读取APP.config时出错

chrisziling 2008-09-22 10:12:27

使用

string dbpath = System.Configuration.ConfigurationSettings.AppSettings["CardFlow.Properties.Settings.KCBusMagConnectionString"];

获取app.config内的Access数据库连接字符串时出错，提示：ConnectionString 属性尚未初始化。请各位前辈指点一下。

app.config内容如下：



<?xml version="1.0" encoding="utf-8" ?>

<configuration>

    <configSections>

    </configSections>

    <connectionStrings>

        <add name="CardFlow.Properties.Settings.KCBusMagConnectionString"

            connectionString="Data Source=MICROSOF-B8387E;Initial Catalog=KCBusMag;User ID=sa"

            providerName="System.Data.SqlClient" />

        <add name="CardFlow.Properties.Settings.CxbusCardFlowConnectionString"

            connectionString="Provider=Microsoft.Jet.OLEDB.4.0;Data 



Source=|DataDirectory|/DB/CxbusCardFlow.mdb;Persist Security Info=True;Jet OLEDB:Database Password=chris"

            providerName="System.Data.OleDb" />

    </connectionStrings>

</configuration>

...全文

314 8 打赏收藏转发到动态举报

写回复

用AI写文章

8 条回复

切换为时间正序

请发表友善的回复…

发表回复

sytu_hzj 2008-09-22

打赏
举报

不用这么麻烦吧，直接使用

Properties.Settings.XXX

访问就可以了，其中XXX为你的连接字符串的名称

s000rd 2008-09-22

打赏
举报



<?xml version="1.0" encoding="utf-8" ?>

<configuration>

        <connectionStrings>

        <add name="CardFlow.Properties.Settings.KCBusMagConnectionString"

            connectionString="Data Source=MICROSOF-B8387E;Initial Catalog=KCBusMag;User ID=sa"

            providerName="System.Data.SqlClient" />

        <add name="CardFlow.Properties.Settings.CxbusCardFlowConnectionString"

            connectionString="Provider=Microsoft.Jet.OLEDB.4.0;Data 



Source=|DataDirectory|/DB/CxbusCardFlow.mdb;Persist Security Info=True;Jet OLEDB:Database Password=chris"

            providerName="System.Data.OleDb" />

    </connectionStrings>

</configuration>

string dbpath = System.Configuration.ConfigurationManager.ConnectionStrings["CardFlow.Properties.Settings.KCBusMagConnectionString"];





记得引用System.configuration.dll

chrisziling 2008-09-22

打赏
举报

[Quote=引用 1 楼 ericzhangbo1982111 的回复:]
<?xml version="1.0" encoding="utf-8" ?>
<Configuration>
<appSettings>

string dbpath = System.Configuration.ConfigurationSettings.AppSettings["CardFlow.Properties.Settings.KCBusMagConnectionString"];

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<configSections>
</configSections>
<connectionStrings>
<add name="CardFlow.Properties.Settings.KCBusMagConnect…
[/Quote]

app.config是系统自动生成的，要将塔该成这样吗？

ericzhangbo1982111 2008-09-22

打赏
举报

。。。。。又少打了。算了。我不来了

总之你的app.config要对应才对
你没用appconfig怎么从AppSettings里面取得

你的appconfig文件
的格式里面只有connectionStrings
没有AppSettings所以取得不到
你可以用ConfigurationSettings来取得

string dbpath = System.Configuration.ConfigurationSettings.ConnectionStrings["CardFlow.Properties.Settings.KCBusMagConnectionString"];

ericzhangbo1982111 2008-09-22

打赏
举报

string dbpath = System.Configuration.AppSettings["CardFlow.Properties.Settings.KCBusMagConnectionString"];

上面那个打错了
是这个才对

ericzhangbo1982111 2008-09-22

打赏
举报

<?xml version="1.0" encoding="utf-8" ?>
<Configuration>
<appSettings>

string dbpath = System.Configuration.ConfigurationSettings.AppSettings["CardFlow.Properties.Settings.KCBusMagConnectionString"];

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<configSections>
</configSections>
<connectionStrings>
<add name="CardFlow.Properties.Settings.KCBusMagConnectionString"

string dbpath = System.Configuration.ConfigurationSettings["CardFlow.Properties.Settings.KCBusMagConnectionString"];

你要从对应的里面找才可以

chrisziling 2008-09-22

打赏
举报

添加项目应用System.configuration.dll，然后使用命名空间System.configuration
然后使用
string dbpath = System.Configuration.ConfigurationManager.ConnectionStrings["CardFlow.Properties.Settings.KCBusMagConnectionString"];

chrisziling 2008-09-22

打赏
举报

[Quote=引用 6 楼 sytu_hzj 的回复:]
不用这么麻烦吧，直接使用
C# code
Properties.Settings.XXX

访问就可以了，其中XXX为你的连接字符串的名称
[/Quote]

改成“string dbpath = Properties.Settings.CxbusCardFlowConnectionString;后还是出错啊！！
错误：非静态的字段、方法或属性“CardFlow.Properties.Settings.CxbusCardFlowConnectionString.get”要求对象引用