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?
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.
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I have a repeater control and in its footer temlate is a button (or 2 in the example) and I want to catch its click event but seem to not be able to.
I tried in the repeater itemcommand event and also I tried defining a subprocedure for the 'occlick' event but neither works..
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I'm trying to calculate the sum of prices that are displayed in my ASP.NET Repeater.
I'm coding with C#.
My code'
[Code]....
got an example of a repeater inside a repeater (dataBound) code behind?
View 3 RepliesI 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?
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
View 2 RepliesI 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.
i have a repeater with a button in the footer template which i want to be able to update any of the items that are added (update quantites/totals/delete the item).
however the 'UpdateOrderDetails' event never fires when the button is clicked.
here is the code within the repeater...
<ItemTemplate>
<tr>
<td>
<asp:CheckBox ID="chkDelete" runat="server" />
<asp:HiddenField ID="hidProduct_Key" runat="server" />
[Code].....
but this procedure is never called when the button is clicked, so wondered what i need to do to get this working
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>
I got how to add textbox to gridview at footer... it working fine... but if i do pagination for it.. textbox at footer in gridview reapeting in all page.. but i want to show that textbox at last page of gridview..
View 1 RepliesI am trying to hide a <td> within a Repeater (see code below), but it doesn't hide the <td> in the last row.
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Iam finding the button control which is inside the Footer Template of Data list control.
i tried the below code but it is not working suggest me where iam doing wrong or how i find the control avaiable in footer template of Data list.
Here is my code
[Code]....
iam using the above code on button click
can i display columns inside the datagrid footer? if can.. i can i have the syntax?
for example: i have a columns in the datagrid which is binded to database. at the column footer.. i want to display another column.
I have repeater control and price fileds inside it i want to have a sum of all prices row on footer of repeater.
View 1 RepliesHow to access database values in footer template of repeater control in ASP.Net,C#. My Code is given below:
<asp:Repeater ID="rptrMaintenance" runat="server" OnItemDataBound="rptrMaintenance_DataBinding" >
<HeaderTemplate>
<table width="100%" cellpadding="0" cellspacing="0" valign="top">
[Code]....
my page contains gridviews, textboxes, comboboxes... : one of the gridview is hidden; the user needs to press a button to make it visible (it is inside a panel that contains a vertical scroll, and have a header and a footer, and this last panel is contained in an update panel).
i want to make the header and footer fixed while scrolling. i need this to work in ie and in firefox the latest versions.
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]...
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)
I have a repeater control having columns in it.When I bind the control to a data source then some of the columns become empty when there is no data associated with it.I want to hide the column if there is no data associated with it.I was trying to implement a solution given in this thread:
[URL]
However,I am not sure how to write the logic for hiding and showing the placeholder.I have written some code for the same but that clearly doesn't work.The following is the .aspx as well as the code behind which I am using:
[Code]....
I have a listview and in each there is a dropdownlist and a textbox. The textbox is invisible. When I change a value on the ddl it fires the SelectedIndexChangedMethod. In here, if the ddl is certain value I want to show the textbox thats on the same row. How do I grab the textbox from inside this method?
Code:
<asp:ListView ID="lvBillingQueue" runat="server" OnItemDataBound="lvBillingQueue_ItemDataBound"
OnPagePropertiesChanging="lvBillingQueue_PagePropertiesChanging" DataKeyNames="ID">
<LayoutTemplate>
<table width="100%" cellspacing="1" cellpadding="3" border="0">
[Code]....
With ref. to this post, [URL]
I have placed a dropdown list in Gridview footer, now i want to access the dropdown selected indeex changed event as below. But i'm not able to access the event.
protected void ddlCatg_SelectedIndexChanged(object sender, EventArgs e)
{
DropDownList ddlCategories = grvExpenses.FooterRow.FindControl("ddlCatg") as DropDownList;
DropDownList ddlExpenseSubCategories = grvExpenses.FooterRow.FindControl("ddlSubCatg") as DropDownList;
ddlExpenseSubCategories.Items.Clear();
[CODE]..
i have a TreeView inside a Repeater, i am not sure how to get the OnSelectedNodeChanged item ie
protected void tvAssets_Change(object sender, EventArgs e)
{
selectedItemId = ???
}
I have a Repeater cotnrol inside GridView row. I have a one object data source for gridview and one one object data source for repeater control.The select parametar for object data source for Repeater control is the Gridview data key for that row. I set this parametar each time GirdView row is created,and it works fine only when GirdView page size is set to one. When it is set to more that one data bound to repeater is the same for each row. It is from the last row.
View 5 RepliesI have a nested repeater, I want to hide label control in child repeater if its empty.
View 1 Replies