I have this linq query and I use it to filter data where the user can apply filters in cascade:
[Code]....
After that I need to filter the data in session if the user choose another filter to apply, for example:
[Code]....
So I need to implement pregress filters to some data filter that is newWith type.
I would like to implement LINQ IN ASP.NET for filter required data from datatable. I have doubt that what is right place. I have following options
At presentation layer *.aspx.cs
At our Business layer.
At our Data base layer, where query for database happen which is return as a datatable to business layer. Business layer then return the result to presentation layer.right place for LINQ because now i have to further filter data from datatable as per user selecter filters.
i could bind the data form tables to dropdownlist in asp .net using linq.
ex:
var res=from n in dc. contacts where n.location==Hyd select new{n.Id,n.Name};
var res1=from n in dc. Morecontacts where n.location==Hyd select new{n.Id,n.Name};
dropdown1.Datasouce=res;
dropdown1.DataTextField="Name";
dropdown1.DataValueField="Id";
[CODE]...
Many times I need to manipulate with DataTable after I get data from database using adapter.Fill(table).
Usually I calculate data in DataTable by using loops. But I know that there is simpler way using LINQ. I know some basics about that just for strongly typed objects.I can't find how to do this with DataTable that is not strongly typed. How could I get all DataRow or Filtered DataTable (not just value for the field) from table for that conditions:
- where the specified field of the table contans MAX/MIN/AVG value,
- where the specified field of the table equals to some value.
I need to filter LINQ query using comboboxes and textboxes. The problem is I can't manage to get the result and I always get the empty gridview (used for showing filtered data). Can anyone help me why am I getting no results at all? I've checked the debugger and the data sent to query is valid, although, I'm not sure about "string.Empty" value.
string naziv, nazivEn, adresa, tel, fax, mob, email, web, oib, tip, mjesto;
if (chkMjesto.Checked == true)
{
mjesto = cbMjesto.SelectedItem.Text;
}
[code]....
I have a collection of objects that I want to use LINQ in order to filter out only objects that have properties that meet a certain criteria. I am not big on LINQ so I am not sure how to do this.
I create a basic LINQ statement and get the records this way
Dim lr As IEnumerable(Of LogRecord) = From rr In _logRecords where rr.username="something"
but I only want to add that where condition if someone actually filled in a textbox.
I have other conditions to do the same thing with.
I have a dropdown filtering the results of a DataGrid it´s working fine, but I select a city to filter the results in the DataGrid it brings me
all the cities in the database and not only the ones in the DataGrid....
I donpt know what property to use.....
Here I have the Dropdown in the code behind:
[Code]....
and here is here I´m filtering ....
[Code]....
What should i do to bring the results in the datagrid ??
I need good css for Gridview just like the mac css
can we provide the filter functionality to gridview like the excel filter.
In securing actions/controllers, do I have to create a custom filter or use MVC built-in filter?
To use the built-in attribute Authorize() on an action/controller or create a separate class that inherits the ActionFilterAttribute which has a method (OnActionExecuting) to override and do the authentication there?
In my organization we use nested groups. For a particular usage, we have a group (let's assume that the group name "kuku"), and the names of all the nested groups under it contains "kuku" as well.
We may assume that no other group in the LDAP has "kuku" in the name.
I need to create a filter which will return all the users which belong to one of the "kuku"s group.
Obviously, using this filter will bring only the head kukus
(&(&(objectclass=user)(objectclass=person))(memberOf=CN=kuku,cn=...rest of the group DN...))
How can I use wild card to fetch all users which belong to any kuku?
For example: (&(&(objectclass=user)(objectclass=person))(memberOf=CN=.*kuku.*))
I have decorated my base controller with a couple of action filters. They work fine.
One of those filters sets up the request - does things like set the culture based on the domain, etc.
I also have a handful of actions that require authorization using the Authorize attribute.
My problem is that when an user attempts to request a page they are not authorized to access, the authorization filter kicks in and redirects them to a page telling them that they cannot vie the page.
The issue is that the action filters never run so the culture and other request data is never set. This effectively causes language to be wrong in the view and other data to be missing.
I know that authorization filters run first but my question is this: How can I design this such that I can ensure that certain methods are always run before the view is returned, regardless of the authorization.
I have a list<string> which have a bunch of Employee Names
Second, i have a list<Employee> (employee object )
Employee.Employee Name
Employee.status ........
Now
how can i filter list<Employee> , so that i can have the list with only the names from the List<string>
I need to put some of the entities created via a.dbml Linq-To-Sql file into Session State. Because I am using out-of-proc State Server, they need to be serializable. How can I achieve this? I have tried setting the Serialization mode in the .dbml file to 'Unidirectional'.
View 1 Repliesdoes a action filter override a controller filter?
View 2 RepliesI want to be able to persist data across a session but do this outside of the built-in session state object. Why is a long story that I will not go into here. I just need to know where I can put data other than in the session object that will persist across the specific session.
View 3 RepliesHow do i show the available data based on the dates? Something like the show only FUTURE dates data.
