Forms Data Controls :: Nested ListViews With Inner DataPagers — Bug?
Oct 13, 2010
I suddenly met a problem with nested ListViews with custom DataSources and DataPagers per each inner item.The original task looks like this. But for the independence from the data sources, I have made an essential example:
Markup:
[Code]....
Code-behind:
[Code]....
Well, the result is discouraging! The DataPagers don't work as appropriate:Try to go to the second group of pages (ex, page #6) manually, and then click on page #7 at the same Pager. You will accidentally appear at page #3!While at the same #6 page, click on page #10. Nothing will happen!Next/Last buttons not work at all!Previous button acts the same as First button!What could be the reason of such a strange DataPagers behavior?
Or, is there the better way to create nested ListViews each with it's own paging?
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Jan 1, 2010
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Jan 28, 2011
I am upgrading a website project from asp.net 3.5 to 4.0. I went through the upgrade wizard and site compiled and built fine. But immediately I have encountetred a problem.I have 3 nested ListViews all using the ItemCommand event. Under 4.0 once the ItemCommand event has fired on the inner ListView it then bubbles up and fires on the parent and finally the grandparent.This is a change in behaviour from 3.5 where only the inner ListView event fires. While I can code round this I am worried about these subtly changes between the two versions.
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Sep 16, 2010
I am having a problem with finding the innermost ListView of a triple nested ListView. The middle ListView has a LinkButton whose event is handled by the outermost's ItemCommand. In the ItemCommand I want to find the third, innermost ListView and set its datasource. How can I find it?
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Aug 20, 2010
I am a longtime .NET developer but for big applications and services. This is my first asp.net project and I have chosen MVC. I have a need for nesting a ListView within a ListView. In this simple catalog app, I have EF 4 Entities that are Categories, SubCategories, ItemTypes, and Items.
My goal is to display a 5 column layout of SubCategories with their ItemTypes below them in a ViewPage. I did just fine with it done out in C# as server directives such as:
[Code]....
But now I would like to do it with nested listviews and I am having trouble with binding in the inner listview. Here is what I have so far:
[Code]....
The bolded line is bogus, of course. The listview won't accept a declarative datasource in this situation. How do I bind to the ItemTypes of the outer SubCategory?Also, I understand there is no code-behind file and I accept that this is because all logic should be in the controller. But does that leave me with the inline binding shown above for the outer listview?
<%
SubcatList.DataSource = Model.SubCategory;
SubcatList.DataBind();
%>
Or is there a more elegant way that doesn't involve an inline server directive?
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Apr 28, 2010
Could someone please point me to a tutorial that explains how to add new records in the ListViews EmptyDataTemplate
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Jan 21, 2011
I want to display 2 levels of listview, where outer listview has a datapager with 1 inner listview per page. The code is:
[Code]....
Then I bound outer listview with data in page_load(), which will invoke ExerciseBound(). It work fine for 1st page. The code is:
[Code]....
When I click on 2nd page, it will invoke ChangeExercise(). The code is:
[Code]....
Suppose it will invoke ExerciseBound() again and display 2nd listviewitem, but it fails to invoke ExerciseBound(). I change ChangeExercise() to
[Code]....
But PagePropertiesChangingEventArgs does not contain ListViewDataItem. Any thought? Is there a way to save ListViewDataItem in ExerciseBound() so that it can be accessed in ChangeExercise()? Or is there other way to access ListViewDataItem from ListView class directly?
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Mar 23, 2010
I have around 5 SQL queries that are returning datasets to my VB.NET application, the queries could be any number not just 5. I have a listview already on the page and all the queries will return the same exact data types (just different numbers). How can I create a listview in the code behind for each one? Or what would be my other options to load up all the results
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Jun 17, 2010
Is there a better, cleaner way to do this in ASP.NET 2.0?
An ASP.NET 2.0 page displays a datalist of records. Each record can have many dates, so the dates are in a nested gridview (I chose a gridview over a datalist here because we want to be able to delete a date and this is easier done in a gridview). The parent record can never be deleted.
The display works fine: the nested gridview gets its datasource during the parent datalist's OnItemDataBound event.
The problem: the nested gridview's delete function. The date gets deleted without a problem (handled in the OnRowDeleting event), but somehow the redisplay is untying all the other nested gridviews from their datasources. The delete does not appear to cause a page postback, so I don't know how the other nested gridviews are losing their datasources.
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Mar 1, 2011
I'm trying to create a nested gridview, but I'm stuck at the editing/deleting part of the nested gridview. (Below is my code).The nested gridviews are filling out nice, I've set the DeleteParameter in the SQLDataSource, but I'm still getting this error when trying to delete a criteria: 'The Gridview 'gvCriteria' fired event RowDeleting which wasn't handled.'I've tried to create a method 'gvCriteria_RowDeleting', but that didn't seem to work out.Someone who can give me a piece of advice? Would it be possible to fill the gridview without using gvDomain_rowDataBound? Dries
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And the C# behind:
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Feb 22, 2011
Objective:
Have the MultiView1 display only if Frieght values exceed 15.50. If check box is checked, retreive the row values of the Gridview1 and Gridview2 to perform a task.There will be two check boxes. One will be conditionally hidden. Each check box has a different function.
Example: Send an email notifying this entry has been flagged. I am using Visual Studio 2005 with ASP.NET 2 due to availability of resource. I have checked out numerous sites without finding the specific answer.
