I was wondering if it is possible to assign 2 variables to DataView.RowFilter. if it is, how do I code it.
I have tried this:
[Code]....
but i got this error
Missing operand before 'and' operator error
In My Project We Filter Dataview Which Contail Integer and string value
sort data likes this
dvv.RowFilter = filterfor + " Like " + SearchExpression;
but when integer value is encounter Error occurredÂ
Cannot perform 'like' operation on system.int64 and system.string
I got this error message when I use rowfilter
Line: 938 Error: Sys.WebForms.PageRequestManagerServerErrorException: Cannot perform '=' operation on System.Int32 and System.String.
My code is like this
[Code]....
When I check only string, it's okay
But I have to check string and int because some columns are only Integer such as LLMS_Id, Risk, RsidualRisk
I am filtering dataview using my Date Column but the result is not proper because the Field value also stores time, so I want to convert this Date Field to only Date during Filter. How can I achieve this? Here is my code. And the actual value I am getting in the Dataset Field "CreationDate" is a DateTime field which is like
2010-01-21 14:35:25.203
2010-01-22 12:55:18.033
2010-01-26 12:10:06.990
But I only want to neglet time value and want to compare Date only.
[Code]....
I'm using sql dependent caching in my ASP.NET application, and to achieve this I have the following entry in the web.config:
<connectionStrings>
<add name="DatabaseName" connectionString="Data Source=.Dev;Initial Catalog=DatabaseName;Integrated Security=True" />
[code]...
I am looking to cache a dataset and then filter the results as they will be used repeatedly. However, I don't know how to assign values in the filtered dataset to variables in C#. I have looked on the internet for the past few hours but all I can get in binding the dataset to a control.
View 4 RepliesI am using MS SQL Server 2005 & here is my problem: I need to assign values to the multiple variables in a single select. But each value is depend on the certain value of the other column of the table.
declare @i1 Int, @i2 Int, @i3 Int;
select
case Table.column1
when 'red' then @i1 = Table.column2
when 'green' then @i2 = Table.column2
when 'blue' then @i3 = Table.column2
end
from
dbo.Table
how to achieve this in a single select?
My UI layer calls my business layer which populates a DTO. I need to display properties from the DTO on my ASPX page. Should I create public variables on the code behind page for each of the DTO properties and reference like <%=PublicPropertyName%> OR is it ok to set the DTO instance to public and reference the properties directly like <%=dtoInstance.propertyName%>
Additionally, would it be better if I just created Literal and Label controls for every item on the ASPX page and just populate them from the code behind only?
I am looking to retrieve data from a database and assign those values to class objects which in turn will be turned into session variables. I am using an object datasource to retrieve the data from the database but I cannot find anywhere that shows how to assign these values to variables. The data is returned in a dataset. There is the added problem that there will be mulitple items returned which will have to be assigned to different arraylists of objects based on the a primary key in the database.
View 4 Repliesi am developing a simple form in vb.net on load event i am just filling a datatable from an excell sheet and what to do filtering on it e.g
Dim MyCommand As System.Data.OleDb.OleDbDataAdapter
I have a method that I created to use the row filter on a dataview. It works fine with a single filter but when I add the AND statement to the end it throughs and execption.
[Code]....
Syntax error: Missing operand before 'And' operator.I spent all day Friday trying to debug this but got nowhere?
I have this code in javascript: var x = e.mapX; It gets the X-coordinate of a map. What I want to do is that I want to store this into a c# variable. I have a class named Test with an integer property X. I want to store var x into X. In the codebehind, I have this on the Page_Load: Test test = new Test(); Then I am trying this on the javascript code: var x = e.mapX;
View 16 RepliesHow can i filter distinct using for RowFilter?
DataView dataView = employeeDataSet.Tables[0].DefaultView;
dataView.RowFilter = "EmployeeName like '" + searchText + "%'";
GridView_Search.DataSource = dataView;
GridView_Search.DataBind();
I have the following code which doesn't seem to work. In the Page_Load function I populate the DataSet and display the results in a grid view.
newsCommand = new SqlCommand("SQL code here", dbConnection);
newsDataSet = new DataSet();
newsDataAdapter = new SqlDataAdapter(newsCommand);
newsDataAdapter.SelectCommand = newsCommand;
newsDataAdapter.Fill(newsDataSet, "Bulletins");
[Code]....
