ADO.NET :: Dataset Column Id Get Max Value In The Column?
Sep 8, 2010i have the following column "ID" in dataset: myDataSet.Tables("Table"), is it possible to read the columnd ID and get max id what is in the dataset.
View 6 Replies
Similar Messages:
Forms Data Controls :: Sorting A Column By Simply Clicking On The Column Rather Than Clicking On The Column Header?
Jan 14, 2010I am looking to sort a column on my gridview by simply clicking on the column rather than clicking on the column header. In the design I have been given, the column header will not be shown, and I need to be able to give the user to sort this column, by simply just clicking any where on the column.
View 2 RepliesC# - Best Way To Add A Column To An Existing Dataset
Jun 29, 2010I have two extremely long queries that I am running on multiple tables, using an INNER JOIN. The only difference between these two queries is that they take different input values for one of the WHERE clauses, which they get from two separate DropDownLists. The results of these queries are identical, save for the time1/time2 columns.string query1 = "select Name = t1.name, time1=(SELECT hours FROM table3 WHERE street=list1.selectedvalue), t2.address from [table1] t1 INNER JOIN [table2] t2 ON t1.param = t2.param ORDER BY Name"
View 1 RepliesEdit Dataset Column Value In C#?
Feb 2, 2010i have dataset having one table have 5 columns fill data from database.
When i run application datatable contains more than 50 rows, I would like to update value of datatable after getting data from databse. My requirements are This table have few cells having Null value, I would like to replace null with "-" ? One column is System.datetime datatype, where i would like to remove time. I would only like to have date?
Here i am thinking that i apply one loop of rows present in datatable and update cells accordingly. But i am searching any direct update method?
Asp.net - Dataset Column Always Returns -1?
Aug 20, 2010I have a SQL stored proc that returns a dataset to ASP.NET v3.5 dataset. One of the columns in the dataset is called Attend and is a nullable bit column in the SQL table. The SELECT for that column is this:
CASE WHEN Attend IS NULL THEN -1 ELSE Attend END AS Attend
When I execute the SP in Query Analyzer the row values are returned as they should be - the value for Attend is -1 is some rows, 0 in others, and 1 in others. However, when I debug the C# code and examine the dataset, the Attend column always contains -1.
If I SELECT any other columns or constant values for Attend the results are always correct. It is only the above SELECT of the bit field that is behaving strangely. I suspect it has something to do with the type being bit that is causing this. So to test this I instead selected "CONVERT(int, Attend)" but the behavior is the same.
I have tried using ExecuteDataset to retrieve the data and I have also created a .NET Dataset schema with TableAdapter and DataTable.
ADO.NET :: How To Read A Complete Column From The Dataset
Aug 14, 2010I want to read complete column from the dataset using select command or whatever without looping the rows of the table.Because in table i got 35000 records i only want to read a one complete column from the top to the end using dataset.
Eg: select column_name from table.
lly, dataset.tables[0].select["Column='Product'"]
I have tried with this but throwing exception.
How To Select A Part Of The Data From A Dataset Column
Dec 10, 2010I have a column in a dataset which shows the time as 9:16
On my UI, I have Hour dropdown and a Minute dropdown. I want to split the time such that 9 is bound to the Hour dropdown and 16 to minute.
DataSource Controls :: DAL Dataset Showing All The Column?
Aug 20, 2010I follow the tutorial and create DAL with Dataset. I created a Table Adapter with many column, but when i Call a simple Get for 2 column only. The system display 2 column and the rest column with empty data.
example: Table with 40 column define in Dataset in DAL. I have GetMember from Dataset with 40 column, some request only 1 column (with 39 empty), some request 22 column (with 18 empty column). Will this affact the performance?
.net - Get Identity Column Value In C# 'Dataset' - Access Database?
Jan 5, 2010I want to retrieve identity column value after running Insert or Update (using Access DB in C#). How can I do it?
i use a Typed dataset to fill and update...
ADO.NET :: Dataset Table Column To String Array?
Dec 14, 2010i have a dataset and a table into named Students. Students(StudentName, age)
i wanna name colunm to string array. but not use loops (for foreach..). is there any way?
string[] array = this.dataSetZLC.Student.StudentNameColumn..
SQL Server :: How To Copy One Column Data From A Table To Another Table Column With Rest Of The Column
Jan 16, 2011I want to copy data from a table[tblExcel][No.of columns:2] to another table[ev_event] which has 5 columns, 2 columns from the another table, 3 columns from user defined value
[code].....
Data Controls :: Dataset From SP Does Not Display Column List
Jun 8, 2012i am creating a dataset from SP Sp when executed in query analyser dislays the output but when i used the same for creating datset , its created but i dont get any columns i checked the xsd in notepad but there is no column source names
View 1 RepliesForms Data Controls :: MS SQL 2005 And DataSet - Computed Column
Feb 16, 2010I have a datatable in MS SQL that has FirstName and LastName. In MS SQL I created a computed field called FullName that was ((rtrim([LastName])+', ')+rtrim([FirstName])) I created a DataSet and a Business Logic Layer. In my typed DataSet I saw FullName in the listing when I created it. I am able to use FullName in my webpage. I use it to populate a dropdownlist. However, now when I make changes to the Customer Table I am getting this error message (seen below)
Question: Should I have created the field FullName in my MS SQL Table or should I have left it alone and somehow just added a column to the DataSet and placed an expression in the FullName column? The column "FullName" cannot be modified because it is either a computed column or is the result of a UNION operator. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Data.SqlClient.SqlException: The column "FullName" cannot be modified because it is either a computed column or is the result of a UNION operator. Source Error:
[Code]....
Source File: c:Users ottfarmsAppDataLocalTempTemporary ASP.NET Filesinternalauburnriverside98ea0e1f2a7f0720App_Code.lbdcba1v.2.cs Line: 1240 Stack Trace:
[Code]....
Forms Data Controls :: How To Change The Column Header From A DataSet
Feb 21, 2011The following query returns me the column name from the table in the database, and stores the column name in the grid. How can I change the column name in the grid using following code, if its possible?
DataSet p_dsInformixDataDs = new DataSet();
string cmd = "SELECT * FROM CUSTOMERS";
try
{
using (IfxDataAdapter da = new IfxDataAdapter(cmd, m_InformixDBConn))
{
da.Fill(p_dsInformixDataDs);
}
}
DataView myDataView = new DataView(m_dsInformixDataDs.Tables[0]);
if (myDataView .Count > 0)
{
GridView1.DataSource = m_dsInformixDataDs;
GridView1.DataBind();
}
DataSource Controls :: Convert The Dataset Column Names To Upper Case?
Jun 30, 2010how to convert the dataset columnnames to UPPER case letters. I have a code like :
[Code]....
But returned dataset result is not showing the uppercase column names.
DataSource Controls :: Dataset Sorted By Temporary Column Created By Stored Procedure?
Mar 27, 2010I have a stored procedure in my database that sorts a dataset by distance from the specific address input by the user. The distance is created among each individual users query and the sorting of distance occurs within my stored procedure, the distance is not returned in the output. Is there a way I can create a temporary column that returns the distance so that I can give the user an option to sort by distance?
View 9 RepliesForms Data Controls :: Dynamically Binding Dataset Table Values To Datagrid's Header Column?
Jun 29, 2010I want to dynamically bind dataset values into datagrid's header datafield.
Is it possible? To be more clear, when you click on datagrid's (Collection) from properties window, you get selected columns created from Bound column. So in those columns I want to dynamically display dataset's table values in those columns.
i.e like ds.Tables[0].Rows[0][0].
Is it possible to do it in Datagrid ItemDataBound function like,
e.Item.Cells[1].Text = ds.Tables[0].Rows[0][0]
or something like this? I know the above code is wrong and wont work since I tried it out and while building it throwed error saying, Cannot implicitly convert type 'object' to 'string'.
Forms Data Controls :: Link Checkbox With Bit Column, So Bit Column In SQL Database Gets Updated?
Mar 6, 2011I'm currently working on a small project and therefore created a gridview, including one bit column which has been linked with a checkbox in both the itemtemplate as the edititemtemplate (autopostback = true).Databinding for these two checkboxes has been linked (two-way) to the bit column.Now I want to display the gridview to end-users. They should be able to just click on the checkbox so they value in the database column gets changed as well (as I want to run update queries behind it), but not passing via the command column 'EDIT'.=> problem I'm having now is that the bit column in the database doesn't get updated.
View 3 RepliesDataSource Controls :: Accessing Specific Column In Database With Column ID With Table Adaptor
Jan 6, 2010I'm currectly tryin to access a specific value in my database in a specific column. I'm tryin to use the primary key of the table to access the actual value in the row of that ID.
The current code:
[Code]....
Just iterates through the table and looking for any row with the boolean 'checkin' value is True, then it takes the 'id' value of that row and stores it into an array. Is there a way that I can access a another entry, and only that entry, in the table with the 'id' stored in the array?
Like if my data base contained and int, primarykey, `id` value, a boolean, `checkedin` value, and a `time` value, is there a way to access, lets say, the row with `id` equalling 3 and and the checkIn value from that row?
Forms Data Controls :: >>>Display Gridview Column Heading When MouseOver On Particular Column?
Oct 12, 2010want to display gridview column heading when mouse over to the particular column in the gridview.
View 9 RepliesForms Data Controls :: Column Chart Has Inconsistent Column Segment Widths?
Jan 3, 2011[Code]....
Stacked-column chart has inconsistent column segment widths
Data Controls :: Identity Column In Table (User Activation) Can Only Be Specified When A Column List Is Used
Jan 24, 2016How to handle this error
"An explicit value for the identity column in table 'UserActivation' can only be specified when a column list is used and IDENTITY_INSERT is ON."
SQL Server :: Update Column Into Identity Column By Removing Null Values?
Aug 10, 2010I have a table converted from Access and the identity keys were lost. Now I need to make the id column the identity column, but it already has a lot of null values, how do I auto generate integer values for the null rows? The row ids are incremented, so if there is a way to auto increment the ids
View 7 RepliesThe Column Is Dragable Means The Order Of The Column Can Be Changed By Drag And Drop?
May 5, 2010i am making a website and i get a requirement that in GridView or ListView whatever control you used but the column is dragable means the order of the column can be change by drag and drop.Along with that i want to give option to the client that add more column if he check mark some column then that column should be added client side.So i am looking for some dll in ASP.NEt or Jquery for <table> Operation or javascript anything help me out
View 1 RepliesThree Columns Layout, Want Middle Column To Stretch Wider When Column 1 And 3 Are Empty?
Apr 11, 2010I have a 3 column layout using table-less design.
[code]....
The CSS:
#left {width: 200px;float:left;display:inline;}
#content {width: 600px;float:left;display:inline;padding: 0 10px;}
#right {width: 160px;float:left;display:inline;}
I am using a web application, and I can't change the layout. By can't change, I mean the div's with left/content/right cannot be removed.
On some pages, both the left and right columns are completely empty. And I want the #content div to expand more than the 600px.
is this possible, without altering the HTML?
