I don't change widths often, so for me adding fxFlex in two places didn't feel inconvenient but since headers and cells are different directives, I can't think a solution where you define once and it effects all. Instead of using fxFlex on the header and the column, we utilise a feature, where mat-table auto generate CSS classes with column names e.

Hence, we apply "width" in the CSS, like. Immediate tangible benefit out of it was simpler or more straightforward debugging of the UI in the browser, where the devs need to tweak styles a bit. This issue has been automatically locked due to inactivity. Please file a new issue if you are encountering a similar or related problem.

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New issue. Jump to bottom. Copy link Quote reply.After installing angular flex layout, we will create a component called angular-flex-layout in our project. To understand the behaviour of flexbox items we will background color to to the children element. Elements are positioned across main axis horizontal incase of row layout and cross axis vertical incase of row layout. In angular flex layout row alignment by default elements are positioned at start of the flex container and expanded streched vertically as shown above.

See the below flex layout row demo to understand how to align children elements inside the flex box container. But in mobile devices we cannot show all the elements in row layout as the width of the mobile device is small. In this case we need to change flexbox elements layout from row to column incase of mobile devices.

So basically we are giving instructions to flex layout engine saying if the device width is extra small follow the column layout otherwise default layout i.

Tutorial Introduction Basics. Angular flex layout basics Arunkumar Gudelli. And fxLayout directive case sensitive. The allowed values of fxLayout are row,coumn,row-reverse,column-reverse. We can set the alignment of both main-axis and cross axis as shown below.

We will understand each one of them using simple examples. Angular Flex layout Examples Angular Flex layout has four differenct types of layout options as listed below row column row-reverse column-reverse Angular Flex Layout row example After installing angular flex layout, we will create a component called angular-flex-layout in our project.

Here I have used material card as flexbox items. Elements are positioned across main axis horizontal incase of row layout and cross axis vertical incase of row layout In angular flex layout row alignment by default elements are positioned at start of the flex container and expanded streched vertically as shown above.

We can give different kinds of values to fxLayoutAlign attribute as shown below. Main Axis values start center end space-around space-between space-evenly Cross Axis values start center end stretch See the below flex layout row demo to understand how to align children elements inside the flex box container. Angular Flex Layout column example Now we will go through the column layout example.

We have to extend the static flex layout API by using these breakpoint aliases.The Angular ViewChild decorator is one of the first decorators that you will run into while learning Angular, as it's also one of the most commonly used decorators. This decorator has a lot of features: some of them might not be very well known but they are extremely useful. In this post, we are going to quickly cover all the features that we have available in this decorator while giving practical examples for each use case along the way.

We are going to base all our examples in this initial template. Many times we can coordinate these multiple components and HTML elements directly in the template by using template references like primaryInput or primaryColorSamplewithout using the AppComponent class. But this is not always the case!

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Sometimes, the AppComponent might need references to the multiple elements that it contains inside its template, in order to mediate their interaction. If that's the case, then we can obtain references to those template elements and have them injected into the AppComponent class by querying the template: that's what ViewChild is for. The value of this injected member variable is not immediately available at component construction time!

Angular will fill in this property automatically, but only later in the component lifecycle, after the view initialization is completed. If we want to write component initialization code that uses the references injected by ViewChild, we need to do it inside the AfterViewInit lifecycle hook.

As we can see, Angular has filled automatically our member variable primaryColorSample with a reference to a component! If we want to make sure that the references injected by ViewChild are present, we should always write our initialization code using ngAfterViewInit. Depending on the situation, the template references might already be present on ngOnInitbut we shouldn't count on it.

With ViewChild, we can inject any component or directive or HTML element present on the template of a given component onto the component itself. But how far can we query components down the component tree? Let's try to use ViewChild to query a component that is deeper in the component tree.

This means that queries done using ViewChild can only see elements inside the template of the component itself. It's important to realize that ViewChild cannot be used to inject:. To summarize: the ViewChild decorator is a template querying mechanism that is local to the component. With this, we have covered the most common use case of ViewChild, but there is still a lot more to it: let's see some more use cases!

Instead of injecting a direct child component, we might want to interact directly with a plain HTML element of the template, such as for example the h2 title tag inside AppComponent. In order to do that, we need to first assign a template reference to the HTML tag that we want to inject:. As we can see, we have assigned the title template reference to the h2 tag. We can now have the h2 element injected directly into our component class in the following way:.

As we can see, we are passing the string 'title' to the ViewChild decorator, which corresponds to the name of the template reference applied to the h2 tag. Because h2 is a plain HTML element and not an Angular component, what we get injected this time is a wrapped reference to the native DOM element of the h2 tag:. ElementRef simply wraps the native DOM element, and we can retrieve it by accessing the nativeElement property.

Using the nativeElement property, we can now apply any native DOM operation to the h2 title tag, such as for example addEventListener.

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And this is how we can use ViewChild to interact with plain HTML elements in the template, but this leads us to the question:. Let's give an example for this new use case. If we run this program, we might be surprised to find out that this time we are not getting back the native DOM element:. Instead, we are getting back again the ColorSampleComponent instance!By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. Here, I want to get width of divToMeasure and then based on this, need to do further operations.

Angular flex layout basics

Please, help me to fix this code and better approach or suggestion are always welcomed. Learn more. How to get width of a parent div and based on do further operations in angular2 Ask Question. Asked 2 years, 5 months ago. Active 2 years, 5 months ago. Viewed 7k times. Manzer Manzer 2, 13 13 silver badges 35 35 bronze badges.

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Active Oldest Votes. I believe this is what you are looking for. Thanks, this. Can you please suggest any better way to perform above task.

Angular @ViewChild: In-Depth Explanation (All Features Covered)

What above task? Get the div's width? If so, I believe this is the best approach. Ahmadmnzr Also, this. If an element doesn't have a width applied to it via a style tag or css, it will return empty and not the actual width of the element. You can see this in your dev tools on this page: document. I have applied like above [style. Sign up or log in Sign up using Google.In this post, we are going to dive into some of the more advanced features of Angular Core!

The ng-template directive and the related ngTemplateOutlet directive are very powerful Angular features that support a wide variety of advanced use cases. These directives are frequently used with ng-container, and because these directives are designed to be used together, it will help if we learn them all in one go, as we will have more context around each directive. Let's then see some of the more advanced use cases that these directives enable. Note: All the code for this post can be found in this Github repository.

Like the name indicates, the ng-template directive represents an Angular template: this means that the content of this tag will contain part of a template, that can be then be composed together with other templates in order to form the final component template. Angular is already using ng-template under the hood in many of the structural directives that we use all the time: ngIfngFor and ngSwitch.

Let's get started learning ng-template with an example.

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Here we are defining two tab buttons of a tab component more on this later :. If you try the example above, you might be surprised to find out that this example does not render anything to the screen! This is normal and it's the expected behavior.

This is because with the ng-template tag we are simply defining a template, but we are not using it yet. Let's then find an example where we can render an output, using some of the most commonly used Angular directives.

angular get child width

As we can see, the else clause is pointing to a template, which has the name loading. The name was assigned to it via a template reference, using the loading syntax. But besides that else template, the use of ngIf also creates a second implicit ng-template! Let's have a look at what is happening under the hood:. Let's break down what happened during the desugaring:. And this is just one example, of a particular case with ngIf.

But with ngFor and ngSwitch a similar process also occurs. These directives are all very commonly used, so this means these templates are present everywhere in Angular, either implicitly or explicitly. Let's see what happens if for example we try to use ngIf and ngFor in the same element:. This means that its not possible to apply two structural directives to the same element. In order to do so, we would have to do something similar to this:.

In this example, we have moved the ngIf directive to an outer wrapping div, but in order for this to work we have to create that extra div element.