Silverlight Grid Binding - Dataset/Datatable To List?

Aug 10, 2010

We are in the process of migrating our current asp.net gridviews to silverlight grids. The challenge that I am facing here is that in the gridview, the grid is bind to a dataset/datatable. But in silverlight, I do not have dataset/datatable available in the silverlight class. So only option is to create a Webservice and convert the dataset that I am currently getting from business layer to a class that imlements IList<> (unless there are any other ways). Now to convert this dataset to Ilist, I have to loop through the dataset to load the List. In my current dataset I have almost 10,000 records or even more in some cases. So the response time will be really slow.Are there anyways to

1) Load the List from dataset directly without looping through ?

2) Fetch the data from database directly to a List without having loading the dataset ?

View 7 Replies


Similar Messages:

Sort The Datatable After Binding The Dataset?

Apr 16, 2010

How to Sort The datatable in asp.net. after binding the dataset values i have stored into one table how can i sort the values of the dataset in asp.net with C#

View 4 Replies

Binding Datatable To Grid View?

Jan 4, 2010

I have the following code

Imports System.Data
Partial Class Students_AddWishes
Inherits System.Web.UI.Page
Public dt As New DataTable
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
dt.Columns.Add("ID", System.Type.GetType("System.Int32"))
dt.Columns.Add("univirsity", System.Type.GetType("System.Int32"))
dt.Columns.Add("major", System.Type.GetType("System.Int32"))
End Sub
Protected Sub btnAdd_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnAdd.Click
Dim row1 As DataRow = dt.NewRow()
row1("ID") = dt.Rows.Count + 1
row1("univirsity") = ddlUnivs.SelectedValue
row1("major") = ddlMajors.SelectedValue
dt.Rows.Add(row1)
GridView1.DataSource = dt
GridView1.DataBind()
End Sub
End Class

the problem is it shows only one row or record. How to make it shows many records?

View 2 Replies

DataSource Controls :: How To Choose Default DataTable From DataSet For Binding With A DataGrid

Dec 13, 2010

I have a DataSet with multiple DataTables and I use an ObjectDataDataSource to bind my DataGrid to it. One of my tables is correctly displayed in the grid. My problem is, that the grid displays the wrong table.

My tables are related to each other - I make use of the "relation" objects in VS Studio 2010. My ObjectDataSource points to a class with a select method. The DataSet contains several DataTables (e.g. "Variables" and "Components").

[Code]....

How can I configure the DataSet to display the table "Variables" by default?

View 1 Replies

Forms Data Controls :: Binding Datatable To Grid View Based On A Return From A Tableadapter?

Feb 17, 2010

I have no clue what I'm doing wrong here, but I wanted to create a grid view based on a return from a tableadapter.

[Code]....

[Code]....

Also, maybe I should be going about this another way as I wanted to add a drop down to each record and a link to each record.On pointers on how I should do this would be great too.

View 6 Replies

C# - Using YUI Grid - Dataset Contains Some Special Character - Bind Dataset Into Grid But Its Not Displayed In Grid?

May 19, 2010

Problem in YUI:I am using YUI grid,my dataset contains some special character.i bind my dataset into the grid,but its not displayed in my grid? how to solve this

View 1 Replies

How To Extract Datatable Or DataSet From Linq Query Or List

Jun 13, 2010

how to extract DataTable or DataSet from Linq Query or List. e.g I have linq query like this

MyDBpDataContext dcSp = new MyDBpDataContext();
dcSp.myProgrammSP().ToList();

I wrote an Sp which sends a Table as result and I have code which is already using DataTable So I want to convert this result in DataTable.

View 1 Replies

Error On Binding The Grid With A List?

Jan 20, 2011

List<business.clspluginsprp> objprp = new List<business.clspluginsprp>();
business.clsplugins obj = new business.clsplugins();
for (Int32 i = 0; i < k.Length; i++)

[code]...

View 2 Replies

Forms Data Controls :: Binding Dropdown List Using Dataset Or Datareader?

Jan 25, 2011

- i have two drop down lists- ddl_SelectClient, ddl_SelectApplication

- when a client is selected in ddl_SelectClient, i have to show the list of the clients applications in ddl_SelectApplication

- i have written the below code in the ddl_SelectClient_SelectedIndexChanged routine to do the same

- i am getting the error("Unable to evaluate expression because the code is optimized or a native frame is on top of the call stack") in the catch block when the ddl_SelectApplication gets binded

[Code]....

View 3 Replies

How To Copy Data From Datatable To Dataset.datatable

Oct 31, 2010

how to copy data from datatable to table in dataset i ry this but its readonly property

ds.datatable1=newdt.copy

View 1 Replies

C# - Use Dataset Or Datatable?

Dec 17, 2010

If I need to fetch one whole column from Table1 in the DB, should I fetch it using datatable or dataset? I can do both ways. I mean ok I should use Datatable. Why is that? What would happen if I use Dataset? ok that's what I wanted to know. So there's memory issue. I mean whatever I use be it Datatable or Dataset, both will be fetching only ONE column frommy table in DB. How is Dateset's gonna use more memory then?

View 3 Replies

Dataset Vs. Returning A Datatable

Aug 15, 2010

I have created alot of stored procedures in my application that return the result of a query in a datatable object. I never use a dataset. Why would I ever use a dataset over simply returning the result of a query as a datatable object?

View 3 Replies

ADO.NET :: Number Of Datatable In One Dataset Can Contain?

