如何通过在asp.net的下拉列表中选择公司名称来存储公司ID [英] how to store company id by selecting company name in dropdownlist in asp.net

问题描述

如何通过在asp.net的下拉列表中选择公司名称来存储公司ID





通过示例给出明确的解释。 />














感谢你先生

how to store company id by selecting company name in dropdownlist in asp.net


give clear explanation with example.







thanking u sir

推荐答案

在aspx页面添加带有datatextfield和datavaluefield属性的下拉列表

Add dropdownlist with datatextfield and datavaluefield property in aspx page

<asp:DropDownList runat="server" ID="ddlCity" DataTextField="CityName" DataValueField="CityID"></asp:DropDownList>

在页面加载中绑定下拉列表！IsPostBack

Bind dropdownlist in page load inside !IsPostBack

if (!IsPostBack)
            {
                //Bind Datatable to dropdownlist datasource property (probably in page_load inside !IsPostBack)
                //e.g datatable contain column CityID , CityName
                ddlCity.DataSource = GetCities();
                ddlCity.DataBind();

            }

使用以下代码访问ID和名称字段

access ID and name field using below code

//get selected city ID
           string cityName = ddlCity.SelectedItem.Text;
           //get selected city ID
           int cityID = Convert.ToInt32( ddlCity.SelectedItem.Value);

如果您的数据来自数据表，这将满足您的需求< br $> b $ b

http://www.devmanuals.com /tutorials/ms/aspdotnet/dropdownlist.html [ ^ ]





http://www.c-sharpcorner.com/UploadFile/rohatash/binding-dropdownlist-with-database-and-display -data-in-gridv / [ ^ ]

This will serve your purpose if your data comes from datatable

http://www.devmanuals.com/tutorials/ms/aspdotnet/dropdownlist.html[^]


http://www.c-sharpcorner.com/UploadFile/rohatash/binding-dropdownlist-with-database-and-display-data-in-gridv/[^]

Hi Shanavaz，

填写下拉列表时设置其DataTextField和

DataValueField。在DataTextField绑定公司名称，在DataValueField绑定公司ID并保存时保存其DataValueField。

Hi Shanavaz,
When you fill your dropdownlist set its DataTextField and
DataValueField. In DataTextField bind Company Name, in DataValueField bind Company Id and while saving save its DataValueField.

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