tableadapter

问题 I do not understand but my stored procedure which I added to table adapter only returns null value. It is supposed to return a simple integer value. In the preview I had with data set desinger, I could clearly get the integer value that I wanted. But for some reason I cannot get the value from my codes. I followed the instruction of MSDN library: http://msdn.microsoft.com/en-us/library/37hwc7kt(VS.80).aspx My code for c# is: humansDataSetTableAdapters.ProfilesTableAdapter tableAdapter = new

问题 I have a WinForms / .Net 4.0 application in Visual Studio 2015 Update 3. When I try to add, or edit, a TableAdapter in any of my DataSets, I get this error: The wizard detected the following problems when configuring the TableAdapter: Details: Generated SELECT statement. [A]MySQL.Data.MySqlClient.MySqlConnection cannot be cast to [B]MySQL.Data.MySqlClient.MySqlConnection. Type A originates from 'MySQL.Data Version 6.9.8.0, Culture=neutral,PublicToken=c5687fc88969c44d' in context 'Default' at

问题 I'm a total newbie at the .net c# business and dove in this last week creating a form application to shuffle data around for SSIS configurations. The geniuses at MS decided not to apply a key to the table I'm working with - and generating a composite key of the two candidate fields will not work due to their combined length being too long. I don't particularly want to mess with the [ssis configurations] table schema by adding an autoincrement field. So I've been having alot of trouble getting

问题 I have already been searched solution and can't get the right solution yet. ObjDRow = DataDataSet.Client.Rows.Find(strClientNo) With ObjDRow .ClientName = txtClientName.Text.Trim .ClientAddr = txtAddr.Text.Trim If txtRegOffice.Text = "" Then .ClientRegOfficeAddr = txtAddr.Text.Trim Else .ClientRegOfficeAddr = txtRegOffice.Text.Trim End If .MailtoCorresAddr = RBtnCorresAddr.Checked .MailtoRegOffice = RBtnRegOffice.Checked .ClientHPhone = mskHandPhone.Text.Trim .ClientPager = mskPagerNo.Text

问题 I know this question has been asked to death but none of the solutions I have found thus far have worked... I use the following code to update a row in a table: LocalDBDataSetTableAdapters.tblProfileTableAdapter adapter = new LocalDBDataSetTableAdapters.tblProfileTableAdapter(); LocalDBDataSet.tblProfileDataTable table = new LocalDBDataSet.tblProfileDataTable(); //adapter.Fill(table); DataRow newRow = table.NewRow(); newRow[0] = txtOrgName.Text; newRow[1] = txtNPONum.Text; newRow[2] =

问题 I've added a DataGridView control to my TabControl to display data that is stored in a single table of a local application database called Cellar.sdf . When I add the data source to the DataGridView, I select the table I want to display data from and preview the data. It displays the content inside the database. When I build the project I get the following errors: The type name 'CellarDataSetTableAdapters' does not exist in the type 'Winecellar.Winecellar' The type name 'CellarDataSet' does

问题 My problem : Call to a Stored Procedure is timing out after 30 seconds. Seems the auto-generated table adapter doesn't provide an interface to change it. Question : How can I change the timeout value for my SP call? Environment : Visual Studio 2012, Code in VB.NET, database: SQL Server 2008 R2. I am using a dataset with the DataSet Designer for CRUD operations and also calling Store Procedures. The auto-generated table adapters are called from code. Research already done : I have found some

问题 I am using table adapter Query configuration wizard in Visual studio 2013 for getting data from my database. For some queries like this: SELECT * FROM ItemsTable ORDER BY date_of_creation desc, time_of_creation desc OFFSET (@PageNumber - 1) * @RowsPerPage ROWS FETCH NEXT @RowsPerPage ROWS ONLY it doesn't recognize the @pageNumber as a paremeter and it cannot generate function that has these arguments while it works fine for queries like: Select Top (@count) * from items_table Why does in

问题 I have a windows form app with a DataGridView populated by a TableAdapter . I'm using the Fill method to update the data for the UI in a looping Async sub like so. Private Async Sub updateUI() Dim sw As New Stopwatch While True Await Task.Delay(3000) sw.Restart() 'myTableAdapter.Fill(getDataWithMySQL()) 'myTableAdapter.Fill(myDataSet.myTable) myTableAdapter.Fill(myDataSet.myStoredProc) logger.Debug(sw.ElapsedMilliseconds) End While End Sub The getDataWithMySQL function is as follows: Private

问题 I am trying to write some data into a .MDF database that has only one table, and it's not updating after I execute this part of the code: DatabaseDataSet.MyTableRow newRow; newRow = databaseDataSet.MyTable.NewMyTableRow(); newRow.name = "x"; newRow.level = 100; newRow.health = 100; newRow.weapon = "club"; this.databaseDataSet.MyTable.Rows.Add(newRow); int result = MyTableTableAdapter.Update(databaseDataSet.MyTable); MessageBox.Show(result.ToString()); I am new to working with SQL databases in