Forms Data Controls :: Bind Linq (including Inner Joins) To GridView?
Mar 14, 2010Executed a linq query, and now needs to bind it to the gridview. here is code that doesn't bind anything currently:
[Code]....
Similar Messages:
C# - Linq Sum Columns Including Joins?
Mar 10, 2011I have two tables.[Table.Game] Columns are "PK_id" "username" and "couponID" [Table.Coupons] Columns are "PK_id" "CouponID" and "Points" The two columns "CouponID" are associated with eachother. Let say i have two rows with the user "harry" in [Table.Game] this person has two different couponID. In [Table.Coupons] this user "harry" has "CouponID" 1 and 2. Column "Points" have 10 and 20. To the question how do u sum this two different point values that have different "CouponIDs". This does work if i have only one "CouponId". But not when the user has 2 different CouponIDs. Values is 0
var points = (from p in linq.Coupons
join g in linq.games on p.couponID equals g.couponID
where g.username == username && g.couponID == p.couponID
select (int)p.win).Sum();
SQL Server :: Table Joins And Datasets To Bind The Gridview In Page
Mar 25, 2011I have a web service with a dataset and I need to fill a gridview in my web page with data from multiple tables (like 4). How can I retrieve data from my 4 tables and construct a datatable with a table adapter in the dataset? I need to create this in the web service to bind the gridview in my page. In SQL I create a view with the joins of the 4 tables and added the view to the dataset. It works fine, but for other windows in my web page I need to use like 8 trough 10 tables (just to retrieve one field of each one) and I don't know if making that huge joins is the more efficient way to retrieve data from the server. There is another way to make joins? (Make separate queries for each table and create one table in memory) How?
View 2 RepliesForms Data Controls :: How To Bind A GridView With LinQ With Automated Paging And Sorting
Mar 20, 2010on my WebApplication I have GridViews filled with a LinQ-Query. Like this
Dim teamA = (From t
In datacontext10.T_TEAM
Where t.group =
"A"
Order
By t.sort)
GridViewA.DataSource = teamA
GridViewA.DataBind()
Now I want do enable automated Sorting and Paging? How could that work? Could I use a ObjectDataSource? Which control could do that for me?
Forms Data Controls :: Gridview Delete Error With Linq And Bind Using Different Format?
Apr 12, 2010I have a gridview with linq and in the itemtemplate I have a column like this :
Bind("SUPERFICIE","{0:N00}")
If I display my gridview, I have this kind of value : 6'555
When I delete this row I have this error :
Failed to define one or more properties of type DS.MY_TABLE 6'555 is not a valid value for Decimal.
Apparently, when I use a format on bind, it change my values in my ds and I cannot delete my row!
I don't understand, because in my logic with the bind format I don't need to correct some formats for delete a row !
DataSource Controls :: Cross Context Joins In Linq?
Jun 21, 2010I have a requirement where i need to combine tables from two different datacontext. Does Cross context is allowed in Linq??
i wrote a linq query but its throwing error.
Forms Data Controls :: Hiding Few Columns Including Header In A Gridview?
Mar 3, 2010I have a gridview control which gets data from database. One of the column is a checkbox and based on the value of the checkbox, I need to display 2 more columns. Currently I am having 2 issues:
1. I am able to achieve this when OnDataBound event gets triggered. Basically I am checking the row state and type and if it is in Normal mode I check the status of the checkbox and based on the status I am setting the style on the columns I want to hide (columns contain checkboxes). But for some reason, I am not able to hide the header. The GridView shows the header but the text boxes which are in the columns are hidden.
2. During Edit mode, I have attached a javascript to the checkbox and when the status of the checkbox changes, it hide/unhides the columns, again header cannot be made hidden. Also, if I use the Visible property of the header, I can make the header invisibly (only using the code behind) but when javascript is invoked on the checkbox during edit mode, it cannot find the controls as they are not visible and hence does not do anything. Since TemplateField does not support style property I can't even set the style["display"].
ADO.NET :: Linq To Sql - Possible Optional Joins?
