iam working with gridview in asp.net3.5,Sqlserver2008 I am retrieving data from a SP into a datatable.i need to store this table into gridview. but am getting the last row from my datatable into my gridview.
here i need to add each row to the datatable.
my grid is like this:
[Code]....
I have a following scenario - A use selects criterias from a webform (C#) - a result is then returned from the sql. Say, to start, there are 2000 data returned from the sql and are stored in a dataset.
Now, the user wants to choose a number of drops (up to 6) - with the number of drops selected, they can enter their own quantity in each box. So, they can divide the 2000 records into 6 different drops. With each drop, there is campaigncode created based on the mail date and the job number they provide.
So, now i have the 2000 records in a dataset. What i want to do is loop through the gridview where the user fill out the quantity depending on the number of drops (for ex: if they say 3 drops, then there will be 3 rows in gridview with 3 quantity box to fill).
In the loop, I am getting the quantity, dropdate and the job number. The Campaigncode is created as well. Then, i am looping through the datarow in the dataset; updating the Campaign Code column with the CampaignCode for the number of records thats set in a loop. It works but the Campaign Code is not populated for the next set of records.
Here is the code:
[Code]....
I think its this line right here thats causing the problem. But i don't know how to tweak this so as to accomplish what i want to do.
if (Convert.IsDBNull(DSAEFile.Tables[0].Rows[i]["Campaign Code"]))
I have one big DataTable with X rows. I want to select Y rows from it and bind them to a new ViewList. While doing it, I want to delete these rows from the DataTable (Having X - Y rows).
What is the best and fast way to do it?
I don't know if it is better to create a new DataTable to have the Y and after that bind them to a ViewList or something else?
I'm also looking for example in code how to select/delete rows from DataTable.
How can I continue to the next row in the foreach loop below.
[code]....
I get the usual system.outofmemoryexception with the code below.
Is there a way to do this in small chunks?
public static void Serialize(DataTable dt, string filename)
{
FileStream fs = new FileStream(filename, FileMode.Create);
BinaryFormatter bf = new BinaryFormatter();
try
{
bf.Serialize(fs, dt);
fs.Close();
}
catch (Exception)
{
fs.Close();
fs.Dispose();
File.Delete(filename);
}
}
I am using untyped database bind to gridview in an edit form. Now user makes some changes to that datatable (update, delete, insert). How do I detect which rows he changes and which rows he deleted (so I drop them from DB). I know it can be done easily via table adapters but I am supporting a previously built app using untyped datatables/datasets.
View 9 RepliesI'm trying to add new rows to a data table and then use the sqldataadapter update method bu fund some problems. First, I written this code:
[Code]....
Excuse me but the most part of variable are in italian, however I think it is possible to understand how does it work. If I execute this code I obtain this error:
System.InvalidOperationException: Update requires a valid InsertCommand when passed DataRow collection with new rows.
After this I added these lines of code just above the last line:
SqlCommandBuilder cb = new SqlCommandBuilder(adapter);
adapter.InsertCommand = cb.GetInsertCommand;
and I obtained this error:
Cannot convert method group 'GetInsertCommand' to non-delegate type 'System.Data.SqlClient.SqlCommand'. Did you intend to invoke the method?
Maybe this could be a simple questino, but for me it's difficult to do this action: I have a table in sql server 2005 with some records stored, for example 10 records. The primary key of this table, let's call it "Employee", it's a number field with an autoincrement constraint. I want to store more data into the table by using a OdbcDataTable object and OdbcDataAdapter and adding new rows to the datatable and afeter that use the "Update" method from the OdbcDataAdapter object.
The big deal is this: let's suppose that I want a add a new record to the datatable object, using any method or code sequence that you want. if I have 10 records stored on the data base table, when I retrieve this table schema by using the OdbcDataAdapter "Fill" method, I have a copy of the data base table schema in the DataTable object, right?. if I add a new row on the datatable object, it's suppose that the primary key column of that table must AUTO-INCREMENT the value of the key, I mean if the last value that I store on the table was the number 10 on the PK field, when I add a new row on the datatable object, the PK value on the datatable object must be the number 11 if the autoincrement constraint is present into the DataTable object, but in my case, it doesn't work
So, How can I define the conditions or set the c# data objects properties to wor in that way???. In this moment the PK column on the odbcDataTable doesn't auto-increment its value when I add a new row on it.
Please helpe with this.
PD: I have another question about the DataTable object, how many records can store this object?? I have some problems with this because sometimes when I use the Fill() method to get data into the DataTable or a DataSet object there's no problem if the Fill() method retrieves about 142000 records, but when I retrieve over the 145000 records, when I inspect the DataSet or DataTable object by using the debuging mode, they have null value. Any of you can tell me why this situation ocurrs??
I have one problem with my shopping cart that I really can't figure out all by myself.I want, if a item already exist in the datatable, the quantity to be updated for that item with the new number instead of creating the same item again.I have done a foreach loop because I think that is where I should start.Notes: MyRow[3] is the column holding the quantity.Code:
[Code]....
//Bengt
Existing records can be updatedNew records can be insertedAll existing records can be deleted & new ones can be insertedExisting records have a primary key field
New ones are just blank inserts
All this detail is stored in a data table. On form update I only want to update existing (only modified rows) & insert new rows. I have gone about loading the changed records in a new data table
DataTable changedRecordsTable = dataTable_old.GetChanges();
How do I compare it with all the records in the old datatable and pass them to the save query ?
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"
I have created a datatable with three fields namely TimeTask, TaskItem and Count (count of user) eg; {"12:30AM-01:00AM" , T1 , 3}.
dataTable.Columns.Add("Task Time", typeof(string));
dataTable.Columns.Add("Task", typeof(string));
dataTable.Columns.Add("Count", typeof(int));
dataTable.Rows.Add("12:00AM-12:15AM", "T1", 6);
dataTable.Rows.Add("12:45AM-01:00AM", "T1", 5);
dataTable.Rows.Add("01:00AM-01:15AM", "T1", 1);
dataTable.Rows.Add("01:15AM-01:30AM", "T2", 4);
dataTable.Rows.Add("01:30AM-01:45AM", "T2", 9);
GridView1.DataSource = dataTable;
GridView1.DataBind();
In this there is no task for the TimeTask "12:15AM-12:30AM" and "12:30AM-12:45AM" yet the TimeTask should be inserted as,
TimeTask TaskItem Count
12:00AM-12:15AM T1 6
12:15AM-12:30AM - -
12:30AM-12:45AM - -
12:45AM-01:00AM T1 5
01:00AM-01:15AM T1 1
01:15AM-01:30AM T2 4
01:30AM-01:45AM T2 9
How to chk for the missing rows? Is it possible to dynamically insert rows in an existing DataTable (No DataSource used) in this scenario.
i have gridview and having few rows. each rows have checkbox,textbox,combo in each column. how can i loop through gridview using jquery and access each elements in rows in loop for collection the value at client side by jquery.
View 3 RepliesHow do I loop the gridview to read or insert one row by one row?I have a database which has a Primary key. Currently,all the rows seems to appear at one time.Even when I use a counter,it did read one row from a textbox(which is for my testing to read one row) but in the database,it still inserts the whole rows from the gridview.I can't click button twice as it will occur an error "Primary Constraint".
View 6 Repliesi 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 RepliesI have a gridview in which I add extra rows manually (besides the regular bound rows).The manually added rows do not have a textbox, they are just text.The normal rows hold a textbox "minprice".Now when the user clicks the NewGarage button I want to loop through the gridview and get the values in each row for the minprice textbox.
Gridview structure looks like this:
MANUALLY_ADDED_ROW
NORMALROW <= enter value here works
MANUALLY_ADDED_ROW
NORMALROW[code]...
I currently have a GridView control on my aspx page with paging enabled and I need to loop through the entire row collection/count to process the selected records. With my current code, it will only loop through the current page of GridView row.
foreach (GridViewRow data in grid.Rows)
{
//here is my code
}
I tried to keep all the data in the gridview when paging, but when I try to save it, which appears in my database only when it is active pages .. ex: in the first and second page I have data in gridview .. when I save, the stored in the database only the first or second page of course .. so I like to keep all my data in gridview when paging..
i have tried using : foreach (GridViewRow row in GridCustomColumn.Rows) but it's not working..
string sql1;
foreach (GridViewRow row in GridCustomColumn.Rows)
{
[Code].....
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 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.
I have a datatable with 50+ rows I want to get the Top 10 rows and display.
View 1 Replies[Code]....
In above query I want to have top 10 rows as well as count of all rows.
I have a datatable with 1 record only, can I reference the data in the row without a for loop? I can get to the data by using the following code, but it would be nice if I didn't have to use the For loop.
foreach (DataRow row in dataTable.Rows)
{
string name = row["Name"].ToString();
string id = row["ID"].ToString();
}
I have only one row therefore may i get its records without for loop or foreach loop
I want to reorganize datatable rows using the code below :
[Code]....
but in the output the inserted row(datarow) is blank ?
I have 7 different category pages and although the Cart Page shows selected items From the 1 category , when i select other category page it only shows the selections of first page and not the others.
How can i make the DataTable Draw values from all the pages and display them on the Cart? code in first category
[Code]....
i m trying to put the same in each category but it doesn'twork