DataSource Controls :: Convert An Ienumerable To A Datatable() VB.net?

May 24, 2010

I am having trouble converting a ienumerable to a datatabe here is the code:The problem is in the following line-

ViewState("dt") = elements.CopyToDataTable()
Dim dt As New DataTable
Private Sub DisplayAuthorLastName(ByVal strLetter As String)

[code]...

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Convert Datatable To IENumerable?

Feb 10, 2010

Dim list As List(Of DataRow) = dt.AsEnumerable().ToList()When I compile I get the error:
'AsEnumerable' is not a member of 'System.Data.DataTable'.I added Imports system.data.datatableextensions to the file..This code works when I run it on a asp.net project But when I use the same code in Website it returns the above error..Can anyone help solve this error.

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ADO.NET :: WCF Entity Framework - Convert IEnumerable To Datatable?

Oct 13, 2010

We are using WCF and ADO.NET entity framework in our ASP.NET 4.0 application. we are using Entity Framework in our WCF service to execute a storedprocedure and return the results.

[WebGet]
public List<Cs_MT> GetSearchResult(string emailId, string localTitle, string colorGrouping)
{[code]....

We are calling the WCF service from our client application and get the results as IEnumerable

IEnumerable<GetSearchResult_ByEmail_Result> SearchResult = dsContext.Execute<GetSearchResult_ByEmail_Result>(new Uri(url));

I want to loop through the records and form a new table. How to loop through it and read the values?Or How to convert IEnumerable to Datatable?

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DataSource Controls :: Delete The Rows Present In The DataTable From IEnumerable DataRow

Jul 22, 2010

I want to delete the rows present in the DataTable by using LINQ (with out looping)

The deleted rows will be come from a LINQ as below

IEnumerable<DataRow> MobileQuery = (from d in dtBillDetail.AsEnumerable()
where (String.Compare(d.Field<string>("Destination"), "MOBILE", StringComparison.InvariantCultureIgnoreCase) == 0) select d );

The DataRows present in the "MobileQuery" should be deleted in the DataTable "dtBillDetail"

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DataSource Controls :: Convert Linq Query Into IEnumerable DataRows?

May 19, 2010

IEnumerable<DataRow> query = (from obj1 in objeDC.tmpPolicyRenewals.AsEnumerable()
where obj1.AgentCode == "Admin"
select new
{
obj1.Product,
obj1.PolicyNo,
obj1.Insured,
obj1.EffDate,
obj1.ExpDate,
obj1.GrossPrem,
obj1.Status
}) as IEnumerable<DataRow>;

Getting null value. whats error ?

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DataSource Controls :: How To Implicitly Convert Datatable To String

Jul 30, 2010

I'm having a problem with reading a string from sqlserver database and use it as the text of a label,

getDescTableAdapter gd = new
getDescTableAdapter();
Label2.Text = Convert.ToString(gd.GetDesc(pid));

what i get in the form is: getDesc ! everything is right in the dataset and if i bind it to a gridview it works fine but when i convert it to string it seems it converts the table adaptor's name instead of the value.ance

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DataSource Controls :: Convert LINQ Singleresult Set To DataTable?

Jun 10, 2010

I have store procedure which return result set. I have used LINQ datacontext object to get the result set from this store procedure, which returns the result set in IsingleResult format.I bind this IsingleResult to my gridview.

I want to convert this IsingleResult into DataTable format so I can sort the gridview.

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Forms Data Controls :: Convert Repeater To DataTable Or Other Datasource?

Jan 22, 2010

Can we convert the Repeater items back to a datasource?

At post back, I want to convert the repeater items into a datatable which is a datasource was given to the repeater.

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Forms Data Controls :: Convert A GridView.DataSource To DataTable Or Dataview?

Jul 25, 2010

I have one gridview and i want to take all the values in a datatable or dataview.

I tried like this

DataTable gridTable = (DataTable) dataGrid1.DataSource;

but gridTable is showing null, it should not show null because gridview has lot of records with 3 columns

Is there any way i can convert/store a gridview.Datasource records in a datatable or dataview?

