I have a dataset with a table adapter that has several queries. I want to execute on of the queries and fill a data table but am having trouble with this operation. Am I invoking my table adapter incorrectly? See line 56.
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i will passing a parameter from within the program, but i can't find Fill Function!Do I need to use a specific namespace? (i using VS2008).
View 1 RepliesSo, I have 3 table adapters in my dataset, and trying to configure the objectDataSource will not give me the option to select the correct table adapter.
I set up a temporary website to illustrate what I am talking about, along with pics, not much, just 4 pics.
https://sites.google.com/site/configuringobjectdatasource/
The first 2 pics are irrelevant but just in case anyone thinking I don't have it set up properly. The other table adapters are working fine, which I have gridviews being populated etc.
why it will not give me the option to select aspnet_GetRecordDatesTableAdapter?
I right click on a TableAdapter, select Add Query, select using QueryBuilder, then select a field to filter upon, and add Filter as =@BookStem. Automatically the QueryBuilder adds the WHERE clause to my new query:HERE (BookStem = '@BookStem')When I press OK, I get "BookStem in expression is not part of the query". And filtering doesn't work.
View 1 RepliesI have no clue what I'm doing wrong here, but I wanted to create a grid view based on a return from a tableadapter.
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Also, maybe I should be going about this another way as I wanted to add a drop down to each record and a link to each record.On pointers on how I should do this would be great too.
using linqs how to fill datatable using linq to sql in asp.net
i have one storedprocedure to select data from table
and one s.p for insert the data and one for update the data
how i use these s.p to insert and update the data using linq. to sql
I am gettin error in this code
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I am trying to use a SqlDataAdapter to fill a DataTable, which I use as a data source to a DataGrid. The query is fine, at least when I run it manually in SSMSE. When I do the fill operation, the table gets the right columns, but no rows. The most frustrating part of this is that the code is identical (with a different query) on a different page. I cannot post the query, but my initialization code looks like this:
SqlCommand areaDAC = new SqlCommand (areaQuery, connection);
areaDAC.Parameters.Add (new SqlParameter ("@param", System.Data.SqlDbType.NVarChar, 50));
m_areaDataAdapter = new SqlDataAdapter (areaDAC);
Then to use it:
m_areaDataAdapter.SelectCommand.Parameters["@param"].Value = "Filter Val";
DataTable table = new DataTable ();
m_areaDataAdapter.Fill (table);
At this point, table has the right number of columns and no rows. I know the parameters are being added correctly, I know that data exists for the given query.
Update (as provided by Nik in a comment):
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I am trying to run a linq query but I need the result as a datatable as I am using that to store records from different queries in the same viewstate object.The 2 versions below compile, but return an empty set. The exact error is "Value cannot be null.Parameter name: source". (and yes I have checked there is data):
MyDatabaseDataContext db = new MyDatabaseDataContext(conn);
IEnumerable<DataRow> queryProjects =
(from DataRow p in db.STREAM_PROJECTs.AsEnumerable()
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I tried to use typed dataset with a simple query and i got the report working.
Now, i am trying to do is:
I made a class in a project. That class just contains a simple function with a select query. This query returns a datatable. I just want to use all the fields returned by the datatable in the report.
Is there any solution to this ? or my approach is wrong ?
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Using C#, Visual Studio 2010
I have 8 drop downlists created in .aspx page.
I try to programmatically fill the 8 using a single datatable. Each dropdownlist has its own column in the datatable and is supposed to display only the column that corresponds to it. It does display the column it is supposed to however it also displays a number of empty slots equal to all the other columns combined.Here is the code can someone tell me why I get the empty slots?
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In am using following code for paging purpose in asp.net to reduce the load of reading all the records from the database.
SqlDataAdapter.Fill(StartRecord,MaxRecords, DataTable);
I want to know whether this code Get all data from data base and filter the records in application or just fetch the needed records only.
