使用控件Collection进行只读控件 [英] Make a control Readonly using the controls Collection

问题描述

是否可以遍历所有控件集合并将

文本框单独作为只读。我没有看到

控件的只读属性在这种情况下，有人可以帮助我吗？

我想在下面做这样的事情。但是我得到一条消息Readonly不是

有效财产。

foreach（控制ctl in pnlBenefits.Controls）

{

if（ctl is TextBox）

ctl.ReadOnly = false;

}

解决方案

我相信你所追求的是：

..GetType（）

-

Curt Christianson

所有者/首席开发人员，DF-Software

网站： http://www.Darkfalz.com

博客： http://blog.Darkfalz.com

" GP" ; < [e-mail]>在消息中写道

新闻：C0 ********************************** @ microsof t.com ...

是否可以遍历所有控件集合并将
文本框单独设为只读。我没有看到我想在下面做这样的事情。但是我得到一条消息Readonly不是
有效的属性。
foreach（Control ctl in pnlBenefits.Controls）
{
if（ctl is TextBox）
ctl.ReadOnly = false;
}

为什么不进行明确的类型转换，然后获取其只读属性

foreach（控制ctl in pnlBenefits.Controls）

{

if（ctl is TextBox）

{

（（TextBox）ctl）.ReadOnly = false;

}

}


i认为这应该做的工作

-


问候，


Hermit Dave

（ http://hdave.blogspot.com ）

" ; GP" < [e-mail]>在消息中写道

新闻：C0 ********************************** @ microsof t.com ...

是否可以遍历所有控件集合并将
文本框单独设为只读。我没有看到我想在下面做这样的事情。但是我得到一条消息Readonly不是
有效的属性。
foreach（Control ctl in pnlBenefits.Controls）
{
if（ctl is TextBox）
ctl.ReadOnly = false;
}

" GP" < [e-mail]>在消息中写道

新闻：C0 ********************************** @ microsof t.com ...

是否可以遍历所有控件集合并将
文本框单独设为只读。我没有看到我想在下面做这样的事情。但是我得到一条消息Readonly不是
有效的财产。

foreach（控制ctl in pnlBenefits.Controls）

{

if（ctl is TextBox）

{

TextBox txt =（TextBox）ctl;

txt.ReadOnly = false;

}

}

-----

John Saunders

Is it possible to iterate through all the controls collection and make the
textboxes alone as read only.I don''t see a readonly property for the
Control.Can some one help me in this context?
I want to do something like this below.But I get a message Readonly is not
valid property.
foreach (Control ctl in pnlBenefits.Controls)
{
if (ctl is TextBox)
ctl.ReadOnly=false;
}

解决方案

I believe what you are after is:
..GetType()
--
Curt Christianson
Owner/Lead Developer, DF-Software
Site: http://www.Darkfalz.com
Blog: http://blog.Darkfalz.com
"GP" <[e-mail]> wrote in message
news:C0**********************************@microsof t.com...

Is it possible to iterate through all the controls collection and make the
textboxes alone as read only.I don''t see a readonly property for the
Control.Can some one help me in this context?
I want to do something like this below.But I get a message Readonly is not
valid property.
foreach (Control ctl in pnlBenefits.Controls)
{
if (ctl is TextBox)
ctl.ReadOnly=false;
}

why dont you do a explicit typecast and then get its readonly property
foreach (Control ctl in pnlBenefits.Controls)
{
if (ctl is TextBox)
{
((TextBox)ctl).ReadOnly = false;
}
}

i think this should do the job
--

Regards,

Hermit Dave
(http://hdave.blogspot.com)
"GP" <[e-mail]> wrote in message
news:C0**********************************@microsof t.com...

Is it possible to iterate through all the controls collection and make the
textboxes alone as read only.I don''t see a readonly property for the
Control.Can some one help me in this context?
I want to do something like this below.But I get a message Readonly is not
valid property.
foreach (Control ctl in pnlBenefits.Controls)
{
if (ctl is TextBox)
ctl.ReadOnly=false;
}

"GP" <[e-mail]> wrote in message
news:C0**********************************@microsof t.com...

Is it possible to iterate through all the controls collection and make the
textboxes alone as read only.I don''t see a readonly property for the
Control.Can some one help me in this context?
I want to do something like this below.But I get a message Readonly is not
valid property.

foreach (Control ctl in pnlBenefits.Controls)
{
if (ctl is TextBox)
{
TextBox txt = (TextBox) ctl;
txt.ReadOnly=false;
}
}
-----
John Saunders

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