组合在一个DataTextField两个字段。这可能吗？ [英] Combining two fields in a DataTextField. Is this possible?

问题描述

我有一个数据集而我绑定到一个列表框。不过，我想结合两个领域，以弥补DataTextField。这是可能的，还是我经历的数据行有循环？

I have a dataset which I am binding to a listbox. However, I want to combine two of the fields to make up the DataTextField. Is this possible, or am I going to have to loop through the Data Rows?

lstAddressDropdown.DataSource = dsAddress;
lstAddressDropdown.DataTextField = "StreetAddress" + "Place";
lstAddressDropdown.DataBind();
lstAddressDropdown.Items.Insert(0, new ListItem("Please select"));

值得注意的是，数据来源于Web服务后面，所以我不能改变任何存储过程来列有结合起来。

It's worth noting that the dataset comes back from a web service so I can't change any stored procedure to combine the columns there.

推荐答案

您可以将附加列添加到这是一个计算列数据表，并用它作为你的datatextfield（的文档：多场数据绑定）

You can add an additional column to the datatable that is a computed column and use it as your datatextfield (docs: Multi-field Data Binding).

因此​​，对于你上面的例子，你可以做这样的事情：

So for your example above you could do something like this:

dsAddress.Tables[0].Columns.Add("StreetAndPlace",typeof(string),"StreetAddress + Place");
lstAddressDropdown.DataSource = dsAddress;
lstAddressDropdown.DataTextField = "StreetAndPlace";
lstAddressDropdown.DataBind();
lstAddressDropdown.Items.Insert(0, new ListItem("Please select"));

要添加的StreetAddress与地方之间的空间的StreetAddress +''+地方

To add a space between the StreetAddress and Place replace the expression string shown above with "StreetAddress + ' ' + Place"

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