I am not clear when do I want to use a webservice over a sqlDataAdapter for dataRetrieval. I want to populate a repeater control which I have been doing from a dataTable that I fill from a sqlDataAdapter. Is there criteria when I would want to use a webservice to fill my dataTable?
View 3 RepliesI'm using a OleDbDataAdapter object to fetch certain data from a database and place it in a data set object. The code for this is presented below:
oleConn = new OleDbConnection(WebConfigurationManager.ConnectionStrings["PTDB-ConnectString"].ConnectionString);
oleConn.Open();
oleComm = new OleDbCommand("spGetPartRevisionFromSN @SerialNumber = " + SN, oleConn);
oleComm.CommandType = CommandType.Text;
ds = new DataSet();
da = new OleDbDataAdapter(oleComm);
da.Fill(ds); //<--OleDbException occurs here
My problem is that when the program reaches the Fill method of the data adapter, I receive an OleDbException with the error being "Incorrect syntax near 'SN' ", where SN is an alphanumeric serial number. I have a few SNs that I'm testing, the pattern I notice is that the method seems to run fine with an SN that begins with a letter, e.g. "J123456", but this exception gets thrown for every SN that begins with a number, e.g. "1ABCDEF". I'm not alterting the SNs, which are just strings, in any way and I've run the SELECT query, defined in the stored procedure, in SQL Server Management Studio with both kinds of SNs without a problem.
i'm developing a website to my office, i have a question related data loadinf performance related.
dataadapter.Fill() or dataTable.Load(Datareader) give the best performance in asp.net ??
Why will not fill View page of this controller method
public ActionResult Person()
{
testEntities6 testPersons = new testEntities6();[code].....
to correct the method for the given below calculation:-
if num1 <=2.500 then
num1.text= (num1) % 10 + Num1
else num1=num1.text= (num1) % 10 + Num1
if num1 >2.500 <=10.00 then
num1.text=(num1) % 10= + Num1
else num1.text= (num1) % 10 + Num1
if num1<=10.000 then
num1.text=(num1) % 2 + Num1
else num1.text= (num1) % 7+ Num1
if num1 <=10.000 then
num1.text= (num1) % 6 + Num1
I am trying to update a coulmn in datatable but keep getting error:
Input string was not in a correct format.Couldn't store < > in SortOrder Column. Expected type is Int32.
SortOrder is column of Type Integer that either contain Null or number.
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I have a form with a drop down list. I want to pass the value of the selected item and a hidden field called stidentid to a controller action that would check my database to see if records for that id and semester exist and return the view with the appropriate values filled in. I'm not really familliar with Javascript or Jquery so I tried this:
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}).change();
however nothing happens when I select anything from the semester list not even a crash. What am I doing wrong?
I've been struggling for some time now with an MVC routing issue, but I have finally reached a point where the basic routing is correct; that is, the application is invoking the correct action method and .aspx page, but the action method fails because no parameters are passed to it.
Before I show detailed screenshots of the problem, I had better provide some background. This is a bibliographic application which, among other things, analyzes text abstracts to identify unique words and the number of occurrences for each word in each document. This data will eventually be inserted into a SQL Server database, but for the time being I only want to do the calculation and display the results, on a document-by-document basis, in an .ASPX view set up for the purpose. The data structure of the application is as follows:
Collections -this is a set of fifty or so CollectionDetails items.CollectionDetails represent individual documents, in this case books in an academic library. Attributes of the CollectionDetail record are those typical of a library book--author, call number, title, year, and so on. The title and subject catalog headings are combined to form a quasi-abstract, which becomes the basis of the text analysis. In a few cases, I added additional text from Google Books or Amazon synopses and reviews.
MasterStopList contains common words such as pronouns and prepositions that we want to exclude from consideration.
I have an input box for searching employee info (attached to a jquery autocomplete), and a box for employee number. The employee info queries multiple values (Lastname Firstname, Title, Clocknum) and returns them all as a string via the autocomplete. This is only if they dont know the clock number. The additional box is so they can search via clocknum as well.