Yet the gridview shows the data it orignally loaded, and not the filtered data. The only thing I can think of is that I'm not using the DataTable in the Page_Load function.
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 am trying to collect 2 variables from one hyperlink, and use those variables in the page_load to set as session. but i don't know how to collect those 2 variables
such :
<a href="javascript:;" onclick="wsChangeColor('mainData', '#FF0000','#FFE4E1');return false;" title="Change color" id="red">1</a>
i would like to collect '#FF0000','#FFE4E1' or direct set '#FF0000','#FFE4E1' to string then send to pageload, how can i do this by only clicking on it ?
I have Dataset with Data table with unsorted record i used the RowFilter for Filtering the Record like below
DatasetStudent.Tables[0].DefaultView.Sort = "Column Name"
Now i have to Pass the Dataset DatasetStudent with sorted record to Report how i convert the default view to Dataset.
Does anybody have an example on how to query a dataview and populate a dropdown? I'm having a hard time doing this:
[Code]....
I need to handle a datatable or dataview in the code below
private
void SetListDataSource(ListControl
lc, DataView d,
string valueField,
string
textField)
[Code]....
I want to sort the string which is in the format given below15% Test;15% Sear;40% Santhosh;30% Jeeson;
The output that I am expecting is
40% Santhosh;30% Jeeson;15% Sear;15% Test;
I wrote the following code but it does not work .
string str = "15% Test;15% Sear;40% Santhosh;30% Jeeson;";
Console.WriteLine(str);
DataTable dt = new DataTable("SortBenchMark");
DataRow dr;
dt.Columns.Add("Weightings", typeof(int));
dt.Columns.Add("BenchMark", typeof(string));
string weightings = string.Empty;
string BenchMarkName = string.Empty;
foreach (object o in str.Split(';'))
{
if(o.ToString().Length > 0)
{
dr = dt.NewRow();
dr["Weightings"] = Convert.ToInt32((o.ToString().Split('%'))[0].ToString().Trim());
dr["BenchMark"] = (o.ToString().Split('%'))[1].ToString().Trim();
dt.Rows.Add(dr);
}
}
dt.AcceptChanges();
DataView dataview = new DataView(dt);
dataview.Sort = "Weightings DESC,BenchMark Asc";
string final = string.Empty;
foreach (DataRow drow in dataview.Table.Rows)
{
final += drow["Weightings"].ToString().Trim() + "% " + drow["BenchMark"].ToString().Trim() + ";";
}
Console.WriteLine(final);
Console.ReadLine();
[Code]....
binding datareader to a dataview/gridview
I'm using the RowFilter within the gridview to filter out the grid. It works pretty good however, if a user enters in more than one value and hits search it seems to work like a "OR" instead of a "AND". Or it will display all values satisfying both rowfilters.
[Code]....
The code is pretty simple you have a group of textboxes and dropdown boxes in the front. When a user enters in the specifics and hits search it falls through each if statement until one is staisfies and sets the gridview....
whats the exact use of static variables in overall programming in .net and for asp.net...
Recently i went for the interview where interviewer asked me 2 question which i was not sure for the same..
whats the use of session object, i said sessions are the server side object, they are used when you want to store user specific data at server side, then he asked what if i want to use static variables for the same, i was mum, can anyone tell me how asp.net will behave if i store the user specific information in static variables.If i use cookies which are the best option to store the data at client side (not sensitive one), but what if user has disabled cookies on his machine, will my application would crash.
I am trying to create a page where my user can create a new attribute dropdown for their records. To which I have created a function whereby they can create a new list and add values to it.I have query that returns a dataview with fields List ID, List Name & List Item. I want to generate a new dropdownlist for each new List ID. It should also have auto postback (although, each list will then call the same procedure),This is all new territory to me. Although I'm working in VB, I can usually follow C# examples.
View 2 RepliesCan a dataview be declared as public?
Dim dvEditTreatmentType As DataView = New DataView(dsTreatmentEndDate.Tables(0), "IsNull(DialysisEndDate, '') = ''", "", DataViewRowState.CurrentRows)
can this be declared as public Dataview? is there a way to do it?