We add columns to the tree by instantiating the TreeColumn class (lines 23 and 28).
我们通过实例化treecolumn类(第23和28行)来向树中添加列。
The Columns view allows you to add columns and specify the properties of the columns.
允许添加列并指定列属性。
This way, if you add columns to the table later that have different information, you can print them.
使用这种方法，如果把列添加到稍后含有不同信息的表中，则可以输出这些列。
For example, you can browse your database for tables that need to be modified or dropped, perform extended alters, and add columns to an existing table.
例如，您可能需要浏览数据库，修改或删除表，执行扩展修改，在现有的表中添加列。
Therefore, if you add columns to the query output, the query and View Designer automatically adds them to the GROUP BY clause of the statement in the SQL pane.
因此，如果将列添加到查询输出中，则查询和视图设计器会自动将其添加到“SQL”窗格中语句的GROUPby子句中。
Columns are usually intended in architecture to add grandeur and status.
柱子被用于建筑通常是为了增添宏伟和高贵。
You can add more input or output columns to this data set later.
稍后您要向该数据集添加更多的输入或者输出列。
You can add a column directly or delete the fields from existing columns to make room.
您可以直接添加一个列，或者从已存在的列中删除掉字段以腾出空间。
Then we loop over columns (first loop) and add the rest of the header cells to this row and add the row to the provider after the looping is done.
然后，我们将遍历列（第一次循环）并将其余的标题栏单元格添加到该行，并在遍历结束之后将该行添加到提供程序。
For example, if your report is displaying product sales and you want a chart representation to the right of your table data, you would add a grid element with one row and two columns.
例如，如果你的报表显示产品销量情况，而你想在表格的右侧增加一个图表，那么你就可以增加一个一行两列的网格元素来完成这个任务。
This also enables you to change the column names to more descriptive texts and add additional columns.
这也使得您可以将列名改成更具描述性的文本，还可以添加更多的列。
Add to that several enormous columns that blocked my view of some of the participants. And, of course those participants couldn't see me either!
再加上挡在我眼前的这几根大柱子让我无法看到观众，当然他们也是看不到我的。
Thus, we come to our first one-liner, intended to add two columns in the text input to the script.
因此，我们来查看第一个一行程序，它旨在将文本输入中的两列添加到脚本中。
You can add and drop indexes; alter tables by dropping, renaming, or adding columns; and even drop down into SQL as necessary.
可以添加和删除索引；通过删除、改名或添加列来修改表；甚至在必要的时候借助于SQL。
If an application is not performing adequately, it is generally more desirable to add more columns to an existing index, or add new indexes to a table as your first options.
如果一个应用程序执行时的性能不合格，较为可取的做法通常是添加更多的列到现有的索引中，或者为一个表添加新的索引，这种做法是首选。
To add additional sort columns, keep the control key pressed while choosing additional columns.
若要添加附加的排序列，就要在选择附加列时，一直按住控制键。
You could also add awareness to views by enabling columns to show online status.
也可以通过启用显示在线状态的列为视图增加感知功能。
Because this restriction is removed, even if the database is not created in UTF-8, a user can alter a table to add an XML column or create a new table with XML columns.
由于去掉了这个限制，即使数据库不是用utf - 8格式创建的，用户也可以更改一个表以添加xml列，或者创建一个包含xml列的新表。
Add the SQL expressions generated for each of these attributes as columns in the SELECT list.
将这些属性的SQL表达式添加到SELECT列表中作为列。
Then add the following columns.
接下来添加以下几列。
We will need to add new columns, and perhaps even new tables, to store the new data elements.
我们将需要添加新列，甚至是新表，来存储新的数据元素。
If only a single type of lock can be associated with the given table, then it may make sense to add extra columns to the original table to control the locking.
如果只有单一类型的锁关联到给定表，那么可以添加额外的列到原始表中来控制锁定。
Let me change it to suppose… if I add those first two columns, that would give me a [1, 1, -3].
假设我将它改成…如果我将前两列相加，我会得到一个向量 [1， 1，-3]。
Add a Data column Modifier builder to hide all columns except Document_title and Document_description created by the Data Page added in the last step.
添加一个DataColumnModifier构建块，以隐藏除了上一步骤中添加的DataPage所创建的Document _ title和Document_description以外的所有其他列。
By convention, yui-main displays on the left, unless you add a class style to the outermost div to change the order of the two columns.
根据习惯，yui-main一般显示在左侧，除非您向最外面的div添加了一个类样式以更改两个列的顺序。
When the view opens in Domino Designer, delete all columns except Date and Topic, and add a categorized column at the far left, as shown in figure 9.
当视图在DominoDesigner 中打开后，删除Date和Topic 之外的全部列，并在最左侧添加一个用于分类的列，如图 9 所示。
In order to do this, you first have to explicitly add all columns to the AdapterGrid.
为了实现这一点，首先要显式地将所有的列添加到AdapterGrid。
In the following example, you make it easier to add new columns to a Tomahawk data table.
在接下来的例子中，向Tomahawk数据表添加新列，会变得更加容易。
On the computed Columns TAB, add a new computed column with the type String and a name such as Severity name.
对于Computedcolumns项，添加一个String类型且名为SeverityName的新计算列。
Now, instead of adding a DataGrid, which will again be too wide if you add all columns to it, you should instead add individual ASP.NET TextBox controls to bind to the attributes of the Employee.
现在，作为替代，将添加一个DataGrid，如果将所有列都添加到其中，那么它会再次变得非常宽，此时应该改为添加个别a SP.NETTextBox控件，以绑定到Employee的属性。
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