Question

我在 SQL ：

中有一个表格

WarehouseAddress(addressID, address1, address2, etc.)

如何将我的下拉列表中的datavaluefield显示为以逗号分隔的address1 + address2的组合？

这是我当前的 aspx.cs 代码：

//reading the data from SQL
    deliveryAddressDdl.DataSource = warehouseAddressDB.getShippingAddresses(uid, wid);

//setting the data to be displayed in the dropdownlist
    deliveryAddressDdl.DataTextField = "address1";

//setting the value inside the dropdownlist when selected
    deliveryAddressDdl.DataValueField = "addressID";
    deliveryAddressDdl.DataBind();

我尝试过使用：

deliveryAddressDdl.DataTextField = "address1" + ", " + "address2";

但它只是在sql中搜索值"address1, address2"，这在我的WarehouseAddress表中根本不存在。

非常感谢您提供任何帮助！

Answer 1

您可以将其与SQL语句结合使用，并为其指定列名称地址。请参阅下面的代码重写代码示例。

SQL查询：

SELECT addressID, address1 + ' , ' + address2 AS Address FROM WarehouseAddress

DataTextField的源代码更改：

 //reading the data from SQL
 deliveryAddressDdl.DataSource = warehouseAddressDB.getShippingAddresses(uid, wid);

//setting the data to be displayed in the dropdownlist
deliveryAddressDdl.DataTextField = "Address";

//setting the value inside the dropdownlist when selected
deliveryAddressDdl.DataValueField = "addressID";
deliveryAddressDdl.DataBind();

Answer 2

我之前问过的问题的答案是：

<强> aspx.cs：

//reading the data from SQL
    deliveryAddressDdl.DataSource = warehouseAddressDB.getShippingAddresses(uid, wid);

//setting the data to be displayed in the dropdownlist
    deliveryAddressDdl.DataTextField = "combinedAddress";

//setting the value inside the dropdownlist when selected
    deliveryAddressDdl.DataValueField = "addressID";
    deliveryAddressDdl.DataBind();

<强> SQL：

select *, (address1 + ',' + SPACE(1) + address2) as combinedAddress from WarehouseAddress

如何显示下拉列表datavaluefield，结合了两个不同的属性？

2 个答案: