Question

我已经对这件事感到非常难过了好几天了。它已经到了我无法理性思考它的地步。任何你愿意传授的任何指导和智慧都将非常感激。我的问题是我创建了一个gridview，它从数据库中为每一行加载一个字体名称（由字体设计者给出的名称）和另一个名为FontFamily的列（我需要用于css）。我可以很容易地将db中的值加载到gridview中，但我无法使用＆＃39; FontFamily＆＃39; value作为我的fontfamily css值。我已经搜索过互联网，到目前为止还没有找到任何有用的东西。我试过通过后面的代码更改字体但是无法使用数据绑定值作为css属性值。该页面的所有目标是向用户显示哪些自定义字体可用。 lblFontExample的font-family应该反映该行中列出的字体。如果这些听起来很愚蠢，那就道歉了。我已经把头发拉了过来几天，而且逻辑似乎正在快速下降所以我认为现在是时候要求一些帮助了，所以要比任何有帮助的人先进。

我的代码背后：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data.SqlTypes;
using System.Data.SqlClient;
using System.Web.Configuration;
using System.IO;
using System.Data;

public partial class Admin_addFont : System.Web.UI.Page
{
private string fontUploadDirectory;
private string cssUploadDirectory;
private string connectionString =
  WebConfigurationManager.ConnectionStrings["bncConn"].ConnectionString;

protected void Page_Load(object sender, EventArgs e)
{
    // ensure files are uploaded to the right folder
    fontUploadDirectory = Path.Combine(
        Request.PhysicalApplicationPath, "fonts");

    if (!this.IsPostBack)
    {
        BindGrid();

    }

}

protected void BindGrid()
{

    // define ado.net objects
    SqlConnection con = new SqlConnection(connectionString);
    SqlCommand cmd = new SqlCommand("ProductDetails.bnc_Fonts", con);
    cmd.CommandType = CommandType.StoredProcedure;
    SqlDataAdapter adapter = new SqlDataAdapter(cmd);
    // define parameters
    cmd.Parameters.Add(new SqlParameter("@status", SqlDbType.VarChar, 50));
    cmd.Parameters["@status"].Value = "Display";

    // attempt to connect to db, read data, fill dataset and bind gridview. Catch exceptions and close the connection.
    try
    {
        con.Open();
        DataSet ds = new DataSet();
        adapter.Fill(ds, "Fonts");
        grdFonts.DataSource = ds;    
        grdFonts.DataBind();
    }
    catch (Exception err)
    {
        lblFontGrd.Text = err.Message;
    }
    finally
    {
        con.Close();
    }
}

protected void grdFonts_PageIndexChanging(object sender, GridViewPageEventArgs e)
{

    grdFonts.PageIndex = e.NewPageIndex;

    BindGrid();

}}

我的标记：

<%@ Page Title="" Language="C#" MasterPageFile="~/Admin/AdminMaster.master" AutoEventWireup="true" CodeFile="addFont.aspx.cs" Inherits="Admin_addFont" %>

<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="Server">
</asp:Content>
<asp:Content ID="Content3" ContentPlaceHolderID="RightCol" runat="Server">
        <h1>Fonts</h1>
        <div>
        <h2>Currently available fonts</h2>
    <asp:Label ID="lblFontGrd" runat="server"></asp:Label>
    <asp:GridView ID="grdFonts" runat="server" CellPadding="4" ForeColor="#333333" GridLines="None" AutoGenerateColumns="False"
         OnPageIndexChanging="grdFonts_PageIndexChanging">
        <AlternatingRowStyle BackColor="White" ForeColor="#284775"></AlternatingRowStyle>

        <Columns>
            <asp:TemplateField AccessibleHeaderText="ID" FooterText="ID" HeaderText="ID">
                <ItemTemplate>
                    <asp:Label ID="fontId" runat="server" Text='<%# Eval("FontId") %>'></asp:Label>
                </ItemTemplate>
            </asp:TemplateField>
            <asp:TemplateField AccessibleHeaderText="Font Name" FooterText="Font Name" HeaderText="Font Name">
                <ItemTemplate>
                    <asp:Label ID="lblfontName" runat="server" Text='<%# Eval("FontName") %>'></asp:Label>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:Label ID="lblfontNameEdit" runat="server" Text='<%# Eval("FontName") %>'></asp:Label>
                </EditItemTemplate>
            </asp:TemplateField>
            <asp:TemplateField AccessibleHeaderText="Example" FooterText="Example" HeaderText="Example">
                <ItemTemplate>
                    <asp:Label id="lblfontExample" runat="server" Text="This is an example"></asp:Label>
                    <asp:HiddenField ID="txtFontEx" runat="server" Value='<%# Eval("FontFamily") %>' />
                </ItemTemplate>
            </asp:TemplateField>
            <asp:TemplateField AccessibleHeaderText="Discontinued?" HeaderText="Discontinued?" FooterText="Discontinued?">
                <ItemTemplate>
                    <asp:CheckBox ID="Discontinued" runat="server" Checked='<%# Eval("Discontinued") %>' Enabled="false" />
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:CheckBox ID="Discontinued" runat="server" Checked='<%# Eval("Discontinued") %>' Enabled="true" />
                </EditItemTemplate>
            </asp:TemplateField>
            <asp:TemplateField HeaderText="Edit">
                <ItemTemplate>
                    <span onclick="return confirm('Are you sure you want to delete?')">
                        <asp:LinkButton ID="btnDelete" Text="Delete" runat="server" CommandName="Delete" />
                    </span>
                </ItemTemplate>
            </asp:TemplateField>
        </Columns>

        <EditRowStyle BackColor="#999999"></EditRowStyle>

        <FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White"></FooterStyle>

        <HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White"></HeaderStyle>

        <PagerStyle HorizontalAlign="Center" BackColor="#284775" ForeColor="White"></PagerStyle>

        <RowStyle BackColor="#F7F6F3" ForeColor="#333333"></RowStyle>

        <SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333"></SelectedRowStyle>

        <SortedAscendingCellStyle BackColor="#E9E7E2"></SortedAscendingCellStyle>

        <SortedAscendingHeaderStyle BackColor="#506C8C"></SortedAscendingHeaderStyle>

        <SortedDescendingCellStyle BackColor="#FFFDF8"></SortedDescendingCellStyle>

        <SortedDescendingHeaderStyle BackColor="#6F8DAE"></SortedDescendingHeaderStyle>
    </asp:GridView>
</div>
<div>
    <asp:FileUpload ID="flupCss" runat="server" />&nbsp;
    <asp:Label ID="lblCss" runat="server" AssociatedControlID="flupCss" Text="Upload file with file ending: .css"></asp:Label>
    <br />
    <asp:FileUpload ID="flupEot" runat="server" />&nbsp;
    <asp:Label ID="lblEot" runat="server" AssociatedControlID="flupEot" Text="Upload file with file ending: .eot"></asp:Label>
    <br />
    <asp:FileUpload ID="flupTtf" runat="server" />&nbsp;
    <asp:Label ID="lblTtf" runat="server" AssociatedControlID="flupTtf" Text="Upload file with file ending: .ttf"></asp:Label>
    <br />
    <asp:FileUpload ID="flupSvg" runat="server" />&nbsp;
    <asp:Label ID="lblSvg" runat="server" AssociatedControlID="flupEot" Text="Upload file with file ending: .eot"></asp:Label>
    <br />
    <asp:FileUpload ID="flupWoff" runat="server" />&nbsp;
    <asp:Label ID="lblWoff" runat="server" AssociatedControlID="flupWoff" Text="Upload file with file ending: .woff"></asp:Label>
    <br />
    <asp:FileUpload ID="flupWoff2" runat="server" />&nbsp;
    <asp:Label ID="lblWoff2" runat="server" AssociatedControlID="flupEot" Text="Upload file with file ending: .woff2"></asp:Label>
    <br />
    <asp:Button ID="btnUploadFont" runat="server" Text="Add Font" />
</div>

最后我的存储过程：

CREATE PROCEDURE [ProductDetails].[bnc_Fonts] 
-- Add the parameters for the stored procedure here
@Status varchar(50) = '', 
@FontId tinyint = '',
@FontName varchar(50) = '',
@FontFamily varchar(50) = '',
@Discontinued bit = ''
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;

if (@Status = 'Display')
begin
select FontId, FontName, FontFamily, Discontinued 
from ProductDetails.Fonts 
where Discontinued = 0
order by FontName asc   
end
if (@Status = 'FontFam')
begin
select FontFamily from ProductDetails.Fonts
where FontId = @FontId
end
if (@Status = 'Add')
begin
insert into ProductDetails.Fonts (FontName, FontFamily, Discontinued)
values (@FontName, @FontFamily, @Discontinued)
end
if (@Status = 'Delete')
begin
UPDATE ProductDetails.Fonts
SET Discontinued = @Discontinued
where FontId = @FontId
end
END
GO

Answer 1

<asp:Label id="lblfontExample" Font-Names='<%# BuildFont(Eval("FontFamily").ToString()) %>' runat="server" Text='<%# Eval("FontName") %>'></asp:Label>

在代码背后：

public static string[] BuildFont(string font)
{
    string[] array = new string[1];
    array[0] = font;
    return array;
}

字体名称示例：Verdana，Times New Roman ..

使用数据库值从后面的代码更改css

1 个答案: