panel | 易学教程

How to set asp Panel element visible/hidden with javascript/jquery

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I have a asp:Panel element on my page. I'm able to set its visibility in code behind. But I need to also hide it through javascipt. My panel is defined as following: <asp:Panel ID="pnlUpdateDisplay" runat="server" Visible="false" style="width:500px; border-width: thick;"> <table style="width:300px;"> <tr> <td valign="middle" style="width:120px" align="center"> <asp:Label ID="lblUpdateMessage" runat="server" style="position:absolute; left: 120px; top: 120px;"></asp:Label> </td> </tr> </table> </asp:Panel> When I do this: var panel = document.getElementById('pnlUpdateDisplay'); panel.style

How to access public subs of dynamically loaded user control in a panel

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问题 I have a panel and a button in a form and 2 user controls, I dynamically loaded the first user control in the panel then inside the userControl1 I have a method that I want to access when I clicked the button in the form and then change the displayed user control to userControl2 in the panel, how should I do that? form1 code: Public Class form1 Private Sub form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load Dim control1 = New UserControl1 Panel1.Controls.Add(control1) control1

How to refresh a panel after data is loaded?

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I have a extjs panel rendered inside a div like this: panel = new Ext.Panel({ layout : 'fit', renderTo: 'my_div', monitorResize: true, // relay on browser resize height: 500, autoWidth: true, items : [ centerPanel ], plain : true }); After the page has loaded the panel is empty, but when I resize the browser the contents appears by magic! I think the data has not finished loading when the panel is rendered the first time. How can I get the contents to show without resizing the browser? I suspect the issue is that you need to explicitly cause the panel to be rendered. After creating the panel,

How can I draw on Panel so it does not blink?

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问题 This is my code. When I move cursor over Form it works, circle is moving but it is blinking. How can I fix this? public partial class Preprocesor : Form { int x, y; Graphics g; public Preprocesor() { InitializeComponent(); } private void Preprocesor_Load(object sender, EventArgs e) { g = pnlMesh.CreateGraphics(); } private void pnlMesh_Paint(object sender, PaintEventArgs e) { g.Clear(Color.White); g.FillEllipse(Brushes.Black, x, y, 10, 10); } private void pnlMesh_MouseMove(object sender,

VB / C#: Resizing two controls equally

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问题 I have made a window in which I will be having two groups/panels and some buttons in between them. I want to code the resizing behavior in a way that when the window expands, the two panels increase their widths while keeping the distance between them constant. Please see this mockup: As you see above, I want the 'Local' and 'Server' Panels to resize while keeping the distance in between them same. If I use anchors (Top+Left+Right+Bottom), the left panel will overlap the right one and the

How to add the same control into multi panel in C#?

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问题 I have a button called button1 and two panels called: panelA and panelB (visible is false by default) and the following code (WinForms): panelA.Controls.Add(button1); panelB.Controls.Add(button1); panelB.Visible = true; // I see the button1 panelA.Visible = true; // I don't (ofcoz panelB.Visible is still false) MessageBox.Show(panelA.Controls.Contains(button1).ToString); //False, why? I don't know why? Maybe it's a stupid question for you but I'm a newbie so I don't really have any idea about

How do you force refresh of a wx.Panel?

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问题 I am trying to modify the controls of a Panel, have it update, then continue on with code execution. The problem seems to be that the Panel is waiting for Idle before it will refresh itself. I've tried refresh of course as well as GetSizer().Layout() and even sent a resize event to the frame using the SendSizeEvent() method, but to no avail. I'm at a loss here, I find it difficult to believe there is no way to force a redrawing of this panel. Here is the code that changes the controls: def

How can I scroll my panel using my mousewheel?

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问题 I have a panel on my form with AutoScroll set to true so a scrollbar appears automatically. How can I make it so a user can use his mouse wheel to scroll the panel? Thanks SO. 回答1: The panel or a control in the panel must have focus. Note that if the control with focus has scroll bars, it will scroll instead of the panel. 回答2: What worked for me was adding panel1_MouseEnter EventHandler: private void panel1_MouseEnter(object sender, EventArgs e) { panel1.Focus(); } 回答3: Below code works for

Mozilla “Jetpack” Add-On: Anchor Panel to Widget

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I'm making a Jetpack extension in which a widget opens a panel. Clicking the widget opens the panel as expected (anchored in the lower-right corner to the widget). But if I call widget.panel.show() from my code, the panel opens detached from the widget, centered in the screen, floating in space. In short, how can I fix this? Can I simulate a click event on the widget (somehow) instead of calling widget.panel.show()? Can I force the panel to anchor to the widget? This question has a solution that worked in the previous Jetpack API, but I can't translate to the new interface: Using positioning

react-bootstrap Accordion not collapsing with map

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I have an array of items I would like to create Panels out of which would eventually be inserted into the Accordion. In one file, I have: var items = this.state.contents.map(function(content, index) { return <Content {...content}, key={index}/> }; return ( <Accordion> {items} </Accordion> ); In another file called Content I have: return( <Panel header={this.props.header} eventKey={this.props.key}> {this.props.body} </Panel> ); When I have the Accordion and Panel in the same file, they work. But when I generate the Panel using map after splitting them into two files, it doesn't seem to collapse