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Posted by / 07-Jan-2020 22:54

Dataset updating row

Calling Data Set, Data Table, Data Row Accept Changes marks the respective rows as processed (Data Row State.

Command Text = "INSERT Categories (Category Name, Description) VALUES (@Category Name," & _ " @Description); SELECT Category ID, Category Name, Description, " & _ "FROM Categories WHERE (Category ID = @@IDENTITY)" Sql Insert Command1. Command Text = "INSERT Categories (Category Name, Description) VALUES (@Category Name," & _ " @Description); SELECT Category ID, Category Name, Description, " & _ "FROM Categories WHERE (Category ID = @@IDENTITY)" Sql Insert Command1.

First I look up a User and get their data displayed in a form in my Website, this works fine, then I try to change the data displayed in the form and hope that the Data Set gets changed, then I call the method Update DB() in my Web Service. Update(my Data Set, table Name); You can also refer this link for more details:

Well when I run my applications now I don't get any real error, but the data base is NOT being updated Please have a look at my code below and tell me what to do in order to be able to update my data base with a changed Data Set. Page { private Data Set my Data Set; private Data Table my Data Table; private EBBWS. Hi Wencui Qian Thank you for your willingness to help me I tried to put the line: my Sql Command Builder.

NVar Char, 1073741823, "Description")) Dim nwind DS As Data Set = New Data Set() nwind DA. Hope this helps Jay "Cor" Hi Jay B, I could not find that text. Sql Exception: String or binary data would be truncated.

Sceppa's book explains it more detail then the above statement.

Update(Data Row[] data Rows, Data Table Mapping table Mapping) at System. Hope this helps Jay Cor, Sorry wrong URL, I changed pages in the browser, but the url did not change, try this page (the page immediately after the one I sent before). Fill(nwind DS, "Categories") dim dr Row as datarow = nwind DS.tables("Categories"). Sceppa's book explains it more detail then the above statement. Fill(nwind DS, "Categories") Dim dt Table As Data Table Dim dr Row As Data Row dt Table = nwind DS. New Row() dr Row("Category Name") = "New Category Name" dr Row("Description") = "New Description" dt Table. I typed it here not in the IDE so there can be little errors but basicly it is OK \\ Sub Main() Dim nwind Conn As Sql Connection = New Sql Connection ("Data Source=COL-TP5170-LT1\VSdot NET; Integrated Security=SSPI; Initial Catalog=Northwind;") Dim nwind DA As Sql Data Adapter = New Sql Data Adapter ("SELECT Category ID, Category Name, Description FROM Categories", nwind Conn) Dim nwind DS As Data Set = New Data Set() nwind DA. Fill(nwind DS, "Categories") Dim dt Table As Data Table Dim dr Row As Data Row dt Table = nwind DS. New Row() dr Row("Category Name") = "New Category Name" dr Row("Description") = "New Description" dt Table. NVar Char, 1073741823, "Description")) Dim nwind DS As Data Set = New Data Set() nwind DA. Update(nwind DS, "Categories") In addition to the Cor's comments.

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The code behind in my cs file looks like this: public partial class Profile Info : System. EBBWeb Service my WS; string db First Name, db Last Name; string session User ID = "1"; protected void Page_Load(object sender, Event Args e) protected void save Button_Click(object sender, Event Args e) But it doesn't work I get this Error: "Data Table already belongs to this Data Set." I can understand the error, because after all what I am trying to do is to change data which already exists in the dataset. Get Update Command(); Into my DAL code, but I still get the same error: "Data Table already belongs to this Data Set." Obviously I am doing something wrong when I try to update the Data Set with the updated Data Table, my code looks like this: Hi, If your problem is with saving, why dont you loop through your datatable records and save each single row seperately. Accept Changes(); If you call this method before updating, all the row states will be updated.

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