I wanna iterate the "DataColumn" values, I have retrieve data column from a dataSet.
GridView1.DataSource = ds.Tables[0];
DataColumn colt = ds.Tables[0].Columns["dorc"];
the dorc field is a boolean value, I want to replace the boolean value from:
true-->debit
false-->Credit
But I can't access the Columns["dorc"] values..
how to retrieve all records of dataset for calculation with each record? with sample coding.
View 3 RepliesI dont know why my GridView.DataSource is become nothing when the Page.IsPostBack = true.What i did is bind the dataset to the GridView.DataSource when page load. Then when the button click event is trigger i need to get all the records from GridView. But when i debug and check i found that the GridView.DataSource is become nothing. how should i get all records from the GridView and assign to dataset. I'm using VB.net to work on.
View 6 RepliesIs there any method by which we can retrieve random data from a dataset or rather directly from a table.
For example, I have around 30 questions in my table, I just wanted to display 20 among them and that too in a random order without the same item repeating. Can we achieve this using SP or through some Dataset manipulation?
I combined three columns into 1 column to customize the DataTextField of my asp:RadioButtonList.
I'd like to format Date (MM/dd/yyyy) and Time (h:mm tt).
This is the code:
[Code]....
How to retrieve the data from the session (Dataset) and save it into a database
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I'm building a Remoting Demo, and here's my scenario:
There are 4 projects:
ServicedCOM: This project I've built a ServicedComponent, this component using for access data from database.
RemoteLoader: I using this to load ServicedCOM to RemotingServer.
RemotingServer: This is an console application, and this application can be running from another computer.
WebApp: Client, this is inteface using for End User.
and my results: I can access and retrieve data with function is called SpeakHello (test function), but I cannot do the same thing to get sectors using this model, I think I'm doing something wrong. and here's my code snippet:
1. I have a ServicedCOM and a function to get Sectors is called GetSectors (I test OK)
[Code]....
[Code]....
2. I have a Remote loader
[Code]....
3. And here's RemotingServer
[Code]....
4. And the last is Client
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I am trying to generate all days of between two dates, into a datatable (from 2 Textbox's querry).
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I have a detailsview, template as follows:
[Code]....
Codebehind: creating dataset, getting data from sql with adaptor and filling into dataset object, then setting detailsview's datasource.
I add 2 button to above template to able to edit data at asp page, and added event handlers:buttons:
[Code]....
My question is, what to do inside the detailsview update event function to able to edit and update data. My method can be wrong too.
I have created a Dataset object (XSD file) whithin it there is a procedure called InsertWebsite.
In my code, I call this like this:
[Code]....
When I execute the commans it retrievs value "1" which is not the actual ID genereted by Insert event.....
How can I retrieve this ID and stll using the current design?
How can I add an array of string to data column of a an empty data table in asp.net?
View 1 Repliesi am trying to create a datatable entering the columns that i create before, but i have a problem, the dataColumn doesn't have the required data, there is a AllowDbNull but it doesn't work.
Then i would like to add other restrctions like MinLegth.
Does anybody know how to do this?
i have image path name in database and i am fetching it this way.
con.Open();
string img= "select imgPath from Tbl_Image where imgId='1'";
SqlCommand cmd = new SqlCommand(img,con);
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
con.Close();
i got path name in ds. now my question is how to assign that path to my image.
//imgCurrent.ImageUrl
how to retrieve a value from a typed dataset. I am trying to retrieve a value from a row within a row return from a tabale adapter method. Example:
Dim transAPI As New PN_TransactionBLL()
Dim trans As PN.RetrieveGEmailDataTable = transAPI.getGEmail(itemtId)
The tabeadapter method retrieves 1 row of data and I would like to pull the values retrived such as "trans.rowproperty"(if thats the correct syntax) where "rowproperty" would contain the actual value returned.
I have Dataset which filled with the Data of All User Or Particular one User.
