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datacolumn

Wednesday, 01 February 2012 01:22
the-column-new-col-datacolumn Following code make accountnumber column as readonly that does not allows for changes as soon as a row has been added to the table. `DataColumn col= new DataColumn(); col.ColumnName = "AccountNumber"; col.Readonly= true; // Add the column to the datatable mydatatable.Columns.Add(col);` Read more: http://feeds.dzone.com/~r/dzone/snippets/~3/QsQhBloZ4KM/14605

Sets the maximum length of a text column in datatable.

Wednesday, 01 February 2012 01:20
the-datatable-column-datacolumn-colmaxlength Sets the maximum length of a text column in datatable. `DataColumn col= new DataColumn(); col.ColumnName = "StudentId"; col.MaxLength = 255; // Add the column to the datatable mydatatable.Columns.Add(col);` Read more: http://feeds.dzone.com/~r/dzone/snippets/~3/uIhVU793dkY/14603

Change/Set the name of the column in the DataColumnCollection.

Wednesday, 01 February 2012 01:17
the-column-datacolumn-false-colautoincrement Change/Set the name of the column in the DataColumnCollection. `DataColumn col= new DataColumn(); col.ColumnName = "SupplierID"; col.AutoIncrement = false; // Add the column to the datatable mydatatable.Columns.Add(col);` Read more: http://feeds.dzone.com/~r/dzone/snippets/~3/XN-bp3kxZwY/14601

Create a datacolumn which automatically increments the value of the column for new rows added to the table

Tuesday, 31 January 2012 09:57

datatable-the-column-datacolumn-add

following code will add a datacolumn which automatically increments the value of the column for new rows added to the table



 DataColumn newcolumn=new DataColumn("studentID", System.Type.GetType("System.Int32"));

    newcolumn.AutoIncrement = true;

    newcolumn.AutoIncrementSeed = 1;

    newcolumn.AutoIncrementStep = 1;



//// Add column to datatable.

 DataTable mytable=new DataTable();

 mytable.Columns.Add(column);

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datacolumn

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