Data Controls :: Check If Particular Value Exists In DataTable (DataSet) Using C#
May 7, 2015check if variable exists in dataset ?
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Data Controls :: How To Check Whether DataTable (DataSet) Has Rows In C#
May 7, 2015DataSet ds = new DataSet();
string qry = "select Name,Section,present from presentdays where id='" + TextBox1.Text;
qry += "'";
ds=mvl.GETDS(qry);
foreach (DataRow dr in ds.Tables[0].Rows)
{
TextBox2.Text = dr["present"].ToString();
TextBox12.Text=dr["Name"].ToString();
TextBox13.Text=dr["Section"].ToString();
}
there is no data in id='1'i need to throw the error as there is nothing is found in id='1'
Check If Row With Particular Id Exists In Datatable?
Mar 20, 2011i have two datatable, while adding rows in second datatable, i want to first check whether the id in the second datatable matches as in the first datatable, if not only then it should be added in the second datatable, else it should display a message...
i dont have any Primary Key defined on any column, so the rows could be repeatative.
Forms Data Controls :: Check If A GridView Exists?
Dec 9, 2010I have a page with a simple textbox, when an OrderNo is entered in te textbox the page is populated with 2 or 3 gridviews depending if the order has items reserved or on back order.
GridView1 has data about the order, like status, payment details.
GridView2 has data about orderitems, each row displays an item from the order with stock and order quantities
GridView3 has data about backorders, each row displays an item from the order with quantity reserved and quantity on back order. As is no data for GridView3 if order is not on backorder I thought that I can enclose my code inside an if block
if GridView3 isnot nothing then
'getting some data from the cells in GridView3
endif
but the code still executes.
Data Controls :: Check Whether Value Exists In DropDownList Items
May 7, 2015how to check whether a dropdownlist contains particular value for the below codei have a value name
manager="manogar1";
if(mydropdownlist valuecontains the value "manogar") {
} else {
}
Data Controls :: Check If Table Exists In Database Or Not
Apr 27, 2016I need to check whether table named 'CSE' is existing in database or not. if it exists, i want to drop the table 'CSE'.
View 1 RepliesData Controls :: Check (Validate) If Record Exists In GridView When Adding New Row?
May 7, 2015I would like to check if a particular value already exist in the database Gidview row. If the value already exist, tell the user that he has already entered the record and don't save. otherwise save the record. In my case I want to check the "Random number".
<asp:TextBox ID="txtRandomNumber" runat="server"></asp:TextBox>
Maybe it could be done with a foreach loop statement.
Forms Data Controls :: Check If Data Exists In Database?
Aug 19, 2010I have a form for data entry which has a checkbox for featured item.
Only one feature item should exists in the database.
How can I check when doing the insert if another item in the table is a feature item?
I would likt to deactivate the one as feature and activate the new one.
Data Controls :: Get Top N Rows From Datatable Or DataSet In C#?
Jan 19, 2012I have a datatable with 50+ rows I want to get the Top 10 rows and display.
View 1 RepliesHow To Copy Data From Datatable To Dataset.datatable
Oct 31, 2010how to copy data from datatable to table in dataset i ry this but its readonly property
ds.datatable1=newdt.copy
DataSource Controls :: Is Datatable Data Store In Dataset
Apr 24, 2010is datable data store in asp.net dataset.. ?
View 1 RepliesForms Data Controls :: Dataset / Datatable According To Pagesize Given?
Mar 26, 2010I need your help / guidence for doing custom paging in c#, through sqlserver. so that i can have data in dataset/datatable according to the pagesize given, not all the data in dataset. some code /url .......with full discrption if possible.
View 12 RepliesData Controls :: Export DataSet Or DataTable To PDF In (WinForms) Application
Mar 31, 2014I want to get print out for Dataset which creates a pdf file as out put.
View 1 RepliesData Controls :: Fetch Top N Records From DataTable Or DataSet In Net Framework 2.0
May 7, 2015Aspx code:
MembershipUser m_user = Membership.GetUser();
DataTable dt = new DataTable();
dt.Columns.Add("SenderUser");
dt.Columns.Add("RcvUser");
dt.Columns.Add("Message");
foreach (ListItem li in lst_Users.Items) {
[Code] ....
