C how to change data in DataTable

Question

I v got some problem  I use DataTable to store my data in dataGridView  Data was inputed like this   dt   new DataTable    dt Columns Add  ID   typeof int    dt Columns Add  par   typeof string    dt Columns Add  max   typeof int    dt Columns Add  now   typeof int     dt Rows Add new object     id   i         j    strarr 0   strarr 1             etc etc  dataGridView1 DataSource   dt    now I want to do some changes  I use code   dt Rows 1  ItemArray 3     VALUE     When I debug  ItemArray represents the row I want to  so its okey  but still I can t do any changes  whats wrong   How to update DataTable     I m googling and nothing

User · Answer

Try the SetField method   table Rows i  SetField column  value   table Rows i  SetField columnIndex  value   table Rows i  SetField columnName  value    This should get the job done and is a bit  cleaner  than using Rows i  j

User · Answer

You should probably set the property dt Columns  columnName   ReadOnly   false  before

User · Answer

dt Rows 1  ItemArray gives you a copy of item arrays  When you modify it  you re not modifying the original   You can simply do this   dt Rows 1  3     Value     ItemArray property is used when you want to modify all row values   ex     dt Rows 1  ItemArray   newItemArray

[c#] C# how to change data in DataTable?

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