Aug 6, 2010

i have one question for my project. i am fetching all users data in one dataset, but each user will be in unique datatable to avoid no. of database connection i will fetch data in one single transaction no. of user are more than 10000 ..is it practical to store more than 10000 tables in one single dataset what will be then performance issue for the same, it will be the diffrent application for my project to generate this much of data. how many no. of table one dataset can contain in visual studio 2008 with 3.5 framework?

View 2 Replies

ADO.NET :: Delete A Row In Datatable Using Linq To Dataset

Aug 31, 2010

how can i delete a row in datatable using linq to dataset?

I have a dataset in my project, need to delete some rows filtered by ID

how can i do?

View 5 Replies

Web Forms :: Binding DataTable To Gridview?

Nov 8, 2010

I am trying to add many rows in the gridview by clicking a Add button in web form by takeing the value from the textbox then add it to gridview but i couldn't because it accept one row only so how can I let the gridview accept more than one row in every click to the button.

[Code]....

View 6 Replies

How To Populate Google Charts Using Dataset / Datatable

Feb 24, 2011

How to populate google charts using ASP.NET Dataset/Datatable

View 1 Replies

C# - How To Use SqlDataSource For Filling Combobox As Well As Datatable Or Dataset

Apr 30, 2010

I am trying to fetch a column value from a datasource when some value is selected from a dropdownlist on its change event.

[Code]....

Here I want to fetch any other column's value that is not binded to a ddlCityName from sqldatasource.

I have four columns in datasource i.e. name, id, address, phno.

I want to fetch an address of a person who selects some value from ddl.

View 1 Replies

ADO.NET :: How To Create A Datatable With 2 Datatables In Dataset Programmatically

Apr 1, 2011

I have 2 views in sql server and I create a dataset with those 2 views as datatables. Now I need to create a datatable and programmatically fill it with the other 2 datatables. Take the 2 datatable and create a third one in the dataset not create a third view in sql server.

View 2 Replies

Security :: Assigning Result To Dataset Or Datatable?

Jan 1, 2010

I am using membership functions like

Roles.GetAllRoles()

or

Membership.FindUsersByName();

I want to assign the result of these fucntions to a dataset or datatable and not directly to a GridView.

View 3 Replies

Data Controls :: Get Top N Rows From Datatable Or DataSet In C#?

Jan 19, 2012

I have a datatable with 50+ rows I want to get the Top 10 rows and display.

View 1 Replies

C# - Adding Columns And Mid Binding A Dataset For Gridview?

Jul 7, 2010

I am using subsonic in asp.net forms C# and I have an instance where I need to loop through a recordset and for each one call the Database to get specific information from a view about that record.

in this instance it is a venue, loop through and for each venue I show there spend and there budget, but I am at a loss as to how I can say use a gridview, execute more code on each row and then add more columns to that row.

just as an update i have been playing with the idea of something like this:

DataSet ds = new DataSet();
ds.Tables.Add(LinqToDataTable(club.All().Where(x => x.level == 1)));
ds.Tables.Add(LinqToDataTable(ViewBudgetSpend.All().Where(x => x.periodfrom == curperiod)));
DataRelation relation = new DataRelation("budgets",ds.Tables[0].Columns["clubId"],ds.Tables[1].Columns["clubid"]);
ds.Relations.Add(relation);
still working this out though.

View 1 Replies

How To Pass List Of Values To Silverlight

Sep 13, 2010

I want to pass the data from asp.net to silverlight.I tried for jquery to pass data from asp.net to silverlight.but it not working.

View 2 Replies

Web Forms :: Getting A Dropdownlist Populated When Binding To Datatable

Aug 10, 2010

I have 2 dropdown lists on a WebForm. One of them is populated in the page's Page_Load event. This oneworks fine with the following code.

[Code]....

Then, after a value is selected from this list and a date is selected from a DateTime picker, then I click a button which is supposed to populate the 2nd dropdownlist. In the debugger in the button's click event I can see that the dataset is being populated with data, but then the list is never populated after the DataBind() method is run. Here is code from the button's click event.

[Code]....

View 2 Replies

C# - How To Set A Gridview Column Width When Binding To A Datatable

Apr 29, 2010

I am binding a table to a gridview in asp.net as such

grdIssues.DataSource = mdtIssues;
grdIssues.DataBind();

The problem is I cannot then control the column width, asp.net seems to decided on it's own what width each column should be. Methods such as

grdIssues.Columns[0].ItemStyle.Width = 100;
grdIssues.Columns[1].ItemStyle.Width = 100;

don't work because the columns are created dynamically. I cannot believe there isn't a way to do this short of manually creating each column and filling each row.

View 3 Replies

C# - Binding A List Inside Of A List To A GridView

Dec 1, 2010

I have a class with all different kinds of data members, including a list of strings. When I bind the data to a GridView, I want to be able to separate out the list of strings into different columns in the GridView. These strings are more like flags, there is a max of 3 flags. The list could be empty, if no flags apply, or it could contain only one or two flags. How can I separate out these flags into different GridView columns? Do I need to do it in the OnRowDataBound event?

Current, my aspx code looks something like this. I want to be able to change the ImageUrl of the Image controls based on if the flag is raised or not.

<asp:TemplateField HeaderText="Tax" SortExpression="Tax"> [code]....

View 1 Replies







Copyrights 2005-15 www.BigResource.com, All rights reserved