I have a json service method that returns an object with two properties. The first property is called Rows and contains the list of objects I want to bind to the dataview. The second property is TotalRowCount. It is a paging method. How can I tell the DataView to bind to the Rows property? This is what I have so far...
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I need to expose a Web service which will provide an array/DataTable of 20 rows (average) of data - certainly no more than 100 rows would ever be needed. The largest item in these rows would be a date.The Web service would be called by a separate Web site in order to display these 20 (approx.) rows in a GridView/DataView. I would have to be able to dynamically choose which domain to go to and find the Web service.I would possibly have to secure the Web service with a password but this is not vital (possibly with soap headers over https).
My question is what technologies should I use to create this Web service? I know enough about .asmx Web services to struggle through and get this working, but should I get a book on WCF and learn that instead?I use AJAX and jQuery so am also wondering if I should be using one of those client side, to call the Web service and populate the grid?
How to select top n rows from a datatable/dataview in asp.net.currently I am using the following code by passing the table and number of rows to get the records but is there a better way.
public DataTable SelectTopDataRow(DataTable dt, int count)
{
DataTable dtn = dt.Clone();
for (int i = 0; i < count; i++)
{
dtn.ImportRow(dt.Rows[i]);
}
return dtn;
}
I want to check that the row index I specify is below the row count so it doesn't throw the error
Index 2 is either negative or above rows count.
how would I achieve this with my code?
Using connection As New SqlConnection(connStr)
Dim command As New SqlCommand
command.Connection = connection
connection.Open()
Dim a As New SqlDataAdapter("SELECT top(3) name, (SELECT TOP (1) ImageId FROM Images WHERE(productid = products.Id)) AS imageId FROM Products WHERE beginnerdiscount = '1' ORDER BY Dateadded", connection)
Dim s As New DataSet()......
How to display Top 10 Records using DataView Or DataSet, Below is my code. I am using .net 2.0 and i don't want to Modified in my SQL query.
Dim ds As New DataSet
ds = tv.GetSearchLatestEvtHosting("", "", "", "", "")
Dim dtvCust As DataView = New DataView(ds.Tables(0))
How to bind gridview using dataview in the code behind?
View 1 RepliesI need to retrieve data from DataView/DataTable. I need to retrieve the top4 records, then, 5th - 10th recoed.
This is how I do this, but I am looking for a clean code, doing it correctly:
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I have a table that contains about 8000 records and I need to be able to select any given sequence of 250 subsequent rows by a specific row index of teh table...
how I can go about that easily using a dataview without building a secondary table and just pushing the records I need into it?
I'm trying to filter a DataView to return all the rows whose column x starts with a number: The following works in SQL Server:
select *
from dbo.Page
where Name like '[0-9]%'
However, when I try this:
dataView = new DataView( someDataTable, "Name LIKE '[0-9]%'", "Name ASC", DataViewRowState.CurrentRows);
I get "invalid parameter [0-9] with Operator Like" error message. What is the correct syntax to achieve my goal?
I would like to show the title and the price of a movie in my Gridview. The title and price are properties from the class Movie and Movie is a property of the class CartItem. Here is the Code of my gridview
<asp:GridView ID="gvShoppingCart" runat="server" AutoGenerateColumns="False">
<Columns>
<asp:BoundField DataField="Title" HeaderText="Title" />
<asp:BoundField DataField="Price" HeaderText="Price" />
</Columns>
</asp:GridView>
The DataSource of my gridview is List<CartItem>. This are the classes
public class CartItem
{
private Movie _movieInCart;
private int _Count;
public CartItem()
{ }
public CartItem(Movie movie, int count)
{
_movieInCart = movie;
_count= count;
}
public Film MovieInCart
{
get { return _movieInCart; }
set { _movieInCart = value; }
}
public int Count
{
get { return _count; }
set { _count = value; }
}
public double getSubTotal()
{
return _movieInCart.Price * _count;
}
}
public class Movie
{
private string _title;
private double _price;
public string Title
{
get { return _title; }
set { _title= value; }
}
public double Price
{
get { return _price; }
set { _price= value; }
}
//More properties here
}
Apparently the GridView shows only first level properties, but how do I show these second level properties.
using Previeww 6 of Ajax....
I'm attempting to put a modal popup in each row of a dataview as shown:
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but the popupcontrolid cannot be found. I have checked the Dom and it has been created but $get cannot find it.
I need to bind an ASP.NET control something like so:
<asp:label ID="lblName" Text=<%# GetName()) %>
and in CodeBehind file I have this method:
protected string GetName()
{
...
}
Is this right, or how I can do something like this?
I have several controls on a page that I want to bind the enabled property to a couple of properties in code behind that are set on Page_Load. Here's an example of what I'm using to bind to the properties.
Code:
<telerik:RadComboBox ID="AssignToRadComboBox"
runat="server"
[code]...
This works fine once the page is posted back for the first 4 controls on the page.Here's the 1st control that doesn't get disabled like I expect it to. The expression is the same in the Enabled property so I'm not sure why it isn't working.
