hi i have some Problem with my Window-Control, if i set the BrowserDialogBox property to True
im becoming an Error Rendering Control - Window1:
"an unhandled exception has occurred object reference not set to an instance of an object."
Synfusion:
<syncfusion:Window ID="Window1" runat="server" Height="200px" Width="250px"
Title="Öffnen" IconImageUrl="~/Images/KBD-Favicon.ico" EnableXHTML="False" BrowserDialogBox="true" EnableTheming="true">
</syncfusion:Window>
I have used Syncfusion window control as like your code, but it is working without any error which you have reported. Post more of your code and we'll see what you done wrong.
<p>
You can also find <a href="http://go.microsoft.com/fwlink/?LinkID=152368&clcid=0x409"
title="MSDN ASP.NET Docs">documentation on ASP.NET at MSDN</a>.
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:Panel ID="Panel1" runat="server">
<syncfusion:Window ID="Window1" runat="server" Height="200px" Width="250px" Title="Öffnen"
IconImageUrl="~/Images/KBD-Favicon.ico" EnableXHTML="False" InitiallyShown="True"
BrowserDialogBox="true" EnableTheming="true">
</syncfusion:Window>
</asp:Panel>
</p>
Related
i have a class that is teaching asp.net in visual studio (i use the 2022 version). For now we are focusing on Design mode but for some reason my Design mode is broken.
Everytime i use the Wizard tool (only one that i know of) it keeps saying "Error Rendering Control" here is a pic of the Error
my code doesn't have any problem because when i run it in the browser it works and when i gave the files to a few of my classmates it seems to be working for them too.
i would really appreciate any help you can give cause this is driving me nuts.
This is my code if you'd want to test it yourself.
ASP:
<%# Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="WebApplication3.WebForm1" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Panel ID="Panel1" runat="server">
<asp:Wizard ID="Wizard1" runat="server" ActiveStepIndex="0" OnFinishedButtonClick="Wizard1_FinishButtonClick1" Width="500px" FinishCompleteButtonText="Finish" FinishPreviousButtonText="Back" StartNextButtonText="Next" StepNextButtonText="Next">
<WizardSteps>
<asp:WizardStep ID="WizardStep1" runat="server" Title="About you">
<asp:Label ID="Label1" runat="server" Text="Name:"></asp:Label>
<asp:TextBox ID="name" runat="server"></asp:TextBox>
</asp:WizardStep>
<asp:WizardStep ID="WizardStep2" runat="server" StepType="Finish" Title="Favorite Language">
<asp:DropDownList ID="FavoriteLanguage" runat="server">
<asp:ListItem>C#</asp:ListItem>
<asp:ListItem>Visual Basic</asp:ListItem>
<asp:ListItem>CSS</asp:ListItem>
</asp:DropDownList>
</asp:WizardStep>
<asp:WizardStep runat="server" StepType="Finish" Title="Ready">
<asp:Label ID="resualt" runat="server" Text="Label"></asp:Label>
<br />
</asp:WizardStep>
</WizardSteps>
</asp:Wizard>
</asp:Panel>
</div>
</form>
</body>
</html>
C#:
`
namespace WebApplication3
{
public partial class WebForm1 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
resualt.Text = "Your Name:" + name.Text;
resualt.Text += "<br />Your Favorite Language:" + FavoriteLanguage.SelectedValue;
}
}
}
`
i tried reinstalling, repairing and even downgrading to an older version but it won't work. Sometimes after reinstalling it will get fixed but when i close the app and reopen it will break again.
Well, first of all, you don't have a "control of type view" in that page.
However, what I would do is make sure you install all of the bits and parts reuiqred for webforms.
Web forms are somewhat older now, and vs 2022 does not install all of the bits and parts and desingers required for such "older" type of projects based on webforms.
So, launch vs2022, (don't load a project).
Then from tools->Get Tools And features.
You should see this:
(and expand above)
Make sure you select these:
And these:
After that exit, vs, and restart.
I've a repeater ASP.NET control that contain an image slider that display 3 images every 10 sec by random from DB.I used a UpdatePanel ASP.NET control to reload this repeater .every things is OK, but I've a problem, when passed 10 seconds page is refresh! and i don't want to refresh page.How to fix this problem?
this is ASP.NET code:
<div id="middleSliderArea">
<div class="pikachoose">
<ul id="pikame">
<asp:Repeater ID="Repeater1" runat="server">
<ItemTemplate>
<li>
<asp:UpdatePanel runat="server" ID="UpdatePanel1">
<ContentTemplate>
<asp:Timer runat="server" ID="Timer1" Interval="10000" OnTick="Timer1_Tick"></asp:Timer>
<a href='<%#"MoreInfo.aspx?id="+Eval("ID") %>'>
<img runat="server" src='<%#Eval("Image") %>' /></a><span><%#Eval("Brief") %></span>
</ContentTemplate>
</asp:UpdatePanel>
</li>
</ItemTemplate>
</asp:Repeater>
</ul>
</div>
</div>
and you can see this effect here after 10 seconds.
You need to get all images ID's from DB to client Side (you use JSON object) at the beginning , after page load.
Then use "setInterval javascript method" and call another Javascript Method (for examle changeImage() ).
In changeImage() method you select img elements in the repeater than you can change the values and images. I know the explanation is not enought for you right now , if you need more I can help you ..
