How can we filter a dataTable if we do not have a column name.
i.e using column index..
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i want filter data with out using Dataset or datatable, any one help me.
thanks to ypu
I am just starting with dynamic data. I have an enttity framework called UsersModel.edmx.
It returns a list of all companies in the tblCompany table. This list is really big.
I need to filter the list returned to all user controls on the client so that it only returns the company that have a CompanyTypeId= 2 or CompanyTypeId= 3 and company name != "".
1 - Is it possible to filter the company list returned on the server so that I can filter only once for all the controls that use that on the client?
My ideas was to do something like this using linq and lambda but I am not sure how:
return tblCompanys.Where(c => c.CompanyTypeId == 2 || c.CompanyTypeId == 3 && ).Where(c=>c.CompanyName != "").OrderBy(c => c.CompanyName).Distinct().OrderBy(c=>c.CompanyName);
2 - I have created a partial class and a metadata class and added the DisplayColumn attribute to use the company name and sort by company name ascending.
Could I use the code to filter the returned companies in this? where?
public partial class t
I am creating a simple shopping cart using a datatable that is passed into a session object. I have a small mini cart that displays the total number of items in the cart as well as the running total - this is displayed in a web control. When the web control starts up I run a try/catch to see if the session object exists, if it doesn't I create the datatable for the cart and store it in the session. I then have a datalist control that contains all the information for my products including an "add to cart" button. When the page loads everything looks fine. If I click on an "add to cart" button nothing happens to the session information. If I click on it again, the session information updates - displaying only one item is in the cart and then counts up correctly there after. Additionally, after adding an item, if I select a different item in the list, the same issue occurs. I am not sure why this is happeing, if anyone can give me an idea I would appreciate it.
iam insert record using datable in gridivew,iam using session to hold the record,
there is any other way to hold the record in datable.
dtempty.Columns.Add("storeid"); dtempty.Columns.Add("ratetypeid"); dtempty.Columns.Add("ratedesc"); dtempty.Columns.Add("slabs"); dtempty.Columns.Add("days"); dtempty.Columns.Add("rate"); dtempty.Columns.Add("contid"); dtempty.Columns.Add("continertype"); DataRow row; row = dtempty.NewRow(); row["ratetypeid"] = ddlratetype.SelectedValue; row["ratedesc"] = ddlratetype.SelectedItem.Text; row["slabs"] = ddlslabs.SelectedValue; &n
After looking for a driver to open legacy dbf drivers to connect, the next level trouble a have is this one:
first, i can retrieve the data but when trying to filter by a parameter (somesc columns) i get an error.
The error says about the database can't determine some blah blah!
The error is a columm tha is formated ( 1234 ) about 8 space, fixed. The values in the query appears like that. I resolve this by Trimming Ltrim(ColumnName) and i get this (1234).
Now in SqlExpress, how can i filter by the new Trimmed Expression? (This is a primary key that the DBF use)
SELECT column1, column2, column3TABLE FoxProDB
SELECT Ltrim(column1) as NewExp, column2, column3TABLE FoxProDBWhere NewExpre = @NewExpres -Error-
hi to all ..thanks in advance
I have Two datatables dtA,dtB ,both contains column name is "FiledName" I need to remove item
from dtA when same row data exists in dtB. please tell me how to do it
I want o/p like this
I have read the data of a excle file and captured the data into the dataset to a datatable, now that data is to be inserted into a SQL Server table using bulk copy option. I am using -
public bool BulkEnterData(DataTable dt, string tblName)
SqlBulkCopy bulk = new SqlBulkCopy(con);
bulk.DestinationTableName = tblName;
ERROR Getting-A transport-level error has occurred when receiving results from the server. (provider: Shared Memory Provider, error: 0 - The pipe has been ended.)
How to resolve the above problem or any other solution is available.
I am trying to simply extract an excel data from an uploaded file an put it into a datatable. In this case the excel file has 3 rows but when I fill the datatable I only see row count of 2.
I tried changing HDR:NO; to HDR:YES and vice versa, but no luck.
What am I doing wrong? (Note: the excel file cannot have a headerrow)
string connstr = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + pFilePath + ";Extended Properties=\"Excel 12.0;IMEX=1;HDR:NO;\"";
OleDbConnection conn = new OleDbConnection(connstr);
DataTable dtTables = conn.GetOleDbSchemaTable(System.Data.OleDb.OleDbSchemaGuid.Tables, null);
string strTablename = dtTables.Rows["TABLE_NAME"].ToString();
string strSQL = "SELECT * FROM [" + strTablename + "]";
OleDbCommand cmd = new OleDbCommand(strSQL, conn);
DataTable dt = new DataTable();
OleDbDataAdapter da = new OleDbDataAdapter(cmd);
//At this point row count=2 which doesn't make sense
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
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
How can I use wild card to fetch all users which belong to
For example: (&(&(objectclass=user)(objectclass=person))(memberOf=CN=.*kuku.*))
I have download and installed the Crystal Report for 2010 from my Visual Studio 2010.
Problem 1 :
When I create a new crystal report in the Project, the aspx created code below :
<CR:CrystalReportViewer ID="CrystalReportViewer1" runat="server" AutoDataBind="True" GroupTreeImagesFolderUrl="" Height="1202px" ReportSourceID="MemberList" ToolbarImagesFolderUrl="" ToolPanelWidth="200px" Width="1104px" /> <CR:CrystalReportSource ID="MemberList" runat="server"> <report filename="MemberList.rpt"> </report>
but there is error : unrecognized tag prefix or device filter 'CR'
Problem 2 :
The vb code of the crystal report that I had created has 'ComponentModel is not a member of 'MYPROJECT.system'
Iam having a requirement where I wil get datatable or Dataview from the DataAccessLayer I need to convert them into GanaricList of entites and ViceVersa from GenericList to Datatable or DataView.
I tried it but I cant. Can anybody help me out.
ADO. NET 2. 0 sports some exciting enhancements to the core classes found in ADO. NET 1. x and introduces a variety of new classes, all of which promise to improve performance, flexibility, and efficiency.
MSDN Magazine November 2005