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Forms Data Controls :: Datatable To Ienumerable - Not Getting Results In The Gridview

Mar 14, 2010

I have a dataset that has two datatables. In the first datatable I have EmpNo,EmpName and EmpAddress. In the second datatable I have Empno,EmpJoindate, EmpSalary. I want a result where I should show EmpName as the label and his/her details in the gridview. I populate a datalist with the first table, and have EmpNo as the datakeys. Then I populate the gridview inside the datatable which has EmpNo,EmpJoinDate and EmpAddress. My code is

[Code]....

My Design is

<asp:DataList ID="Datalist1" runat="server" DataKeyField="EmpNo">
<ItemTemplate>
<asp:GridView ID="Gridview1" runat="server">
</asp:GridView>
</ItemTemplate>
</asp:DataList>

I do not get results in the gridview, instead have errors. I tried then placing the bound field

<asp:GridView ID="Gridview1" AutoGenerateColumns="true" runat="server">
<Columns>
<asp:BoundField DataField="EmpNo" />
</Columns>

It throwed an error stating / A field or property with the name 'EmpNo' was not found on the selected data source.

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How To Convert List Into Ienumerable

May 1, 2010

I am using LINQ for data connectivity and have made class which return me the result set into presentation here is the syntax:-

public List<ClsDermaInvestigation> MthdisplayInvestigation()
{
List<ClsDermaInvestigation> lstinvst = new List<ClsDermaInvestigation>();
ISingleResult<USP_Patient_Dermatology_InvestigationResult> investresult = objderma.USP_Patient_Dermatology_Investigation(PatientID, RepDate, Hb, TLC, F);
foreach(USP_Patient_Dermatology_InvestigationResult rel in investresult)
{
ClsDermaInvestigation objinvest = new ClsDermaInvestigation();
objinvest.Albumin = Convert.ToDouble(rel.Albumin);
objinvest.ALP = rel.ALP;
objinvest.ANA = rel.ANA;
objinvest.Date = rel.date;
lstinvest.add(objinvest)}return lstinvest}
This list is returning me the result.It works fine but in 1 case am using the same list to bind my Date dropdownlist.
//aspx.cs code
List<Dermatology.ClsDermaInvestigation> objlstinvest = objinvest.MthdisplayInvestigation();
//Array s = objlstinvest.to
drpDate.DataSource = s;
drpDate.DataTextField = "Repdate";
drpDate.DataValueField = "Repdate";
drpDate.DataBind();

But it throws an error that list does not conatin a property with "Repdate";. How can i bind this list with dropdownlist?? Can i convert it into some type so that i would be able to bind it??

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DataSource Controls :: Linq To SQL Does Not Implement System.Collections.IEnumerable?

Oct 21, 2010

I am having a lot of the same issue as this poster did with errors on initializing type.

I am trying to learn linq and am about ready to give up - don't get how this is easier...

I'm trying to do a simple update to product names in the product table based on the manufacturer ID

In order to do this I am looping through each record. I was initally successful with changing all names in the column but when I try to query the data, I continually run into multiple problems.

The following poster has had the same issue I have but his solution isn't working for me.

[URL]

I keep getting the same error on the opening bracket on the select statement in the SelectByManufacturerID function...

Error 1 Cannot initialize type 'DataBaseDataManagement.ProductName' with a collection initializer because it does not implement 'System.Collections.IEnumerable'

Button that does the actual updating...

[Code]....

The function that the button calls to get the query... ERROR

[Code]....

The class located in Query.cs...

[Code]....

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DataSource Controls :: Ienumerable For Dropdown - Loop Through The Values Coming From Function?

Feb 8, 2010

Here is my code, using LinQ to get the data from database.

public IEnumerable categoryData()
{
db = new DBModelDataContext();
var cat = from c in db.Categories
select new { c.categoryname,c.categoryid };
return cat;
}

trying to get the values (categoryname and categoryid) into textfiled and valuefield of dropdown list.

dt = new clsData();
ddlCategory.DataSource = dt.categoryData();

what is the code that i need to write to assign the categoryname to textfield and categoryid to valuefield. I mean how to loop through the values coming from the above function.

ddlCategory.DataBind();

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Forms Data Controls :: How To Accept An 'object' As A Datasource (IEnumerable Or IList)

Nov 19, 2010

How do I accept an 'object' as a Datasource (IEnumerable or IList) and loop through the keys/values? I want to be able to pass anything that implements either IEnumerable or IList.

