排序一个DropDownList？ - C＃，ASP.NET [英] Sorting a DropDownList? - C#, ASP.NET

问题描述

我很好奇，以最佳路线（更多望着简单，没有速度和效率）进行排序在C＃/ ASP.NET一个DropDownList - 我已经看了一些建议，但它们不与点击好我的。

I'm curious as to the best route (more looking towards simplicity, not speed or efficiency) to sort a DropDownList in C#/ASP.NET - I've looked at a few recommendations but they aren't clicking well with me.

编辑：伙计们，我没有控制数据如何进入DropDownList的 - 我不能修改SQL

Folks, I do not have control over how the data comes into the DropDownList - I cannot modify the SQL.

推荐答案

如果你得到的数据的数据表，您可以创建一个DataView过这个，然后绑定下拉列表来表示。您code看起来像...

If you get a DataTable with the data, you can create a DataView off of this and then bind the drop down list to that. Your code would look something like...

DataView dvOptions = new DataView(DataTableWithOptions);
dvOptions.Sort = "Description";

ddlOptions.DataSource = dvOptions;
ddlOptions.DataTextField = "Description";
ddlOptions.DataValueField = "Id";
ddlOptions.DataBind();

您文本字段和值字段选择映射到数据表您收到相应的columnns。

Your text field and value field options are mapped to the appropriate columnns in the data table you are receiving.

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