I want to filter the DataTable. for filtering the the datatable I am passing the string parameter which contains multiple wildcards ( e.g. string strSearchValue = "test%str%g")
View 5 RepliesPrior to adding paging using PagedDataSource I had dropdownlist and search box filters for my DataList. The guts of the code in aspx page for those parameters is below:
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:ConnectionString %>"
[code]....
When creating the pager using PagedDataSource I did a tutorial which did not have parameters and all the code went in the code behind page. The guts of it is below:
private void BindGrid()
{
string sql = "SELECT [ProductCode], [ImgUrl], [Featuring], [Title] FROM [TableSG1] DESC";
[code]....
The pager is great but now I need to add my filters. The page wont load if I add the "SelectParameters" code (above) to my aspx page and if I simply add the "WHERE" clause to the "SELECT" clause in the code behind I get an error stating that I need to add a scalar variable.
I have found some examples through googling but nothing specific enough.
Prior to adding paging using PagedDataSource I had dropdownlist and search box filters for my DataList. The guts of the code in aspx page for those parameters is below:
HTML Code:
[code]....
The pager is great but now I need to add my filters. The page wont load if I add the "SelectParameters" code (above) to my aspx page and if I simply add the "WHERE" clause to the "SELECT" clause in the code behind I get an error stating that I need to add a scalar variable.
Dim dt As New DataTable Dim da As New SqlDataAdapter(s, c)
c.Open()
if Not IsNothing(da) Then
da.Fill(dt)
[code]...
When I call da.fill I am inserting all records from my query. I was then hoping to filter them to display only those where the GroupingID is equal to 0. When I run the above code. I am presented with all the data, the filter did not work. Please can you tell me how to get this working correctly.
One of our customers has a report with a single value string parameter that has over 1000+ possible values. selecting single value from 1000+ choices results in bad UI, among other things.create another parameter that acts a filter for the other parameter. So you would have Param1 with say 25 choices and selecting a choice would narrow down the option for the second parameter.Is this the best way. What is the best practice for handling these kinds of parameters?
View 5 RepliesMany 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 create a DataTable and filter it. When I use filter1, everything works as expected. When I use filter2, everything works as expected only if the SubsectionAmount variable is less than 10. s soon as I set SubsectionAmount=10, the dr2 array returns Nothing.
Imports System.Data
Partial Class FilterTest
Inherits System.Web.UI.Page
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Loa
[code]....
I am doing some aggregates on in memory tables using the DataTable.Compute method. It works file if there is only one filter, however when there is multiples then it does not work.
This first one works fine the second one does not.
[Code]....
In my ASP.Net application I'm using URL routing.
The url format is somewhat like: [URL] To allow users to visit the login and recovery page, I've added the following entries to my web.config:
[code]....
Is there a form of notation so that I can skip the en-GB part and replace it with a wildcard? I want the login and recovery page etc. to be available regardless of the culture.
I have to develop an authorize filter in asp.net mvc.I have got five categories of users in my site and my site uses custom created authentication system.Now i have a controller action which should be accessible to 3 out of those five type of users.How to create a filter (basically authorize) and use it which fulfills my requirement?I think i need to create the authorize filter with parameter.I should be able to use something like this in my controller action.
Authorize[UsersType="admin,accountant,operator"]
public ActionResult Test()
{
}
technology used : Asp.net MVC
I've built a User Control that contains a ListView. To make it work I need to pass to it a DataTable. The columns of this DataTable need to have particular names that match up with what the ListView is expecting. I have a large DataTable that I need to massage/convert over to this different format. To do that I need to filter out columns and rename the column names. The actual data in the DataTable doesn't need to change. Is there a good way to do this without actually instantiating a new DataTable and copying the data from the large DataTable into it?
View 14 RepliesI 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.
[URL]as the iage upstairs i have to create a filter in my sql stored procedure
so, my difficulties is switch the "and" and "OR" paramers located in the webFormhow can i do that?i was thinking to save in a temporaney variable : @temp='and field=1'
but my difficulties is to concatenate with a principal query and execute it
i have a dataset which contains some data.
let dataset have some columns one among them is " Type "
let the values in column type be type1,type2.type3 and so on
now if i want to filter dataset which contains only type3
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]...
I am in need of filtering the datatable only with Month and Year .
I am able to perform this in SQL using
Year(date) =2015 and Month(date)= 5
How to perform this using Row Filter ...
I have a ListView with Checkbox. My requirement is - When I click on any checkbox then it should return all the columns values of that row on behalf of that CheckBox. After much study I came to know that using DataTable and DataRow I can get all data of particular ID of a Row. But I am unable to work with this. My code is something like below:
DataTable dt=new DataTable();
dt=objBAL.Get_ShoppingCartData();
ListView1.DataSource=dt.Tables[0];
[Code].....
I thought this would be easy and maybe it is but it's eluding me.
In an action filter (MVC 2) I want to add/edit one of the parameters for the type I'm passing to my action method.
I have an action method:
[Code]....
Bar is a simple class for viewData:
[Code]....
In my BarFilter action filter OnActionExecuting method I want to add a value for paramA which is not set by the view so that Bar will be fully populated in my Foo action method. I've tried various methods of adding values to ViewData, ModelState, Model etc. but I always get a null returned in Foo.
protected void btn_showReport_Click(object sender, EventArgs e)
{
//ReportViewer1.Visible is set to false in design mode
ReportViewer1.Visible = true;
[Code].....
Parameter 'Comp_Name' does not exist on this report
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.ArgumentException: Parameter 'Comp_Name' does not exist on this reportSource Error:
Line 96: ReportViewer1.ServerReport.ReportServerUrl = new Uri("http://dell-pc/ReportServer");Line 97: ReportViewer1.ServerReport.ReportPath = "/test Report/test1";Line 98: ReportViewer1.ServerReport.SetParameters(new ReportParameter[] { Comp_Name });Line 99: ReportViewer1.ServerReport.Refresh();Line 100: }
In my application i need to filter a gridview using four or five parameter.
View 3 RepliesI have a dropdownlist with multi-select which I am using to filter a gridview. My problem is it only uses the first selected item for filter.
If I select one works fine, if I select 2 items the grid is filtered by the first item selected.
[Code]....
Am using northwind sql server database to do a test. Using customer, order table to show master detail report. Customerid is the reference. After Create a Parameter to run the subreport. Some how i cant able to refernce the master, detail. so it will show all the records in the detail section instead of showing relevant customer id details from the orders table. pls see the picture belowMainreport - > call the subreport parameter. but i miss with one more step to finish the report "Filter Expression", i guess. how to pass the parameter value subreport filter.
Customer.aspx
[Code]....
customer.aspx.cs
[Code]....
I am using url in my mvc application like /product/edit/5, should change it because users can
change id parameter and access different product as this Id directly refer to Id in product table, I have validation there for user to access product.
should I continue with it or should I change it as application has many users
I have a pop up window which contains a listbox. The items on the listbox should be filtered when it is opened based on the other parameters on the parent page. I am using session to pass the values from a page to another.
View 4 RepliesWhen I try the following:
[Code]....
I get an error saying No overload for Add method takes 2 arguments. HOw would i pass the PaycheckID in then as a paramter?