Forms Data Controls :: Direction With 1 To Many Relationship Displaying The Data
Dec 21, 2010
I am looking for some feedback on how to display data from a database where there is a 1 to many relationship. For example table A holds customer data such as name, address and table B will contain information on products that they have ordered. A customer can have multiple products ordered. How would you display the records as one record in a datalist or another control as oppose to the number of records based upon what they have ordered. Would this be accomplish by nesting the datalist or the control used or by the SQL statement?
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Dec 28, 2010
I want to display details STRONGLY TYPE In a view this would be done as normal through the list, hiting the details link. however a table of notes is connected to the main table of info. i want to us the id of the main table item to list all the notes that have been entered about the record in the main table. how do i do this
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May 24, 2010
I have data coming from two tables with a foreign key relationship - one User table containing users of the web application, and one Page table containing details about pages visited by each user.I would like to be able to view these data in a gridview or the like on a page. It's easy enough to just show the User table data like so (I'm using the Entity Framework and LINQ):
[Code]....
But how can I show the Page details? I'm not bent on any particular way of showing it, but the only idea I've been able to come up with is to have a dropdown list for each user in a column. But I can't figure out how to get the page data into such a dropdown list. The tables are associated with the primary/foreign key UserID.The closest I've come to finding something similar to this is this for Linq2SQL: http://weblogs.asp.net/scottgu/archive/2007/07/16/linq-to-sql-part-5-binding-ui-using-the-asp-linqdatasource-control.aspx , and this using more traditional data access: ttp://www.highoncoding.com/Articles/169_DropDownList_Inside_GridView__Method_1_.aspx . Either way, regardless of data access technology, I can't relate these solutions to my example and get it to work
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May 7, 2015
According to thread [URL] ....
I used pagination for datalist and pagination look like below:
Last Previous ... 4 3 2 1 Next First
it is work correctly I want right to left pagination but problem is that here in below code:
private void PopulatePager(int recordCount, int currentPage) {
double dblPageCount = (double)((decimal)recordCount / (decimal)PageSize);
int pageCount = (int)Math.Ceiling(dblPageCount);
List<PagerPage> pages = new List<PagerPage>();
if (pageCount > 0) {
pages.Add(new PagerPage("Last", pageCount.ToString(), currentPage < pageCount, "button"));
[Code] .....
when I changed "first" "Next" "previous" "Last" to persian character:"First='اولین'" "Next='بعدی'" "previous='قبلی'" "Last='آخرین'"
again page number direction changed to left to right:
1 2 3 4 ...
private void PopulatePager(int recordCount, int currentPage) {
double dblPageCount = (double)((decimal)recordCount / (decimal)PageSize);
int pageCount = (int)Math.Ceiling(dblPageCount);
List<PagerPage> pages = new List<PagerPage>();
if (pageCount > 0) {
pages.Add(new PagerPage("آخرین", pageCount.ToString(), currentPage < pageCount, "button"));
[Code] ....
why this happen? Above code worked correctly just when text be in english character when I change to persian or this character "<< < >> >" it changed number direction. what should I do?
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Mar 26, 2016
I have an excel sheet which has several parent records/rows and every parent row/record has several child sub-records under it. I have a field called ID which is of the type String as it contains a mixture of characters and numbers and is common for both parent and child records. How do I store the parent and child records in separate database tables, retrieve them and display them in a nested gridview?
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Jul 2, 2010
I am using a Datalist and a Listview in a Master/Detail relationship. Each time a DataList item is bound, a Listview is loaded dynamically. I have provided the relevant Layout and Item templates. It is worked fine for one item. But for more than one item, it will raise the following error: "An item placeholder must be specified on ListView 'ItemListView'. Specify an item placeholder by setting a control's ID property to "MyLayout$itemPlaceholder". The item placeholder control must also specify runat="server".
Despite having set up the item placeholder.
Here is the code-behind:
protected void NodeDataList_ItemDataBound(object sender, DataListItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)[code].....
The Layout template:<asp:PlaceHolder ID="itemPlaceholder" runat="server"></asp:PlaceHolder>
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Aug 5, 2010
I currently have a datagrid that has no columns, I generate a few column types on the fly using a column prefix. This enables a new dataset to generate a new datagrid, all is well, except...
1) Generating new datasets is beyond the skill of the admin, I could offer a set of options and dynamically create an SQL query/view to be saved in a datatable and retrieved by the querystring, but I'm not sure if there is a better way when I consider my next issue.
2) I want to be able to create an edit/detail page that is generated by a new query returning chosen fields, aliases for the field labels and field drop down options retrieved from the existing database and then positioning of the fields on the page set by the admin then stored as either field & coordinates or ? I'm hoping that there is a way to enable an admin to position the fields & controls either by selecing XY coordinates, then save it off as XML or similar to be reused as a template.
