Hide Element In ASP Based On Inside Repeater
Jan 5, 2010
I know how to use a simple If statement wrapped in the <%# tags to hide something, but I don't know how to do it in a repeater when I need to access Container.DataItem, as in I need the dataItem currently being 'repeated'
eg
if (CurrentValidationMessage.Link != "")
{
show a hyperlink
}
Markup:
<asp:Repeater ID="repValidationResults" runat="server">
<HeaderTemplate>
</HeaderTemplate>
<ItemTemplate>
<a href='<%# ((MttImportValidationMessage)Container.DataItem).EditLink %>'> Link to erroneous Milestone </a>
<%# ((MttImportValidationMessage)Container.DataItem).Message %>
<br />
</ItemTemplate>
</asp:Repeater>
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Similar Messages:
Nov 12, 2010
what changed do I need to make to my code for it to achieve what I'm after.
At the moment I am getting a "cannot cast to type" error message with the below code.
I have also tried calling the ItemDataBound method in with the parent repeater tags and had no errors but when I clicked on the button it would just move back to the top of the page and would not hide or show any data. Also I have made the div style to none but the first record still shows its child but the rest don't.
[code].....
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May 6, 2010
I have an aspx form containing many individual controls like and one repeater control. The repeater control items are basically having dropdowns, textboxes etc. next to each other. My problem is I can set the tab index of each individual element easily but I don't know how to set the tab index of the first element in of the first repeater item. That is why first I need to click the item and then the Tab index inside the repeater control works fine. Do you know how can I fix this? Should I handle this on the server side? or jQuery etc?
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Feb 9, 2011
how to hide a repeater column based on the user privileges.
Say I have:
<asp:Repeater ID="repeater" runat="server>
<HeaderTemplate>
<table id="table_id">
<tr>
<th>Name</th>
<th>Secret Info</th>
<tr>
</HeaderTemplate>
<ItemTemplate>
<tr>
<td><asp:Label ID="Label1" runat="server" Text='<%# Eval("Name") %>' /></td>
<td><asp:Label ID="Label1" runat="server" Text='<%# Eval("SecretInfo") %>' /></td>
<tr>
<ItemTemplate>
<AlternatingItemTemplate>
<tr>
<td><asp:Label ID="Label1" runat="server" Text='<%# Eval("Name") %>' /></td>
<td><asp:Label ID="Label1" runat="server" Text='<%# Eval("SecretInfo") %>' /></td>
<tr>
<AlternatingItemTemplate>
<FooterTemplate>
</table>
</FooterTemplate>
</asp:Repeater>
How would I only display the 'Secret Info' column to logged on users?
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May 24, 2010
I have a repeater with select html inside the item template.
I could not use dropdown list as it does not support so i had to build select with inside a repeater.
On button click i want get the value of the selected item.
the inside the repeater does not have runat=server.
How can i do this?
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May 7, 2015
I have a nested repeater, I want to hide label control in child repeater if its empty.
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Sep 14, 2013
My Repeater will display the data like below
Id Name Mark1 Mark2 Mark3
1 aaa 50 30 20
2 bbb 50 30 30
3 ccc 50 30 20
if mark3 has all fields with 0 means i want to hide column mark3... How to do this....
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May 18, 2010
I'm trying to hide a row in my repeater footer like so:
[Code]....
When it tries to hide the row i'm getting 'System.NullReferenceException: Object reference not set to an instance of an object.' Does anybody know how I can get araound this?
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Nov 12, 2010
the output I am getting at the moment, is my parent data displays along with my child data. However when I click on the button to toggle the views i am getting a "cannot cast type error"I have also tried to put the itemdatabound event in my parent repeater tag, that worked but when I click on the buttons it just keeps moving to the top of the page and won't hide or show any of the child data except for the first child of the first parent.
<%@Page Language="VB" EnableEventValidation="false"%>
<%@Import Namespace="System.Data" %>
<%@Import Namespace="System.Data.OleDb" %>
<script runat="server">
Dim ds As DataSet, divdtls, btnview, repeat
Sub ItemDataBound
[code]...
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Nov 29, 2010
I added a (Read More...) Div to my repeater's item template, that doesn't contain any information.