Nov 22, 2010Is it possible to do an optional join as follows?:
private void OptionalJoin(string phrase)
{
from t in db.Table
// (if phrase != string.Empty then) join t2 in db.Table2 on t.Id equals t2.Id
select t
}
Although I'm aware that I can copy/paste this and move the conditional logic outside the query, the query is ~200 lines and there are 4 different optional joins I would like to incorporate, so it would get messy and be difficult to maintain. I'm looking for a clean, streamlined way to do this.
Forms Data Controls :: Gridview Dynamically Including Ascx Controls And AJAX Modalpopup Extender?
Mar 18, 2011I have an issue with gridview and ascx's inside. Into the item template I'm dynamically loading ascx files depending on the row hiddenfield value. Ascx control is then "opened" in panel with modalpopup extender. The issue is ascx control with ceratin programming logic behind does not postback in this scenario.
Is there any workaround here?
Here's html snippet
[Code]....
DataSource Controls :: How To Select Data With Linq And Bind To A DDL
Jan 5, 2010I am trying to select data with Linq and bind to a DDL. The custid field allows duplicates in this table, but I only want unique values in the ddl. I tried the following code:
[Code]....
The use of "Select Customer.CustID", with or without the Distinct, causes this runtime error. CustID is a valid field in the table, and it shows up in intellinsense and compiles. If I just Select Customer, the error goes away, but Distinct doesn't know to look for distinct custid's.
DataBinding: 'System.String' does not contain a property with the name 'CustID'.
Linq - Traversing DataRelations In Gridview With ADO.NET - Get The Parent Row And Bind It To A Gridview?
Sep 29, 2010When one has a Gridview and two datatables and one wishes to get the parent row and bind it to a gridview, how would this be done?
View 1 RepliesC# - LINQ To Entity Framwework Multiple Joins With Multiple Dynamic Search Criteria?
Jul 2, 2010The gist of the problem is that we have an alumni table (one record per person) and also a couple of other tables (one to many) that have degree info and interest info. In a search screen in our app you can search for criteria that spans all three tables (there are actually more fields and tables than shown in the example below but I am trying to keep it simple).
The code below works (properly returns people without degrees for example) but still feels a little clunky or over-engineered to me. Are there easier ways to do this? NOTE: I have been through quite a few iterations/approaches to making the correct data be returned.
[code]....
Forms Data Controls :: Can Bind A Second Gridview Inside OnRowCommand Of The First Gridview
Feb 15, 2010I have a Gridview and on the OnRowCommand of that GridView I want to Bind the data for another Gridview, but everytime I do that nothing gets bound to the Second Gridview.
View 3 RepliesC# - Including Data From DropDownList Into Gridview?
Apr 22, 2010What I need to be able to do is create a field in my gridview that contains a link that passes two variables. One is pulled from within the gridviews datasource and the other needs to be pulled from a textbox control outside the gridview.
From what I've read so far you cannot use a hyperlinkfield for this as the datanavigateurlfields cannot be set to pull from anything but the gridview's data source.
What I attempted to do was create a template field where in the itemtemplate I called:
<a href="example.aspx?e=<%# Eval(ExampleList.SelectedItem.Value) %>">Test</a>
That comes back with an error like this:
DataBinding: 'System.Data.DataRowView' does not contain a property with the value 'TestData'
Forms Data Controls :: Bind Xml To GridView?
Aug 4, 2010bind this xml to the gridview.The requirement being:1) Display Item_Name, Item_ID, Item_SCode, Product_Info 2) Product_Info child nodes have be to visible under the GriddetailsView.I have my code snippet below:correct my code:
[Code]....
The xml is shown below:
[Code]....
ADO.NET :: LINQ To SQL - Multiple Joins With Multiple Conditions?
Jan 28, 2011I have some problems trying to query my database. The problem is that I'm not sure how to multiple join tables in my database.
tables to make it easier:
[code]....
What I'm supposed to do is to find all the teachers (predavac) who were teachers on the specific activity (aktivnost) and who had specific attendee (polaznik). The problem is I'm not sure how to do multiple joins on this one.
Forms Data Controls :: To Bind A XLS Or CSV File To A Gridview ?
Jan 3, 2011This is my code:
[Code]....
This is my connection string for the XLS:
[Code]....
The error returns on line 30:
oleda.Fill(ds, "Email");
What should i write in place of "Email" ?Is the connection string correct ?