This same functionality exists on all of the .Net DataBound controls and I'm trying to figure out how it's done.

[Code]....

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DataSource Controls :: Data Source Is An Invalid Type Must Be Either An IListSource, IEnumerable, Or IDataSource?

Nov 9, 2010

I created one stored procedure.

/*
SP Name :sp_Par_SearchCourseFinder
Author :Mr.Ravichandran

[code]...

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DataSource Controls :: How To Copy The Data From One Datatable To Another Datatable Based On The Schema

Jan 11, 2010

i have the dataset with one table.Table contains three column like 'Name','Location','Pin'.I would like to move the data from another table based on schema.

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DataSource Controls :: How To Get Records In 1st DataTable But Not In 2nd DataTable

May 14, 2010

I have two datatables, I want to get all records which are in one datatable but all matching records which exist in another datatable should not be available.

In terms of set, you can say that record which are in 1st datatable but not in 2nd DataTable.

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Data Controls :: Convert DataTable To String In C#

Jun 16, 2015

[WebMethod]
public String AuthenticateUser(String username, String password)
{
con.ConnectionString = ConfigurationManager.ConnectionStrings["cn"].ConnectionString;
if (con.State == ConnectionState.Closed)
{
con.Open();
}

[code]...

Also how will i write the code on the page where i am reading the returned value from this webservice?

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Data Controls :: Convert DataTable From Database To Text String Using C#

May 7, 2015

I have a products table with 3 fields name, price and quantity, I need to fill a datatable with those 3 fields and using a foreach build a chain. I build my chain currently using a datagrid with my following code

this code work good.

string item_name;
string amount;
string quantity;

[Code]....

but I like to form my chain directly from datatable, not rely on a datagrid.

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Forms Data Controls :: Convert DataTable To DataView VS 2005 (.net Framework 2.0)?

May 4, 2010

I am doing GridView Sorting without ObjectDataSource. For this requirement I need to convert DataTable to DataView, I know I can do that in VS 2008 but How can I do this in VS 2005.

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How To Convert The Datatable To JSON

Mar 30, 2011

I'm trying to populate the slickGrid with an ajax call.

Code:
<script type="text/javascript" >
$(document).ready(function() {
var params = {};

[code]...

my function returns a datatable. But I need to convert the datatable to JSON.

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ADO.NET :: How To Convert IList To Datatable

Nov 5, 2010

i m developing a Web Application with C# (with NHibernate)

want to bind the IList with the gridview ...for that i hav to convert IList to datatable .

IMPORTANTLY my Database table that i want to pull(through Nhibernate) contains 3 foreign keys now wat to do convert ?

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How To Convert List To Datatable

Jul 27, 2010

Possible DuplicateNET - Convert Generic Collection to DataTable
i want to convert list datatype to datatype.
wrote the function

static DataTable ListToDataTable<T>(IEnumerable<T> list)
{
var dt = new DataTable();
foreach (var info in typeof(T).GetProperties())
{
dt.Columns.Add(new DataColumn(info.Name, info.PropertyType));
[code]...

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ADO.NET :: Convert From Table To DataTable?

Aug 14, 2010

I have AspTable which is full of data

Table TableDDl = new Table(); and I have DataTable

DataTable DataTableDDl = new DataTable();

who can I put the same data from AspTable in the same place in DataTable ?

Ex...If I have "Hello" in (third row and first cell) in AspTable....Who can I put "Hello" in (Third Row and First Colum in DataTable) >>>But for add data...

I try

DataTable1.Load(Table1);

But it didn't work because it want a reader....I want the same thing but With AspTable

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DataSource Controls :: Sort By Col. In Datatable?

Feb 23, 2010

I have seq no col in the datatable.how can i order by the seq no so that re-arrage the datatable.or other method have the sort function.and then bind to repeater.

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