Is there a way, to fire a method which populates a data control after clicking on or tabbing on the selected jquery autocomplete value?
I have 3 table in database
1-state
Id state
1 USA
2 UK
2-City
Id name state
1 Canada USA
2 London UK
3-Region
Id regionname cityid
1 01 Canada
2 02 London
and I have 3 DropDownList that refer below thread [URL] ...
I use cascadingdropdown for these 3 dropdownlist below are codes:
AND
[WebMethod]
public CascadingDropDownNameValue[] GetCountries(string knownCategoryValues)
{
string query = "SELECT state FROM stateTest";
List countries = GetData(query);
return countries.ToArray();
}
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1-DDLstate
2-DDLcity
3-DDLregion
at first I should select Item from DDLsate then DDlcity and at the end I should select Item from DDLregion
above code work correctly for ddlstate and ddlcity but it doesn't work for ddlregion...
I mean when I select Item from ddlcity in ddlregion shows:[Metod error500]
in the client app, i want to handle SOAP exceptions thrown by web service. Currently, when exceptions are thrown by the web service, Detail.OuterXml property of SOAPException class shows below XML data. In code below, what's the correct method to reference namespace, values, etc to get to the error-code, error-field-name, error-message and error-description value?
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Code:
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I am learning Asp.net web application. I have one doubt.
Is it possible to pass the DataTable from one Method to another in the same class?
i just use this code to insert value in datatable and pass this table in method
look code---
public class RoomBO
{
DataTable dt;
RoomDal objRoom = new RoomDal();
public int insert(int room,string bedType, int bed, int charge)
{
//adds the details of the new room
dt = new DataTable();
dt.Columns.Add(new DataColumn("Column1"));
dt.Columns.Add(new DataColumn("Column2"));
dt.Columns.Add(new DataColumn("Column3"));
dt.Columns.Add(new DataColumn("Column4"));
DataRow dr;
dr = dt.NewRow();
dr["Column1"] = room;
dr["Column2"] = bedType;
dr["Column3"] = bed;
dr["Column4"] = charge;
objRoom.Save(dt);
return 1;
}
*on data access layer*
public int Save(DataTable dataTable) //adds the details of the new room
{
ada = new SqlDataAdapter("room_insert", con);
//DataRow r= dataTable.NewRow();
ada.SelectCommand.CommandType = CommandType.StoredProcedure;
ada.SelectCommand.Parameters.AddWithValue("@room_no",
Convert.ToInt32(dataTable.Rows[0][0]));
ada.SelectCommand.Parameters.AddWithValue("@room_type",
Convert.ToString(dataTable.Rows[0][1].ToString()));
ada.SelectCommand.Parameters.AddWithValue("@no_bed",
Convert.ToInt32(dataTable.Rows[0][2]));
ada.SelectCommand.Parameters.AddWithValue("@charge",
Convert.ToInt32(dataTable.Rows[0][3]));
ds = new DataSet();
ada.Fill(ds);
return -1;
}
i am not getting any error but value is not insert to my database
i have a dataTable, which contains a column which has 100 rows, now i want to add those rows in ArrayList, but not with the Add Method, because i have to use for loop for adding records one by one, so i want to prefer addrange method of arraylist, so it is possible to add records in arraylist from DataTable using AddRange.
Below is the code which i am using.
Dim adapGetImages As New SqlDataAdapter("select distinct FileName from Files where Filename<>'' and (RIGHT(FileName,3) = 'gif' or RIGHT(FileName,3) = 'jpg' or RIGHT(FileName,3) = 'bmp') order by FileName", connection)
Dim dtGetImages As New DataTable()
adapGetImages.Fill(dtGetImages)
ArrayList1.AddRange(dtGetImages.Rows[0][0].ToString())
The last line is where i am stuck. as if i run this it will just add single row, and if i say dtGetImages.Rows.ToString() then this will just Add System.DataRow in Arraylist and not its content.