Error when updating database from datatable

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2.50/5 (2 votes)

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Hi All,

I got this error when updating database from datatable.

{"Update unable to find TableMapping['Table'] or DataTable 'Table'."}

Here is my code (modified) :

C#

SqlCeDataAdapter da = new SqlCeDataAdapter("SELECT * FROM Name", con);
DataSet ds = new DataSet();
da.Fill(ds, "Name");
foreach (DataRow dr in ds.Tables["Name"].Rows)
{
    Console.WriteLine(dr["FirsName"] + "\t" + dr["NickName"] + "\t" + dr["Address"] + "\t" + dr["Gender"]);
    dr["Gender"]="Male";
}
da.Update(ds);
Console.Write("Press Enter to continue:");
Console.ReadLine();

Any Help??

Thanks

Posted 7-Sep-12 2:46am

Member 7913451

Updated 7-Sep-12 2:55am

Malli_S

v3

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Comments

db7uk 7-Sep-12 8:56am

your SELECT * FROM Name...... are you sure name is a table?

Anele Ngqandu 7-Sep-12 9:10am

Try to rebuild your code if you have the table "Name"

2 solutions

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Himanshu Yadav · Answer 1 · 2012-09-07T03:21:00

Use commandBuilder yr problem will be solved.

C#

SqlCeDataAdapter da = new SqlCeDataAdapter("SELECT * FROM Name", con);
DataSet ds = new DataSet();
da.Fill(ds, "Name");
foreach (DataRow dr in ds.Tables["Name"].Rows)
{
    Console.WriteLine(dr["FirsName"] + "\t" + dr["NickName"] + "\t" + dr["Address"] + "\t" + dr["Gender"]);
    dr["Gender"]="Male";
}
SqlCommandBuilder sqlcmdBuild = new SqlCommandBuilder(da);
da.Update(ds.Tables["Name"]);
Console.Write("Press Enter to continue:");
Console.ReadLine();

Hope this will work

fixthebugg · Answer 2 · 2012-09-07T03:22:00

Solution 2

Use

C#

da.Update(ds,"Name");

instead of

C#

da.Update(ds);

Posted 7-Sep-12 3:22am

fixthebugg

Updated 7-Sep-12 5:50am

v2