I am calling "Application object" from above aspx page into web service page as below:
[WebMethod(EnableSession = true)]
[ScriptMethod(ResponseFormat = ResponseFormat.Json)]
public string WebMessage() {
List<string> list = new List<string>();
DataTable dt = ((DataTable)HttpContext.Current.Application["Message"]);
[Code] ....
I want to know that the approach im using in Web service page to fetch top 5 messages from Datatable is correct or not? How to do that without using LINQ as I am using framework 2.0 ...
Data Controls :: Pass DataTable Or Dataset As Parameter To WebMethod Of WebService
Mar 16, 2014can datatable pass to web service as input parameter? i have a scenario to pass values as datatable to web service. eg as follows
when Invoice or Bill is entered, I want to send the entered data as datatable to web service to insert into another application.
Data Controls :: Generic Method To Bind DropDownList With DataTable Or DataSet
Sep 4, 2012i have 2 dropdown list and i need to create a Generic method so that I an reuse it...
View 1 RepliesForms Data Controls :: Use Dataset And Datatable To Bind Data To A Gridview?
Aug 27, 2010on which all conditions we use dataset and datatable to bind data to a gridview?
View 2 RepliesForms Data Controls :: Bind Data From DataSet (DataTable) To A Selectrow DropDownList In GridView?
Nov 19, 2010I have a Gridview and two link button in that GridView , one link button click is to add edit row ( Edit ), one link button click is to select row ( Select ). I have a dropdownlist inside row which selected when i click link button Select in the gridview edit template, as of my business logic i need to show the dropdownlist only when the user clicks Edit button and when the user clicks Select button . That mean when the user clicks Select button then they clicks Edit button on the gridvview i should allow him to edit the dropdownlist (showing the value to the user through a label).
ASPX CODE
[Code].... C#
When I click Select link button , then I click Edit link button . They have errors : Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index" I don't know what error?. How to fix it
Forms Data Controls :: How To Add A Data In Datagridview Without Using Datatable Or Dataset
Feb 26, 2011i am using vb.net 2008 i need to know about datagridview ......Is it to possible to add a data through vbcode in datagridview without using any datatable or dataset....
View 1 RepliesForms Data Controls :: Check If Item Exists In E.item.dataitem?
Oct 27, 2010I use a ItemDataBound for a repeater.But i use 2 kinds of linq querys to bind it.Some of them has a MerkID, and some doesnt have this item.So its easy i need to do this:
if(e.Item.DataItem.Contains("MerkID"))
{
//Code for linq query 1
} [code]...
So of course the if selection doesnt work, but how can i do that? I already tryed this:
DataRowView drv = (DataRowView)e.Item.DataItem; if (drv.Row.Table.Columns.Contains("MerkID"))
But that doenst work because he cant convert it to a datarowview because its a linq class.So what to do? Right now i use a try and catch, but there are better solutions i guess...
DataSource Controls :: How To Check If Record Exists
Jan 6, 2010Just have a problem, I want people to join a mailing list, I just have a textbox and button. When a user enter's their email address, the address and time are inserted into a database. However, if the same email is added again I would like for a message to appear saying the record already exists.
Can someone show me how to do this, here is my current code:
[Code]....
Forms Data Controls :: Update Datatable When User Click Check Box
Jun 3, 2010I have gridview wich bind with dynamic datatable.
<asp:GridView ID="grdCountries" runat="server" AutoGenerateColumns="False" ShowHeader="False" OnRowDeleting="grdCountries_RowDeleting" DataKeyNames="country_id" BorderStyle="None" GridLines="None">
DataSource Controls :: Is It Possible To Check If A Sqlparameter Exists Before Adding
Apr 17, 2010I want to check if an sqlparameter exists before adding a new one so I don't get the error - @param was supplied multiple times. IS this possible?
View 7 RepliesDataSource Controls :: Check If The Particular Values In A Table Exists?
Jan 5, 2010how to check if the particular values in a table exists?
if it is not existing i need to insert that values in the table?
VS 2010 - Return Data Reader Or Dataset / Datatable
Dec 18, 2010Had a datareader question.
[Code].......
Return myDataReader I have a function which is retuning a datareader to various sections of my website which is then being bound to dropdown lists, gridviews, etc. Normally the last line in a function when is the data reader and connection getting closed? Is it best practive to return a data reader or a dataset/datatable (or something even better than these two)?
