Question

ddlCats.DataSource = listOfCats;
ddlCats.DataBind();

如果某个项目包含say，＆amp;，它将在ddl中显示为&

我怎么能阻止这个？我正在使用asp.net

Answer 1

我在这里有同样的问题，这里是感兴趣的人的代码（不是修复，而是问题的一个例子）

    <%@ Page Language="C#" AutoEventWireup="true" CodeFile="HtmlEncodeDropDownList.aspx.cs" Inherits="ForumExampleCode_HtmlEncodeDropDownList" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
    <head runat="server">
        <title>HTML Encode Drop Down List Example (english, c# only)</title>
    </head>
    <body>
        <form id="form1" runat="server">
            <div>
                <h1>HTML Encode Drop Down List Example (english, c# only)</h1>
                <asp:dropdownlist id="ddlCountry" runat="server" />
                <div>
                    This is how it should look in the drop down list:<br />
                    c&#244;te d&#39;ivoire<br />
                    s&#227;o tom&#233; and pr&#237;ncipe
                </div>
            </div>
        </form>
    </body>
</html>

后面的代码就在这里

using System;

使用System.Collections.Generic; 使用System.Data; 使用System.Linq; 使用System.Web; 使用System.Web.UI; 使用System.Web.UI.WebControls;

public partial class ForumExampleCode_HtmlEncodeDropDownList：System.Web.UI.Page { protected void Page_Load（object sender，EventArgs e） { #region region 1：创建数据表并填充值

    //note: declare objects
    DataTable countryTable = new DataTable();

    //note: add data columns to datatabl
    DataColumn newColumn1 = new DataColumn();
    newColumn1.AllowDBNull = false;
    newColumn1.Caption = "three letter ISO country abbreviation";
    newColumn1.ColumnName = "iso";
    newColumn1.DataType = System.Type.GetType("System.String");
    countryTable.Columns.Add(newColumn1);

    //note: add data columns to datatable
    DataColumn newColumn2 = new DataColumn();
    newColumn2.AllowDBNull = false;
    newColumn2.Caption = "country name";
    newColumn2.ColumnName = "countryName";
    newColumn2.DataType = System.Type.GetType("System.String");
    countryTable.Columns.Add(newColumn2);

    //note: rename table
    countryTable.TableName = "CountryList";

    //note: add row
    DataRow newRow1 = countryTable.NewRow();
    newRow1["iso"] = "abc";
    newRow1["countryName"] = "c&#244;te d&#39;ivoire";
    countryTable.Rows.Add(newRow1);

    //note: add row
    DataRow newRow2 = countryTable.NewRow();
    newRow2 = countryTable.NewRow();
    newRow2["iso"] = "xyz";
    newRow2["countryName"] = "s&#227;o tom&#233; and pr&#237;ncipe";
    countryTable.Rows.Add(newRow2);

    #endregion

    #region region 2: bind datatable to drop down box

    ddlCountry.DataSource = countryTable;
    ddlCountry.DataTextField = "countryName";
    ddlCountry.DataValueField = "iso";
    ddlCountry.DataBind();

    #endregion
}

}

如何从html编码中停止数据绑定下拉列表？

1 个答案: