skip to content »

iukkat.ru

Updating dataset without dataadapter

updating dataset without dataadapter-10

However, you can create a Sql Command Builder or Ole Db Command Builder object to automatically generate SQL statements for single-table updates if you set the Select Command property of a . Then, any additional SQL statements that you do not set are generated by the Command Builder.This generation logic requires key column information to be present in the Data Set. After any data is loaded back into the Data Set, the On Row Updated event is raised, allowing the user to inspect the reconciled Data Set row and any output parameters returned by the command.

Problem: When a value in the grid is edited, how do I update the database?It should be noted that these statements are not performed as a batch process; each row is updated individually.An application can call the Get Changes method in situations where you must control the sequence of statement types (for example, INSERT before UPDATE).The user updates the excel sheet and I need to update the SQL values.) I am setting the dt.Row State to modified in an effort to invoke the Update. (Previous test show my SQL permissions and connection is good, I can modify the table.) connection To SQL = new Sql Connection(SQLConn String); connection To SQL.It does not appear to be nearly as easy as it would be if it were pointing to a database table, rather than a view.

method determines the type of change that has been performed on it (Insert, Update or Delete).

Parameters are mapped to the current row through the Source Column and Source Version properties of a. Source Column refers to a Data Table column that the Data Adapter references to obtain parameter values for the current row.

Source Column refers to the unmapped column name before any table mappings have been applied.

The default used is : Compare All Searchable Values.

Try using : Overwrite Changes, which will cause the WHERE clause generated in SQL statements to only compare the primary key values.

Open(); var cmd = new Sql Command("SELECT * FROM TAGS$",connection To SQL); var da = new Sql Data Adapter(cmd); var b = new Sql Command Builder(da); foreach (Data Row r in dt. Update(dt); It's difficult to tell what is being asked here.