Dataset not updating database vb net

07-Feb-2020 23:04 by 6 Comments

Dataset not updating database vb net - Pornwebcam 48

However, that error points to a problem of trying to add a record that has a duplicated primary key or data integrity issues. Dim dt As New Data Table Dim ds As New Data Set ds. Fill(dt, "prms_patient") Dim new Row As Data Row = ds. Add(newrow) Dim cb As New Ole Db Command Builder(da) da. Now that being said, the only thing it's probably going to resolve at this point is easier to follow code. It appears that an attempt is being made thus the error. This way you validate the input and leave the routine if there is an error without trying to add the new row. Open() Dim da As New Ole Db Data Adapter da = New Ole Db Data Adapter("select * from prms_patient", con) da.

OK, let's break this down because as I said earlier, all this error handling is making your code hard to follow. Now that being said, the only thing it's probably going to resolve at this point is easier to follow code. The problem more than likely is that you are trying to enter a row with a duplicate primary key Suggestion: Do all your checks for errors and handle your error provider messages and then when everything is right,start your new row and record it. Continue with this until you have all fields ' Commit it to your Data Set ds. If and Only If all input validation passes do you allow your code to execute the example above. The problem more than likely is that you are trying to enter a row with a duplicate primary key Suggestion: Do all your checks for errors and handle your error provider messages and then when everything is right,start your new row and record it. Add(new Row) ' At this point you have just added a new row to your dataset so it's time to commit it to the database ' This code is the same Dim cb as New Ole Db. Update(ds, "My Table") Msg Box("Record Added") This should get you a new row in your database and you can check it by opening the table and verifying. Move to the top of this code and insert your checks for input validation. Set Error(tb Add, "Please enter your address.") Return Else con. Close() End If ' Codes for Gender If rb Female. Set Error(mtb Mobile, "Please Enter your Mobile Number.") Return Else con.

Forget about checking for errors or missing information as you will know what each field needs to perform a good insert.

Set Error(lbl Gender, "Please select your gender.") Return Else con.

Close() End If ' Codes for Civil Status If cb Stat.

Set Error(tb SN, "Empty Fields, Numbers and Special Characters are not Allowed.") Return Else con.

Set Error(tb SN, "Please select your Middle Initial.") Return Else con.

Change the data in the field or fields that contain duplicate data, remove the index, or redefine the index to permit duplicate entries and try again.

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