I'm trying not to re-invent the wheel and also keep my billable programming time to a minimum, but I'm willing to spend as much time researching & learning the techniques.
[code]...
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Jun 4, 2010
I've been wracking my brains for a while. I have a master record that I want to add children to. In a database it's a one to many relationship with a foreign key in the child table.
I have a formview that I want to use to fill in all the master record info, and choose the child info from a dropdownlist, and click an add button, and have the add button add the child info to some control on a page. Then when the user clicks insert, the formview has an ItemInserting EventHandler that will handle all the logic for inserting the master, grabbing its primary Key.
So, I know what to do, I'm just not sure of what control to use, or what memory object etc., that I want to store the child info in until the master record gets created.
I'm sure this has been done a million times, but for all my searching, I couldn't find anything to help me. Does anybody have some advice or can anybody point me to an internet resource where this has been hashed out?
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Apr 20, 2010
I have an insert that uses an object data source with out the direction property set and it works fine. I noticed the direction property though and wondered if I should use it.Should the direction property for the parameters of an object data source be used with a simple CRUD operations?
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Jun 16, 2010
i have master table and it has related record in the child record
there are about four records in the detail table containing master id
how can i get the data group by master id ?? i want a sing row record
suppose:
order 1: item1 : item :2 item 3: item 4 in this shape
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Jul 18, 2010
Moderators Note: THIS ISSUE IS BIG FOR ME AND EVEN IF POSSIBLE, GET THE REPLY FROM THE DESIGNER OF GRIDVIEW. I have been looking for him for long. I am really fed up with reviewing a good lot of web pages on how we can possibly customize the gridview to enable sorting and paging. So many sites have listed out a lot of information and so many guidances. But the problem is that one works out fine and the other is a burden. I really feel bad about being given the job of customizing this kind of a gridview which has no user friendly approach to it. Also, this control is rendered without the pager links inside the <tfoot> tag. I have tried the Pear Pager in php. It is that good and easy to use and compared to that, the gridview in asp.net is the worst ever control i have ever tried so far.
1. i can use the images to indicate the sorting direction
2. I can have the custom pager like
[code]
<<Previous 1 2 3 .. 7 Next >>.
[/code]
When i click the next when i am viewing the page at 3 , the pager links should change as
[code]
<<Previous 2 3 4 .. 7 Next >>
[/code]
Kindly look into this type of requirement and firstly tell me whether this is possible with the gridview control. I would like this request even to be escalated to the designers of the gridview control also, so that Microsoft comes out with a reply THAT WORKS and not the kind of stuff like surfing through a lot of links and pages and finally wasting a lot of days precious time and still breaking the head with this useless control. I have spent a lot of time in searching for a perfect way. Not writing a code that is non-standard. I am really serious b'cos I have spent weeks in customizing this control. If I dont get a solid reply atleast now, I am going to generate all the output by HTML content by custom coding.
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Mar 4, 2010
I have two tables - dt(Mods) and dt(Mods2) - I am trying to create a relationship between them. So dt(mods) has department, category and item columns dt(mods2) has parentDept, Parentcategory and parentItems Now I need add them to a dataset with a relationship key - Something like this but with three cloumns
Dim ParentCol As New DataColumn, ChildCol As New DataColumn
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Nov 3, 2010
I am trying to debug one of the project in which i need to show the data for one of the particular cell in two lines.
This Repeator control Exists in a user control and aspx is calling this User control for displaying the data.
Here is how my code looks:
[Code]....
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Dec 4, 2010
I'm quite confused about how to implement a many-to-many relationship and my domain model. Let's say I'm creating a recipe box web application and I have three tables called Category (categoryID, categoryName), RecipeCategory (categoryID, recipeID), and Recipes (recipeID, recipeName, recipeDescription). If I were to present this information as an ASP.NET application and wanted to insert a new recipe and category, am I responsible for writing the logic to insert the information in the RecipeCategory table OR is it possible to set RecipeCategory.categoryID and RecipeCategory.recipeID automatically with default values based on newly inserted records in the related tables? If I'm responsible for writing the logic to insert values in RecipeCategory.categoryID and RecipeCategory.recipeID is that a trigger? What's the best way of implementing this?
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Jul 31, 2010
i have 2 dropdownlist and gridview. Im trying to make a link after displaying the relational data in the gridview like below But how can i get the value and combine with the link
[Code]....
this is the all of my code
[Code]....
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Oct 31, 2010
I have a datagrid which pulls data from a single database table to display it. However, this database table also contains information on the thumbnail URL for each record, and I would like to display the thumbnails for each record in the 1st column of the datagrid.
At present I have added the following to my datagrid:
[Code]....
So I presume the main challenge now is to set the Thumbnail.ImageUrl property to the correct file path in the VB.NET code. But how do I do this for each record? I am using a function to retrieve data for the gridview, which is based on the following:
[Code]....
