防止在自动生成的 GridView 列中进行 HTML 编码 [英] Prevent HTML encoding in auto-generated GridView columns

问题描述

我有一个 GridView 绑定到我构造的 DataTable.表格中的大多数列都包含超链接链接的原始 HTML，我希望该 HTML 在浏览器中呈现为链接，但 GridView 会自动对 HTML 进行编码，因此它呈现为标记.

I have a GridView bound to a DataTable that I construct. Most columns in the table contain the raw HTML for a hypelinklink, and I would like that HTML to render as a link in the browser, but the GridView is automatically encoding the HTML, so it renders as markup.

如何在不显式添加超链接或任何其他列的情况下避免这种情况?

How can I avoid this without explicitly adding HyperLink, or any other, columns?

推荐答案

只需设置 BoundColumn.HtmlEncode 属性为假:

<asp:BoundField DataField="HtmlLink" HtmlEncode="false"/>

恐怕没有简单的方法可以使用 AutoGenerateColumns= true.但是，我可以想到两种可能解决您面临的问题的解决方法:

I am afraid that there is no easy way to disable HTML encoding of the contents in a GridView with AutoGenerateColumns= true. However, I can think of two workarounds that might solve the problem you are facing:

选项 1: 继承 GridView 类，覆盖 Render 方法，循环遍历所有单元格，解码它们的内容，然后执行基础方法:

Option 1: Inherit the GridView class, override the Render method, loop through all cells, decode their contents, before executing the base method:

for (int i = 0; i < Rows.Count; i++) 
{
    for (int j = 0; j < Rows[i].Cells.Count; j++) 
    {
        string encoded = Rows[i].Cells[j].Text;
        Rows[i].Cells[j].Text = Context.Server.HtmlDecode(encoded);
    }
}

选项 2: 在继承自 GridView 的类中或在使用它的 Page 或 Control 中，使您自己检查 DataTable 并为每列创建一个显式的 BoundColumn:

Option 2: In a class inheriting from GridView or in the Page or Control using it, make your own inspection of the DataTable and create an explicit BoundColumn for each column:

foreach (DataColumn column in dataTable.Columns)
{
    GridViewColumn boundColumn = new BoundColumn
        {
            DataSource = column.ColumnName,
            HeaderText = column.ColumnName,
            HtmlEncode = false
        };
    gridView.Columns.Add(boundColumn);
}

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