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Hey, welcome back.

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In this video, we're going to add a table to this window.

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Previously we added the menu bar.

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Now we add the table.

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Let's do that.

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So the table is going to be part of the main window.

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That means the code should be added inside the init method.

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So let's go down here and create a table which is equal to Q table widget.

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A new class that we need to import from.

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Q Two widgets.

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So somewhere in here.

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So Q Table widget has to be instantiated.

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So add those parentheses there and then we need to add columns and we need to add data to that table.

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Now, for adding data, we're going to have a separate.

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Load data method somewhere in here.

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And this load data methods will have to refer to that table variable.

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Right.

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But since this is a local variable, we cannot refer to that as it is.

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So we need to work on an attribute instead of an instance variable.

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So self that table.

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And then here we're going to do self that table.

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But let's leave the load data method as it is now.

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I just wanted to mention it so that we can use self before we write the other pieces of code.

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So now we can refer to self that table and to use the set column count method.

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This method gets an argument that will be for in our case because we have four columns.

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So now we are starting to specify the properties of this table.

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So one, two, three, four.

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That's the columns for columns.

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Once we have set the columns, then we do self that table.

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So we always refer to that table that set horizontal header labels.

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And this is going to come as a tuple.

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So parentheses inside parentheses and there goes ide name.

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So the column names that we are planning to have ID name course mobile.

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And mobile so the mobile number of the student.

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Right.

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So we have created the columns.

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Now, if you run this code, you're not going to see any changes to your interface.

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That's because you need you to to also add a very crucial piece of code and that is self dot set central

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widget.

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So note that self here is referring to the main window instance, right?

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So we use the set central widget methods of this window and then this method gets as an argument the

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central widget, which is table in this case.

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So we're not using a layout.

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A layout is used when you use the Q widget and when you have multiple widgets in your interface.

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But with Q Main window, we have a different structure.

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We have a menu bar, we're going to have a toolbar.

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And so we need to specify a central widget when we use a Q main window.

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That's what we're doing here.

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We are specifying the table as the central widget.

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So now if I run this, you're going to see those four columns in here.

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There are no data, of course, because we need to add those data and we need to get them from an SQL

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database.

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And that is something we're going to do in the next video.

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So in the next video, we're going to add the data to the table.

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I'll see you there.