Code:
<telerik:RadComboBox ID="CategoryRadComboBox"
runat="server"
Skin="Web20"
Width="225px"
Enabled='<%# IsAdmin && !IsCompleted %>' />
I've got 2 problems with this approach:
1. I need it to happen the first time the page is loaded rather than after a postback.
2. I need it to work for all of the controls on the page having the expression.
It's too late in the development process to rewrite the page so I can't use jQuery & knockoutjs for example to do this all on the client side.
I'm using Sys.UI.DataView and i have input of type text. I bind this input using live binding syntax and it works, but i want to add to this input autocomplete funcionallity.The problem is that autocomplete extender needs server side asp:TextBox and i can't find how to implement livebindng on this server control...
<asp:TextBox runat="server" id="txtTagsEdit">{{Name}}</asp:TextBox>
.... this do not works.
I'm just learning MS ajax and am having problems getting a relatively simple test to work. I'm attempting to call a web service (of the .asmx variety) to return a very simple 3-column table to render in a dataView in an .aspx page. I've successfully created a working service and can by stepping through the service code it's getting the data correctly. The problem I'm having is that it stops with an exception in MicrosoftAjaxDebug.js on this line:
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where my user_table contains 3 columns: user_name, user_key, user_ID. Real simple.My test.aspx page to get this data looks like this:
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One more thing, I'm a little confused between the two downloads I've found, "MicrosoftAjaxLibrary_Preview6.zip" and "AspNetAjaxLibraryBeta0911.zip". From what I can tell, the latter contains all the old Ajax toolkit gadgets as well as the MS Ajax scripts. Is the MS Ajax download just a refresh of the ajax scripts in the Asp.Net ajax library? I've installed and am using the preview 6 scripts for my website.
I have just started with ajax, therefore I have no clear ideas jet.
I'm following HOW TO Call ASMX Web Services tutorial, but how you can suppose, something doesn't work properly.
I have created a web service (code below)
public class Customer
I have a table, and each row has a column where its data is actually a select list. I want the user to be able to select a drop down item, and when they POST, it saves the Id of the selected item. Is this possible?
I'm trying to model a "Room" each room has a number of Jacks, there are 2 types of Jacks (Data/Voice) - this is the select list.
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Something like this does not work. I created a stub in my view model
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Is it possible to display the result of a function instead of the value of a property in a DetailsView Field?
<asp:Label ID="m_LabelPlantCode" runat="server" Text='<%# Bind("PlantCode") %>'></asp:Label>
<asp:Label ID="m_LabelPlantCode" runat="server" Text='<%# Bind("PlantCode(true)") %>'></asp:Label>
I have build a usercontrol in asp.net, and there is a property like the following.
Everything works fine when the bound value is an integer. However, if the bound field return a null from database, it will return a invalid cast error.
change to a nullable int is not desirable because it changes the how programmer work with the control's property in code-behind.
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I have a asp.net FormView with a DropDownList for the selection of a month. The FormView is data bound to an ObjectDataSource.
<asp:DropDownList ID="MonthsList" DataSourceID="MonthsListDataSource" DataTextField="Value" DataValueField="Key" SelectedValue='<%# Bind("OrderDate.Month") %>' Width="100" runat="server" />
I like to bind the selected value to the nested property 'Month' of 'OrderDate' as shown above. The property OrderDate is of type DateTime. The error I'm getting while binding to a nested property is:
A call to Bind was not well formatted. Please refer to documentation for the correct parameters to Bind.
I need show/hide radiobutton control depends on boolean property
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How to bind property visible?
Let's say I have a DataGrid that looks something like:
<asp:DataGrid ID="SomeDataGrid"
runat="server">
<Columns>
<asp:BoundColumn HeaderText="A Header" SortExpression="Sort" DataField="Data"></asp:BoundColumn>
</Columns>
</asp:DataGrid>
In this Grid, I set the datasource to some collection that contains a public property called "Data" and do a databind(). Every works as expected.Now let's say I want to set the DataField attribute of the column to a public member, or a property, or some other thing I've computed. What is the easiest way to go about this without creating intermediate objects or adding public properties to the objects in the collection?So what I want to do is something like:
<asp:BoundColumn HeaderText="A Header" SortExpression="Sort" DataField="someMethod()"></asp:BoundColumn
I am trying to bind a string that contains the ClientID of one user control to the property of another control within a GridView template column. I get the error 'lblVar02' is not declared. It may be inaccessible due to its protection level. How do I do this?
<uc:CriteriaType id="ctVar02" runat="server"
OnClientChange="<%# "toggle('" & lblVar02.ClientID & "');" %>"></uc:CriteriaType>
<uc:Label ID="lblVar02" runat="server" />
I want to do something like this where item is a local variable in the .aspx page:
<p:ProgressBar runat="server" Progress="<%#item.Completed/item.Total%>" Width="100" />
the binding expression isn't detecting the local page level variables. Is there a way I can accomplish this wihtout using RenderPartial?
I'm trying to format the following:
<%# Bind("TimeOfDay","{0:HH:mm:ss}") %>
<%# Eval("TimeOfDay","{0:HH:mm:ss}") %>
<%# Bind("TimeOfDay","{0:HH:mm:ss tt}") %>
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