For example:
[URL]
The following a simplified representative example of what I am trying to accoumplish. It uses the Northwind.mdb access database with just the Customers and Orders table.
[Code]....
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[Code]....
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Dec 5, 2013
In Nested Grid, we get a '+' sign. The problem is that '+' sign appears all times, even if there are no child records for that row. 1. Can we enable/disable OR Hide/Unhide '+' sign. depending on if child rows exits.2. OR alteast we can put some bgcolor indicating to user that this record do have child rows. Without any indicator user may feel quite annoying to click on '+' sign and nothing happens.
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Apr 27, 2016
I want 4 listviews displayed as follows:-
Listview1 Listview2
Listview3 Listview4
I want two on the top and 2 on the bottom inline with the top ones, I use float left and float right for listbox 1 and listbox 2, but using this on 3 and 4 gets them all on same horizontal line if room, I think to use float for listview 3 and listview 4, needs a new parent to align themselves just under the first two, but do not know how to do that ....
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Feb 16, 2011
i am unavble to update the data in nested data lists in asp.net, if any one have the code
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Aug 2, 2010
I have a GridView, with a DropDownList as one of the Columns. I can get the SelectedIndexChanged method to trigger - but I cannot figure out how to get other Data regarding which row this triggered on i.e. if I could get the value in the ID column (DocID below), that would be great. My code is a bit too long, so I am just posting snippets. In the *.aspx file I have:
[Code]....
In the *.aspx.cs File:
[Code]....
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Jan 11, 2010
I ran into this kind of situation many times without a nice solution. Binding a data source to a gridview and one of the column require nested query. Is it possible to have a callback function other than Eval()?
something like CallbackFunc(Eval("SomeField"));
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Nov 24, 2010
My requirement is i want to bind data to gridview2 which is placed in gridview1..Iam using EDM objects to refer database...So for Gridview1 Iam getting out put...now how to bind to gridview2...For gridview1 I binded the data which is in onetable...And for gridview2 i want to bind MENU table data...so how can i bind the data...
this is the gridview2..in gridview1 row.
[Code]....
I also tried using FindControl() but iam not able to proceed further.
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Feb 23, 2010
I am having my first go at a nested gridview within a gridview. I have successfully loaded the data and it displays fine. Within the child gridview I have two textboxes that the customer can change. I also have an Save button. When the customer selects the save button the RowCommand for the child grid executes as it should. However I am unable to figure out how to access the two textboxes.
In the past I have got the row index from e.CommandArgument, established the correct GridViewRow using the gridview ID and the row index, and then used findcontrol to get the textbox
int index =
Convert.ToInt32(e.CommandArgument);
GridViewRow row = gvGridView.Rows[index];
TextBox txtName = row.FindControl("txtName")
as TextBox;
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Oct 7, 2010
I have a complicated report that nests six deep and so really hits the database hard. I want to use SqlDataReaders NOT DataAdapters and DataSets because I don't want big tables in memory.
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Jan 7, 2011
I want to develop an Nth Level DataList/DataGrid. I don't want to use TreeView Control.
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Jan 18, 2011
I have a page where there are two nested gridview, I have a column in the child gridview that uses a function to display the data.This function uses the id of the id of the father and son as parameters. I tried the code below, but does not work ...
[i]
<asp:GridView ID="gvParent" runat="server" AutoGenerateColumns="False" OnPageIndexChanging="gvParent_PageIndexChanging" AllowPaging="true" OnRowDataBound="gvParent_RowDataBound">
<Columns>
<asp:BoundField DataField="ParentId" HeaderText="ParentId"></asp:BoundField>
<asp:TemplateField HeaderText="Childrens">
<ItemTemplate>
<asp:GridView runat="server" ID="gvChildren" AutoGenerateColumns="false" OnRowDataBound="gvChildren_RowDataBound">
<Columns>
<asp:BoundField DataField="ChildId" HeaderText="ChildId"></asp:BoundField>
<asp:TemplateField HeaderText="MyFun">
<ItemTemplate>
[b]<%#MyFun(Eval("ParentId"),Eval("ChildId"))%>[/b]
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>[/i][Edit by="mtugnoli" on="18 gennaio 2011 16.29"][/Edit]
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Sep 27, 2010
fetch data from Nested gridview checkbox on Click button event which is present outside the gridview. I did try by creating an object of child gridview on button1_click but cannot fill the value from Gridview2 into my int i. Below mentioned is the Code i am using. The database I am using is Oracle. ==== Code =====
protected void Button1_Click(object sender, EventArgs e)
{
OracleConnection con = new OracleConnection();
[code]...
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Dec 9, 2010
I wanted to have 03 grid view nested in one another and to be able to perform
Insert
Update
Delete
on each of the grid view. Is it possible in Asp.Net.
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May 25, 2010
I'm try to create a nested listview with the following display:
Category 1
--Board 1
--Board 2
Category 2
--Board 1
--Board 2
--Board 3
Here is my code so far:
[Code]....
The Data is from a SQL Data Source:
[Code]....
However I'm not sure what to set the inner listview's DataSourceID to as I need to display just the boards in that category.
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Feb 5, 2010
I have a gridview (gvNested) nested inside another gridview (gvParent). I want to get the selected value of the nested gridview, but keep getting the classic 'object reference not set to an instance' error. I thought that this would work
[Code]....
Where gv.SelectedValue would return the information I needed.
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