What if i want to Bind the entire XLS file to the Gridview, instead of just the column Email ?
Forms Data Controls :: Bind A Gridview With A Datareader?
Apr 15, 2010I have bind a gridview with a datareader. Now i want the following functionality on it:
1- Row selection funcionality
2- Row Update functionality
3- Row Delete functionality
I know its quite easy when Gridview is bind with dataset but Is there any possibility to get it done through datareader object. If am looking to get the delete and update functionality down through store procedures that wound be called upon action.
Forms Data Controls :: How To Bind Top 10 Records To A Gridview
Feb 19, 2010I want to bind only the first 10 records from the dataset to a gridview.how to do this?
View 2 RepliesForms Data Controls :: How To Bind Gridview Using Datareader
Sep 14, 2010i want to bind agrid view using datareader
View 4 RepliesForms Data Controls :: Bind Gridview Using Pagemethods
Jan 11, 2010I am trying to use pagemethods using scriptmanager. i have managed to return dataset in xml format but not able to proceed how can i bind the data to gridview using pagemethods. here is my code.
[Code]....
here is my aspx page code
[Code]....
Forms Data Controls :: Bind GridView From MDX Query (VB.NET)?
Apr 20, 2010I am trying to bind a GridView to a MDX query using VB.NET. The MDX query is valid, as I am able to run it and get the desired results using the Microsoft Analysis Services MDX Sample Application - but I just can't figure out how to go about connecting to it in the VB code for my aspx page and then binding it to a GridView. I have been searching for a while now and keep hitting dead ends, and to be honest, a lot of what I have found has been over my head.
how to run a simple MDX query from VB.NET and bind it to a GridView?
Forms Data Controls :: Bind Image To Gridview?
Jan 11, 2011i have a gridview, i have one images folder. in the database i have image path.
using that path i want to bind those images to gridview. but images are not displaying.
my gridvew code is.
--------------------------
<
asp:GridView
ID="GV"
runat="server"
AutoGenerateColumns
="false"
>
<Columns
>
<asp:BoundField
HeaderText
="ID"
DataField
="eid"
/>
<asp:BoundField
HeaderText
="ENAME"
DataField
="ename"
/>
<asp:BoundField
HeaderText
="IMAGE PATH"
DataField
="image"
/>
<asp:TemplateField
HeaderText
="IMAGE">
<ItemTemplate
>
<asp:Label
ID="LblId"
runat="server"
Visible="false"
></asp:Label
>
<asp:Image
ID="Image1"
ImageUrl='<%# (string) FormatImageUrl( (string) Eval("image")) %>'
runat="server"
/>
</ItemTemplate>
</asp:TemplateField
>
</Columns
>
</asp:GridView
>
my aspx.cs code is
-----------------
public partial
class
ShowList : System.Web.UI.Page
{
protected
void Page_Load(object sender,
EventArgs e)
{
BindData();
}
protected
string FormatImageUrl(string image)
{
if (image !=
null && image.Length > 0)
{
return image;
}
else
return
null;
}
private
void BindData()
{
DataSet ds =
new
DataSet();
ds = BusinessLogic.FetchDetails();
GV.DataSource = ds;
GV.DataBind();
}
}
when ever i debug the program dataset contains all the images. but those are not binded to gridvew.
Forms Data Controls :: Bind A CSV File To GridView
Jun 24, 2010I am trying to bind a CSV file that is stored in my application to a gridview but I keep getting an odd error Heres my code:
[Code]....
The error I am getting is as follows: 'C:UsersTRX-T800DocumentsVisual Studio 2008WebSitesTRXAllianceCSVcustomers.csv' is not a valid path. Make sure that the path name is spelled correctly and that you are connected to the server on which the file resides. However the path is exatly right, I can copy and paste that and go directly to the csv.
Forms Data Controls :: Bind GridView URL From Datatable?
Jul 21, 2010I have a data table, in one of the column, I will have this data, I will bind the data table to a grid view. I was hoping that this column change to a hyperlink. But, it was display the entire text.
<A HREF="page_url">Remark(s)</A>
When I view the page source code, I saw this:
<A HREF="page_url;Remark(s)</A>
How to correct this?