I have an application where I am using an image control to create an image gallery on a product UserControl. When I visit any product to see it's detail, it is working fine; But, there is some problem with one product. If I visit that specific product, it throws an exception in my error log. The exception is :
ViewState Size 5044!
The control code for the gallery is:
<div class="mainImage">
<asp:Image ID="ImageControl" runat="server" BorderWidth="0" CssClass="productImage" />
<asp:Image ID="NoIcon" runat="server" SkinID="NoIcon" Visible="false" EnableViewState="false" CssClass="productImage"/>
<asp:Image ID="NoThumbnail" runat="server" SkinID="NoThumbnail" Visible="false" EnableViewState="false" CssClass="productImage"/>
<asp:Image ID="NoImage" runat="server" SkinID="NoImage" Visible="false" EnableViewState="false" CssClass="productImage"/>
</div>
I am keep on searching but could not figure out the problem. Any one's help will be appreciated.
I am getting the below stated error in javascript. This error occurs when i try to cal update panel on button click
Sys.WebForms.PageRequestManagerParserErrorException: The message received from the server could not be parsed. Common causes for this error are when the response is modified by calls to Response.Write(), response filters, HttpModules, or server trace is enabled.
Details: Error parsing near 'Panel|UpdatePanel1|
<div id="up'.
Here is the UpdatePanel code:
<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode=Conditional >
<ContentTemplate>
<div style="font-size:10px; font-weight:bold;display:none;" align=center id="up_div" runat=server >Apply Flat Rate to all days
<asp:TextBox ID="txtflatrate" runat="server" Width=40 ></asp:TextBox>
<asp:Button ID="btn_apply" runat="server" Text="Go" UseSubmitBehavior=false OnClick="btn_apply_Click" />
<asp:Table ID="tbl_charges" runat="server" EnableViewState=true>
</asp:Table>
Total: <asp:TextBox ID="txtttlrate" runat="server" ReadOnly="True"></asp:TextBox>
</div>
<div id="div_norates" runat=server visible=false style ="font-size:11px" class="red_font">
<font color='red'>
<center><b>Please make the neccessary changes before <i>creating a booking</i></b></font></CENTER><br/><br/><br/><center>The <i>season </i>for the date period chosen is <i>not set </i><br/> <center> <br/>OR </center> <br/> The <i>room type </i>for the season is <i>not set</i>. <br/><br/><br/>Make neccessary changes in <i>seasons master</i></center>
</div>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID=btn_calc EventName=click />
<asp:AsyncPostBackTrigger ControlID=btn_apply EventName=click />
</Triggers>
</asp:UpdatePanel>
I am not able to understand why this error is coming? Can anyone help me sort out this issue?
I believe the aspx markup in incorrect causing the parser error. Check at UpdateMode=Conditional
If that is not the case please ensure that you are not using a Response.Write() in the async postback(see error message).
I have a page with a listview that shows something like posts. On each post there should be a "rate box" which works similar to the "Like" button in facebook. The rate box is a User Control, that has an update panel inside it.
If I put the control with some random values in the page it works great - but when I put it inside the ListView, where it should be located, it won't work. The method is being called, but nothing happens.
I simplified the code a bit to make it easier to understand:
The "rate box" control:
protected void OnRateClick(object sender, ImageClickEventArgs e)
{
Rate++;
RateAmountLiteral.Text = Rate.ToString();
RateButton.Visible = false;
FeedbackLiteral.Visible = true;
rateButtonPanel.Update();
}
ascx:
<div class="rate_div">
<asp:UpdatePanel ID="rateButtonPanel" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<fieldset>
Rate:
<asp:Literal ID="RateAmountLiteral" runat="server"></asp:Literal>
<asp:ImageButton ID="RateButton" runat="server" ImageUrl="icn_rate.png"
OnClick="OnRateClick" />
<asp:Literal ID="FeedbackLiteral" runat="server" Visible="false">Thanks for rating!</asp:Literal>
</fieldset>
</ContentTemplate>
</asp:UpdatePanel>
</div>
aspx (using the control):
<asp:ListView ID="PostsView" runat="server" ItemPlaceholderID="itemPlaceHolder2"
<LayoutTemplate>
<div class="posts_div">
<asp:PlaceHolder ID="itemPlaceHolder2" runat="server" />
</div>
</LayoutTemplate>
<ItemTemplate>
<div class="post_div">
<div class="post_body">
<%# CurrentPost.Body %>
</div>
<UC:RatingBox id="RatingBox" runat="server"
PostID="<%# CurrentPost.ID %>"
Rate="<%# CurrentPost.Rate %>"/>
By: <a href="<%# CurrentPost.Author.LinkToProfile %>">
<%# CurrentPost.Author.DisplayName %>
</a> |
<%# CurrentPost.LiteralTime %>
</div>
</ItemTemplate>
</asp:ListView>
While debugging I noticed the controls in the method "OnRateClick" are empty and don't contain the right values. Please advice.
Also if you have any comments about the way I did things, don't hold yourself.
Thanks
There are a lot things that you may not have set up, I cannot tell from just the code snippet you have given. But make sure you do the following: -
1) Place a ScriptManager "" on the page.
If you are using master page in your application and your web page uses the master page, place script manager in master page. Or alternatively,you can also place script manager on specific web pages anyway.
2) Add a Triggers for the button RateButton in your Update panel.