How do i achieve simple sql query like
delete from Users where userCity='Munich'
with DataTables ?
p.s. without using Linq or something like that simply because i do not use it though project.
I have a DataTable of available time slots. I have another DataTable of reserved time slots. I need to remove from the list of available slots the ones that have been reserved. The blocks are in 15 minute increments, but one of my problems is that the reservation can be longer than 15 minutes. I've had some luck removing one or two, but not all of the required columns.
Here's my code (it doesn't work right now).
[Code]....
I want to add and remove columns on specific conditions. how it's possible.
Alert: Add and remove not Hide and show...
how can i only display the name columne once in the repeater, when more than 1, then hidden the label
now my table are:
name col. age
mary 11
mary 16
Sam 18
now i would like to hidden the duplicate name as below:
name col age
mary 11
16
Sam 18
how can i manage the datatable to prevent duplicate name to bind to repeater.
'DataTable' is an ambiguous reference between 'System.Data.DataTable' and 'Microsoft.Office.Interop.Word.DataTable'
View 3 RepliesI was reading: [URL]
But I have give a compilation error:
CS0246: The type or namespace name 'DataTable' could not be found (are you missing a using directive or an assembly reference?
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.
View 2 RepliesIf I am passed a datatable and I cant change the column structure..is there anyway to set an existing column to a Primary key so I can easily Find() the row I am looking for?
View 1 Repliesim trying to copying specific record from one datatable to another datatable i used below code
public System.Data.DataTable selectspecificdatarow(System.Data.DataTable dtg, int count, int startindex)
{
System.Data.DataTable dtn = dtg.Clone();
for (int i =startindex; i < count; i++)
[Code]....
its taking too long time in cloneing is there any better way to do this task which is Time effecent
how do I write a code for the remove button I want to remove the row where the remove button is clicked. he code for my webform is below
html code for remove
<td>
<asp:LinkButton runat="server" ID="lnkbtnRemove" Text="Remove" OnClick="lnkRemoveGuest_Click" ></asp:LinkButton>
[Code]....
how to join two datatable datas into one datatable to show in one gridview
i.e in 1 datatable i have username and pwd and in another datatable i have that user details. how to show all these in one datatable to get those values display in gridview(asp.net)
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.
how to copy data from datatable to table in dataset i ry this but its readonly property
ds.datatable1=newdt.copy
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.
how to copy only the columns in a DataTable to another DataTable?
View 2 RepliesI have a datatable with 17 columns and a bunch of data. I wnat a datatable with only 6 of the columns and the data for those 6 columns. So I need a subset of the original datatable. How do I loop through the original datatable with 17 columns and end up with a datatable with only the 6 columns I want with the corresponding data for those 6 columns?
View 4 RepliesBelow is a beginning attempt to increment through a DataTable populated by a Stored Procedure and create a new DataTable where every Category is represented by exactly four products. I need to add dummy product entries for some and skip over those with over four products.
A) - I think I understand the basics but this builing from scratch is not my practice.
1) I do not know how to query a previous row in reference DataTable.
2) I do not know how to jump to next row from IF construct.
3) I hope I am able to build a DataTable row by row.
4) Partial sample data is at bottom of pseudo code
[Code]....
I am trying to remove the cache using the HttpRuntime.Cache.Remove(key) but invain. I wonder what are the best practices for using HttpRuntime.Cache.
View 2 RepliesThere has to be an easy answer:I want to loop through multiple datatables... example:
for (int i = 1 ; i < 7 ; i ++ )
{
DataTable dt = (DataTable) "dt" + i.toString();
// do something with DataTable dt1 as DataTable
// ie...
int x = dt.Rows.Count
}
The above code obviously does not work.. but how do you find a DataTable like you do FindControl with WebControls??
I have the following line of code.What I would like to do is if any of the _ Order.value are empty then not to have the "," displayed at the end of it because if they were all empty then it would look like ,,,Does anyone know how I can remove if the value before it is empty?
[Code]....
Am having the same scenario.. AM creating dynamic text box and remove button row by row. if i click the remove button then the particular row will be removed.. for validation purpose , i renamed the controls after deleting the row.. if i have 3 rows and if i delete the 2nd row then after deletion i'll rename th rows to 1 and 2.. its working.. but as the row 2 is in view state its still displying the contents of row 2 though it binds the row3 details.. how to remove the particular row and renaming accordingly..
View 1 Repliesi have a textbox showing -450 as output but i want it displays out put as 450 by removing - from 450 ....
View 1 RepliesI have a view with
<%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<IEnumerable<StudentInfo>>" %>
in my view if i have IEnumerable I can do foreach..
but before that i need to access the properties for StudnetInfo..
StudentInfo clas having
Public class StudentInfo
{
public Studentdetails sd {get;set;}
public classDetails cd {get;set;}
}
<% foreach(var e in Model){%>
<div>
<%=Html.DisplayFor(x=>e.StdentEdit) %>
<div>
<span>
<% Html.RenderAction("Details", "Home", new { @t = e }); %>
</span>
</div>
</div>
<% } %>
I have this string at the output :
Round Base<img src='./1_sm.jpg'>
72" Pole<img src='./pole72.jpg'>
AFC22<img src='./afc22.jpg'>
This are in array list
I want to remove string start from <img src=???>.
I want final output like this:
Round Base
72" Pole
AFC22
how can I remove the protocol from URI? i.e. remove HTTP
View 4 Replies