I want to add a text button or an anchor to my item template..when it's clicked it should call a javascript method that writes information to the Div and it will take the content to write as a parameter, the content will be passed as an Eval method, for example it will eval("education")...and when it's clicked again it will hide the Div
I tried various and near approaches but it all worked outside the repeater and item template tags, but if I placed the identical code to the repeater and my javascript to the head tag it won't function!
I don't want to post my code, because I'm sure it's an easy and essential trick for any developer...so I was hoping for an original example not an edit to my test code(beginners logic)
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May 7, 2015
This is my Code
My query is if i select Other in dropdownlist i want visible textbox..
how to i do it..
<asp:GridView ID="TypeFruit" runat="server">
<Columns>
<asp:TemplateField HeaderText="Type" >
<ItemTemplate>
<asp:DropDownList ID="ddlfruit" runat="server" >
<asp:ListItem Value="0">Select</asp:ListItem>
<asp:ListItem Value="1">Fruit</asp:ListItem>
<asp:ListItem Value="2">Other</asp:ListItem>
</asp:DropDownList>
<asp:TextBox ID="TxtOther" runat="server" Visible="false"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
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May 7, 2015
In my query i have 1 gridview..
In this gridview i have 1 dropdownlist and 1 textbox..
textbox is in visible=false state..
My question is after selecting dropdown list selected value i want visible textbox in gridview..
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Apr 7, 2010
I have set up an asp repeater to go through and display a list of people based on input parameters. Within that repeater I have a repeater that displays specific details about each person. No problem so far.
However, my requirement is that I only display the names, with a plus/minus sign to the left of the name. Clicking on the plus sign will expand that person's information to show the details. Clicking the minus sign will collapse the detail info.
I have a panel set up within my primary repeater that encompasses the secondary repeater.
Here's the beginning of the code:
[Code]....
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Jan 17, 2011
I have div in aspx page with the runat="server" attribute. How can I hide this element in javascript?
<div id="content" runat="server">
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Jan 8, 2010
I am trying to display elements in a web page using <li>. The structure of the page is as follows
<ul>
<li> (How to hide its visibility if this has no child elements)
<ul>
<li> item 1</li>
<li> item 2</li>
<li> item 3</li>
</ul>
</li>
</ul>
My question is if the li element has no child items how do I hide it. I need to do this dynamically. If I find that I have no records to display as <li> item </li>....I should be able to hide the parent <li>. One soultion is make the <li id="something" runat=server>
if the child elements are not be shown I tried doing childelement.parent.Visible = false.
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Jun 23, 2010
For the solution, I cannot use any postback methods, because this is all working through ajax. The solution need to be implemented in the asp.net code. I have a List<WebPage> that contains a list of Links (List<Link>) and I need for all the links to bind repetitive information such as page title, id, url. Here is my current repeater.
<div id="result">
<asp:Repeater runat="server" id="results">
<Itemtemplate>
<asp:Repeater runat="server" datasource='<%# Eval("Links") %>'>
<Itemtemplate>
<tr class="gradeX odd">
<td><%# Eval("Id") %></td> //property of WebPage (part of results repeater)
<td><%# Eval("Title") %></td> //property of WebPage (part of results repeater)
<td><%# Eval("Url") %></td> //property of WebPage (part of results repeater)
<td><%# Eval("URL") %></td>//Property of Link
<td><%# Eval("URLType") %></td> //Property of Link
<td><%# Eval("URLState") %></td> //Property of Link
</tr>
</Itemtemplate>
</asp:Repeater>
</Itemtemplate>
</asp:Repeater>
</div>
of course this doesnt work, how can i do this?
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Oct 21, 2010
I am in the process of re-developing my website into ASP.NET from a product called LogiXML. My background is in front end design using XHTML, CSS and Javascript with a good understanding of SQL so this is a HUGE leap for me.
In one of my Views I have created an asp data source to count the number of scheduled meetings:
<asp:SqlDataSource
ID="CountRS"
runat="server" ConnectionString="<%$ ConnectionStrings:ConnectionString
%>"
SelectCommand="
SELECT count(*) as countRS
FROM WebMeeting_Calendar
WHERE MeetingDate > getdate()
and MeetingType = 2
">
</asp:SqlDataSource>
Next, I created an asp panel where I wanted to control the "Visible" element by the value returned in the data source but even when using a simple 1 = 0 (to return False) is not working for me.... Basically, if the count of meetings is zero, I don't want the panel to show.