I have to retrieve only one field from that Dataset, What is the Optimal way of doing that.
I am currently using foreach to retrieve the record.
If possible,Provide some examples of doing that in smart way.
i am using sp_helptext to retrieve a query in a dataset. the problem is, i am getting line breaks when retrieving the query in the dataset.
how to retrieve the query into dataset without the possibility of any linebreaks i.e. the query should be retrieved as it has been written by the user.
i have retrieved data from the database and stored in dataset.i have to add an additonal row to it,update the data in data set and delete data from the data set..
View 6 Repliesi have 103 column in database 1 column is id, 1 is user ,1 datetime, 100 button on webpage 1 textbox to input value , button1 clicked then value in textbox will insert into database with user:=user.identity.nam datetime=datetime.now colum4 will get value from textbox......button2 for colum2 and buton100 for column100, if i use dataset i need 100 datataset, some other way to solve it ??
View 2 RepliesI have a DataTable that I am creating and binding to a GridView. Currently the headers do not have any spaces and it makes it hard to read. I want to space them out but I'm having a minor issue. What I am trying to accomplish :
Dim dc As Data.DataColumn
dc = New Data.DataColumn("Updated Date", System.Type.GetType("System.String"))
dt.Columns.Add(dc)
What I currently have :
Dim dc As Data.DataColumn
dc = New Data.DataColumn("UpdatedDate", System.Type.GetType("System.String"))
dt.Columns.Add(dc)
I know that I can set the HeaderText in the columns declaration like below, but I won't know how any columns I am going to have. And would rather the columns be generated automatically.
<Columns>
<asp:BoundField DataField="UpdatedDate" HeaderText="Updated Date" />
</Columns>
I'm using a DataGrid with edit functionalities in my project. It's handy, compared to having to edit its source data manually, but sadly, that means that I'll have to deal with validating user input a bit more.
And my problem is basically just that. When I set my DataGrid to EDIT mode, modify the values and then set it to UPDATE, what is the best way to check if a value that I've entered is, in fact, compatible with the corresponding column's data type?
i.e. (simple example)
// assuming
DataTable dt = new DataTable();
dt.Columns.Add("aa",typeof(System.Int32));
DataGrid dg = new DataGrid();
[Code]....
I am retrieving data from a web serivce and storing the data into a dataset.
I'm then populating a gridview with the data from the dataset.
Before each row of data is displayed on the website, I need to check and make sure the user has proper permissions to view that data.
Can this be done with a gridview(or any other .NET data control)?
Or would I need to loop through the data manually, and then write each row out manually?
How do I go about adding a ButtonColumn to a DataTable.
I am basically using a DataTable as the DataSource of a DataGrid and need to add a ButtonColumn to the DataTable so that when I DataBind it to the DataGrid it all works.
Although when I try
dt.Columns.Add(buttonColumn)
This is not allowed. It has to be a basic DataColumn.
In my project I work with Entity Framework (LINQ to ENTITY). I only have ADO.NET Entity Data Model and a DAL (Data Access Layer). I also get the data due a WCFClientService. I have a gridview that needed to be exported in Excel.
FlexCel is a tool for generating Excel files based on a template. The only thing I see in demo's is that they work with DataSets.
Is there a way to convert the data in my gridview to a virtual DataSet?
I've written the following method to get the data:
[Code]....
I am using visual web developer express 2010 and have two dropdownlists which are feeding parameters to my detailsview. both are set to appenddatabound "true" because I have added a % value texted " select all" to them. Now, before I added the 'select all' options I was able to configure my detailsview dataset query to bring over data using the AND statement which meant that the two buttons when placed on the same page brought over values to my detailsview where both criteria were present but when I try this when the wildcards are used with the select all option in the dropdownlists the same does not apply.
View 1 RepliesI have a dataset and i want to add a image in the dataset.
If i am listing office, airport i need to display the corresponding image before the data. I am using the webservice to get the data .