View 4 RepliesUsing ASP.NET 2.0
I have a gridview populated by a SQLDataSource that is fairly complicated on a dataset changing constantly. It takes a second or so to fetch the data.
I want to have external dropdownlists for filtering the data that appears in the gridview, either with a FilterExpression or with parameters.
The problem is that querying the database to populate the dropdownlists takes a long time, because of the complexity of the query. The values in the dropdowns can vary based on other filters.
Is there some simple way of querying the database only once, for the main gridview, and then somehow querying the local (to ASP.NET) copy of the data to extract distinct values for populating the filtering dropdowns? I am thinking this might speed things up a bit.
I want bind  and filter gridview data with  values selected in checbox list ..
i am bind checkboxlist on pageload ....but able to filter the result the of gridview with value of checkbox list ..
when i check box  nothing happen
This my code
 <div>
<asp:CheckBoxList ID="CheckBoxList1" runat="server" AutoPostBack="True" DataValueField="cartid" DataTextField="sub"
onselectedindexchanged="CheckBoxList1_SelectedIndexChanged" >
</asp:CheckBoxList>
[Code] ....
How to Filter Data/row from Repeater control in C.#Repeater control :---------------------All (15)shoes (3)shirts (12).Actually on click i want to filter data/row (posts) from Repeater control. Example: if i click on shoes 3 posts should display only but by default all 15 posts should display.Â
<asp:HyperLink ID="HyperLink2" runat="server" NavigateUrl='<%#DataBinder.Eval(Container,"DataItem.id", "./Default.aspx?id={0}")%>'>Â <%#DataBinder.Eval(Container,"DataItem.Category")%></asp:HyperLink>
a simple way to filter SQL data when it is retrieved by a GridView control?
Among the various applications I need to create are selecting records based on user inputed criteria (via a DropDownList), and excluding records that have null values (which I need to allow in my database) in certain columns.
I have the web page that meet the problem. There exists a gridview and filtering. When Select all by using function A, it is OK. when Filter by using function B, it cannot filter and return no rows. When Select all again, it is OK. I have tested that function B can return the corrected filtered rows. But when databind in the web page, it cannot show and no error?
<ContentTemplate>
<asp:GridView ID="gvwBOM" runat="server" DataKeyNames="ProductID"
AutoGenerateColumns="False" DataSourceID="objBOM" AllowPaging="True"
AllowSorting="True" BorderWidth="0px" CellPadding="3" CellSpacing="1" CssClass="grid-view"
OnRowCreated="gvwBOM_RowCreated"
OnRowCommand="gvwBOM_RowCommand"
OnDataBound="gvwBOM_DataBound" >
.........
<asp:ObjectDataSource ID="objBOM" runat="server"
SelectMethod="GetALTBOMs"
SelectCountMethod="GetALTBOMsCount"
EnablePaging="true"
SortParameterName="SortExpression"
TypeName="QI.BLL.WMS.ALTBOM" >
private void FillGridView(string filter)
{
if(filter == "0")
{
objDataSourceSelect="Afunction";
this.objBOM.SelectParameters.Clear();
}
else
{
objDataSourceSelect="Bfunction";
this.objBOM.SelectParameters.Clear();
this.objBOM.SelectParameters.Add("productSupplimentID", ddlTmp.SelectedValue);
}
this.objBOM.SelectMethod = objDataSourceSelect;
this.objBOM.SelectCountMethod = objDataSourceSelect + "Count";
this.gvwBOM.DataBind();
}
i have gridview and data already binded like this...
First Name Last Name Age Date
Qasim Nadeem 26 13/01/2010
Ali Ahmad 20 17/02/2010
Qadeer Numan 18 23/08/2010
Ahmad Asghar 20 23/08/2010
Mohammad Nadeem 26 13/01/2010
now i have One TextBox and four radio button like 1.rbFirstName,2.rbLastName,3.rbAge,4.rbDatemy requirment is if i select radiobutton first rbFirstname and i will enter a text into textbox than ONKEYUP filter the gridview data and show only those row where data is match in first coloum"First Name" and hide the rest of rows...same required for radiobutton 2,3 and 4 respectively in gridview 2nd ,3rd and 4th coloum....i need this solution in javascript or Jquery but i dont want reload the page...
Default.aspx**
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="admno"
DataSourceID="SqlDataSource1">
<Columns>
<asp:BoundField DataField="admno" HeaderText="admno" ReadOnly="True" SortExpression="admno" />
<asp:BoundField DataField="bcode" HeaderText="bcode" SortExpression="bcode" />
[Code] ......
i need to Filter and display Google Map Markers from database based on DropDownList selection. for that I need to pass the selected value of DropDownList to the query.What should i do in the following code to do the above task?
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
[code]...
I use EF 4, C# and MS Membership Provider.
I have a GridView with DataSource an EntityDataSource web control.
I would like filter Data using EntityDataSource, filter show apply for the Current Logged-In User, this value should be taken using MS Memebership Provider ( Membership.GetUser(); ).
Now I cannot inf any Parameter in EntityDataSource that would allow me to dot that (in Where/Automatically generate a Where expression using provided parameter ).
