javascript 如何显示和隐藏 html 字段集以及从 Asp.Net 代码后面设置图例文本
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How to show and hide html fieldset And also Set legend text from Asp.Net Code behind
提问by Arun CM
I have a filedset and legend inside that with "some text" and inside this fieldset i have a GRID
我有一个带有“一些文本”的文件集和图例，在这个字段集内我有一个 GRID
I have 2 questions
我有2个问题
How to show ? hide html filedset from code behind, i tried the following way to show and hide the field set
a) set runat="server"--but it didnt work b) i pasted the fieldset inside an asp.net panel and tried to show/hide the panel, it also didnt work
- How to set text for legend from code behind , ie I want to set "some text" + Value_Form_Code Behind AS leged text
如何显示？从后面的代码中隐藏 html 文件集，我尝试了以下方法来显示和隐藏字段集
a) 设置 runat="server"--但它不起作用 b) 我将字段集粘贴到 asp.net 面板中并尝试显示/隐藏面板，它也不起作用
- 如何从后面的代码中设置图例的文本，即我想设置“一些文本”+ Value_Form_Code 在 AS 后边的文本
Note :I am using "Rad Ajax Manager" and Rad Ajax LoadingPanel
注意：我正在使用“Rad Ajax Manager”和 Rad Ajax LoadingPanel
回答by meda
<asp:Panel ID="Panel1" runat="server" >
<fieldlset>
<legend><asp:Label id="Label1" runat="server" /></legend>
</fieldset>
</asp:Panel>
How to show /hide html filedset from code behind ?
如何从后面的代码中显示/隐藏 html 文件集？
Panel1.Visible = true; // or false
How to set text for legend from code behind , ie I want to set "some text" + Value_Form_Code Behind AS legend text ?
如何从后面的代码设置图例文本，即我想在 AS 图例文本后面设置“一些文本”+ Value_Form_Code？
Label1.Text = String.Format("some text {0}",Value_Form_Code);
回答by Nils
it should also be possible to add an IDand runat="server"to your fieldset and control visibility through code-behind. Just remember to write 'ID' in upper letters.
还应该可以向您的字段集添加ID和runat="server"，并通过代码隐藏控制可见性。请记住用大写字母写“ID”。
<fieldset ID="myFieldset" runat="server">
You won't be able to control the legend text, unless you give it an ID and runat itself. But visibility is absolutely possible.
您将无法控制图例文本，除非您为其提供 ID 和 runat 本身。但是可见性是绝对可能的。
The upside of this approach is: no needless html markup (Panel would be extra div). The downside: fieldsets are not really asp-controls, so some things might give you exceptions, so use carefully.
这种方法的优点是：没有不必要的 html 标记（面板将是额外的 div）。缺点：fieldsets 并不是真正的 asp 控件，所以有些东西可能会给你例外，所以要小心使用。
I use this approach only when I want to prevent controls from rendering at all in certain cases (visibility does that).
仅当我想在某些情况下完全阻止控件呈现时才使用这种方法（可见性就是这样做的）。
回答by milan m
1:I think you should put your fieldset inside an asp:panel and then hide/show the panel from your code-behind. This will automatically hide/show your fieldset.
1：我认为您应该将字段集放在 asp:panel 中，然后从代码隐藏中隐藏/显示面板。这将自动隐藏/显示您的字段集。
2:As far as setting the legend text is concerned, just set the legend with runat="server" and set the code from codebehind.
2：就设置图例文本而言，只需将图例设置为 runat="server" 并从 codebehind 设置代码。
回答by Bhavesh Kachhadiya
When you set the 'GroupingText'property of the asp:panelcontrol then It will render as the 'fieldset'tag in HTML and whatever set in the 'GroupingText'property value is rendered as the <legend>tag.
当您设置asp:panel控件的“GroupingText”属性时，它将呈现为HTML 中的“fieldset”标记，并且“GroupingText”属性值中设置的任何内容都将 呈现为标记。<legend>
I think following code will help you as per your requirement.
我认为以下代码将根据您的要求帮助您。
For Design side,
对于设计方面，
<asp:Panel runat="server" ID="Panel1" GroupingText="This is legend">
<h4>Your Content Goes Here</h4>
</asp:Panel>
<br />
<asp:Button ID="btnHidePanel" runat="server" Text ="Hide FieldSet" onclick="btnHidePanel_Click" />
<asp:Button ID="btnShowPanel" runat="server" Text ="Show FieldSet" onclick="btnShowPanel_Click" Visible="false" />
For Code-behind try this,
对于代码隐藏试试这个，
protected void btnHidePanel_Click(object sender, EventArgs e)
{
Panel1.Visible = false;
btnHidePanel.Visible = false;
btnShowPanel.Visible = true;
}
protected void btnShowPanel_Click(object sender, EventArgs e)
{
Panel1.Visible = true;
Panel1.GroupingText = "This Legend Text Has been Changed";
btnHidePanel.Visible = true;
btnShowPanel.Visible = false;
}