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Feb 9, 2010
I have created a web service and successfully displayed the data in a TextBox within another Project.
However, I have modified my web service so the data returned will return multiple enteries for the data rather than a singular value.
I would like to display all output fields from my web service into a GridView.
Is it possible to do this without modifying my GridView to display a ListView output etc...
Basically, I just want to place each field into a Gridview.
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Nov 30, 2010
is there a possibility to do the following:
I have a GridView which has a button in each row. On click event I want to open a new window displaying the xml data of the row.
I tried to this with the following code in the RowCommand - event:
var doc = new XmlDocument();
doc.LoadXml(content);
Response.ContentType = "text/xml";
Response.ContentEncoding = System.Text.Encoding.UTF8;
doc.Save(context.Response.Output);
This always generates a script error:
Sys.WebForms.PageRequestManagerParserErrorException: The message received from the server could not be parsed.
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Mar 24, 2010
I have a Table (in SQL Server) that is being updated roughly every minute or so with new records being inserted from various sources. The number of records inserted in this duration varies from a few records up to dozens of new records. I am using an update panel to rebind my data every minute to keep the GridView current. Now that I have the data refreshing I am looking for a better solution than reloading the data every minute. how to best keep my GridView up to date? Here is what I would like to accomplish:
1. Load the GridView and refresh the contents every minute. (60 second intervals)
2. When the GridView is refreshed every minute I would like to append only the new records to the existing grid, rather than bringing back the entire result set with each round trip to the database.
3. I would like a visual cue to identify the rows that have been inserted into the GridView. If new rows were to flash/flicker with a background color (yellow) that would be ideal.
Am I even using the correct control for displaying real time data, or are their other options? I essentially am looking to find the preferred method of displaying data that is being updated in real time in a web application. I'm hoping there is a solution involving AJAX but I haven't been able to find much on The Google. I am open to changing anything and everything about my approach -- this is largely a learning exercise. For testing purposes I am currently using LinqDataSource in conjunction with a GridView in an UpdatePanel being refreshed by a Timer control every 60 seconds. Informational: I have also started playing with the [URL] in place of the Timer control. However, for the purposes of this example I would be content to achieve the desired behavior using native controls as I have described them above.
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Feb 4, 2011
I am doing a search function where when user enters specific value (either by keying product name or product code) into textbox, data will be displayed using gridview.
However i have problems displaying it in gridview.
Below is my code:
[code]...
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Jan 10, 2011
here I can find some info on how to display data from my MSSQL database in something like old style tables (table,<tr>,<td>) becouse I used to done it like this in classic asp but i had a formula for calculating where to put tr or td and it becomed very confused, not to mention displaying gruped records like 10 on each page...I tried gridview in VisualStudio but I can not find any info how to use sql in it so I think it can not help me becouse it is to much predefined and I do not know where I can change code for it like what data source to use, sql and other important thing
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Jul 15, 2010
I am currently trying to figure out the best way to handle a data formatting issue. I have a stored procedure that pulls back basically all the data I need, but using a gridview doesn't really give me what I need.
For example...currently the gridview displays data like:
Date1 ProjectCode1 Hours ApproveChkBox
Date1 ProjectCode2 Hours ApproveChkBox
Date1 ProjectCode3 Hours ApproveChkBox
Date2 ProjectCode1 Hours ApproveChkBox
...
I would like to be able to display the information like:
[code]....
Is there anyway to do this using a nested gridview? Or is there a proper way to display this type of format?
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Aug 23, 2010
I have a problem displaying data in a Grid View control when set a row to visible = false when a certain condition is true.
For example, if a DataRowData value has a condition set to true (custom in table) I set the visible property to false, so the data row will not be visible at run time.
The problem is that I'm using paging (10 rows per page) and if 8 of those rows fall into the true condition that won't show the row, that grid view page will only show two rows of data in page 1. The worst scenario is that if I go to page 2 of the grid view and all the rows (10) fall into the true condition, that grid view page will not show any data at all.
How can I show 10 rows of data at all times in a gridview? In other words, I would like to just show the visible rows at all times.
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Nov 9, 2010
I have a Transport Detaisl in DB , i want to dispay data on gridview with marquee scrolling up. Cabs are scheduled for drop every hour. So if drop is at 7pm i hav to dispaly on data of that hour from 6:30 to 7:15 later after 7:15 i have to display next hour data ie 8:00 pm drop data. I am able to get scrollin g data on gridview but how to schedlue it to scroll for such timings
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Nov 27, 2010
In one of my application, I have around 2000 records which i am displaying in gridview with normal paging.
Now I want to change this paging facility and would like to show a "more" button at the footer(just like [URL] has). The moment user clicks it, the next set of data will be retreived. This will go on till all the records are fetched.
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