<asp:Panel
ID="Panel1"
runat="server" Visible="<%# 1 = 0
%>"
>
</asp:Panel>
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Apr 4, 2011
the template of my website looks quite good when printed, so i have no separate print css.
However, there is one element at the top which is not needed when printed, and about 2 inches high, so that's kind of a waste at the top of the printed page (which imho distracts the user from the actual content)
So, what i want to accomplish, is 'hide' that element (div) at the top of the page when a user prints the page.
But so far the only solution i've seen is top create a separate css document which then will be used when the user will print my page. That sounds good, but do i now have to maintain 2 different stylesheets with exact the same content (besides that one div)?
Or is it possible to sort of override the standard stylesheet in the print stylesheet? (so i only have to define the exception for that one div in my print stylesheet?)
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Feb 3, 2014
I am using a repeater control and i want to use one more repeater control inside the existing repeater control .
Like this:
<asp:Repeater ID="Repeater1" runat="server"> <HeaderTemplate> </HeaderTemplate>
<ItemTemplate>
<!-- start child repeater --> Here I want to use one repater control <!-- end child repeater -->
</ItemTemplate>
</asp:Repeater>
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Jan 31, 2010
got an example of a repeater inside a repeater (dataBound) code behind?
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Jan 18, 2010
I have a user control that displays a shopping cart in an ecommerce application.
The main cart display is a repeater that renders as a html table. In one of those table columns, there is another repeater to display people associated with the products int he cart (it's a repeater in case there is a line item >1 with multiple people).
I've added an ImageButton that I want to use to change the person associated with the item. At first, when I'd click on it I was getting this error:
Invalid postback or callback argument. Event validation is enabled using <pages enableEventValidation="true"/> in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation.
So as an experiment I disabled EventValidation on the page (not the control it's self) and now I do not get an error, but I also do not ever hit the breakpoint I set in the innermost repeater's ItemCommand event.
So I wonder how I might do this without disabling EventValidation, because this control will show up on multiple pages and we don't want to edit them all. Also, I'll need to know not only the repeater containing the control's row that the event came from but also the row index of the repeater containg this one. Is this possible?
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Jul 12, 2010
I have repeater in which I have 2 hyperlink in the footer of the repeater and I want that the hyperlink can navigate from the page_load
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Feb 6, 2011
I am using Nested Repeater repeater1 and repeater2 in my project . one button is there inside repeater2 but i cant use that button using e.commandname
so how to use that button and how to write code on it.
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Nov 8, 2010
This question is related to this question: Given System.Type T, Deserialize List Given this function to retrieve a list of all elements.
public static List<T> GetAllItems<T>()
{
XmlSerializer deSerializer = new XmlSerializer(typeof(List<T>));
TextReader tr = new StreamReader(GetPathBasedOnType(typeof(T)));
List<T> items = (List<T>)deSerializer.Deserialize(tr);
tr.Close();
}
I want to create a function to retrieve just one item of those with the needed UID (Unique ID):
public static System.Object GetItemByID(System.Type T, int UID)
{
IList mainList = GetAllItems<typeof(T)>();
System.Object item = null;
if (T == typeof(Article))
item = ((List<Article>)mainList).Find(
delegate(Article vr) { return vr.UID == UID; });
else if (T == typeof(User))
item = ((List<User>)mainList).Find(
delegate(User ur) { return ur.UID == UID; });
return item;
}
However, this does not work since GetAllItems<typeof(T)>(); call is not properly formed. Question 1a: How can I fix the second function to properly return a unique element, given that all classes that will call GetItemByID() have UID as an element in them? I'd love to be able to do public static <T> GetItemByID<T>(int UID) if possible. Same question, but suppose I cannot modify the function prototype of GetItemByID?
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Dec 11, 2010
I got this in Repeater's item template
<span style="color: green;" id="TickMark" visible="false" runat="server">√</span>
In ItemBound event intellisense is not detecting this ID "TickMark" I need to make √ ie Square root symbol visible inside data bound
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