组合框可以在其textbox部分提供多于一列吗？ [英] Can a combobox present more then one column on its textbox part?

问题描述

我在我的组合框中有一个两列列表，当我使用下拉列表选择其中的一个项目时，它存储（我在组合框的textbox部分看到的）只有我选择的值根据绑定列在右侧或左侧列）

I have a two column list in my combobox and when I choose one of the items in it using the drop down list, it stores (what I see in the textbox part of the combobox) only the value I selected (wether it's the one on the right or left column according to boundcolumn)

我的问题是：是否有一种方法来存储（或呈现，即我的目标）在文本框部分

My question is: Is there a way to store(or present-that is my goal) in the textbox part of the combobox, both of the columns of one row selected?

例如：[column1] Daniel [column2] Smith。在文本框中我想要：丹尼尔·史密斯（不只是丹尼尔，或史密斯他们自己）

For example: [column1] Daniel [column2] Smith. And in the textbox I want: Daniel Smith (and not just Daniel, or Smith on they're own)

推荐答案

describe在理论上是可能的，但有限制。

What you describe is theoretically possible, but with restrictions.

即使您没有要求，这里是我的想法：

正如这里所述，您可以更改ComboBox的 text ，而不更改其值。这允许您存储基础值，同时将两个列显示在一个列中。

Like described here you can change your ComboBox's text without changing its value. This allows you to 'store' the underlying value while displaying both columns in one.

在 SelectedIndexChanged Event 并更改文本属性，如下所示： / p>

Listen on the SelectedIndexChanged Event and change the text property as follows:

Sub ComboBox1_SelectedIndexChanged()
    ComboBox1.Text = ComboBox1.Column(0) & "-" & ComboBox1.Column(1)
End Sub

例如。）现在无法测试，但在.Net中，您可以使用 CType 显式转换 sender

(This is only a basic example.) Can't test it right now, but in .Net you can use CType to explicitly convert the sender argument to a ComboBox variable and access it this way.

Boundcolumn 属性不能更改为多个值。你可以尝试使用 VbTab 作为文本字段中的分隔符，但我不知道它将如何显示。

The Boundcolumn property can't be changed to multiple values. You can try to use VbTab as a delimiter in the text field but i'm not sure how it will appear.

编辑：

不要忘记默认值。我认为您的文字字段应该显示之前用户第一次点击列表。

Don't forget the default values. I think your Text field should show both columns before the user clicked on the list the first time, too.

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