How to customize your own DataGrid

How to customize your own DataGrid
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Author: Hu Xiaodong
The following example shows how to customize the DataGrid, including How to bind a DataTable to a DataGrid, and how to hide some columns in the DataGrid.

First, if you only set the DataSource property of the DataGrid to be a DataTable, then the TableStyle of the DataGrid will be Defaulttablestyle, and its Tablestyle.count property is zero. So, if you want your DataGrid to have a different table style, you have to add your own table style.

The following example sets the data source property of a DataGrid and then declares a new DataGridTableStyle and four datagridcolumnstyles. This is because there are six fields in _perioddata.tables [accountingperioddata.accountingperiod_table], but I want to show only four, and the first one must be read-only, Of course I want to change the header Text for each field, so I use this function to implement it. Note that we can't set HeaderText to a string constant, we should get it from the source file.

By the way, I declare four DataGridColumnStyle objects, but update them to DataGridTextBoxColumn, which means you can also update them to a datagidboolcolumn. Of course you should know why. :-)//Initialize DataGrid when the form is opened.
private void Initializedatagrid ()
{
Set the DataGrid ' s datasource to a DataTable
Dtgperiods.datasource = _perioddata.tables
[Accountingperioddata.accountingperiod_table];

Create a DataGridTableStyle and set its MappingName is accounting_table
DataGridTableStyle Mydtgtablestyle = new DataGridTableStyle ();
Mydtgtablestyle.mappingname = accountingperioddata.accountingperiod_table;

Create DataGridColumnStyles, set their properties
Add these datagridcollumnstyles into
The DataGridTableStyle defined above one by one
DataGridColumnStyle Periodcodestyle = new DataGridTextBoxColumn ();
Periodcodestyle.mappingname = Accountingperioddata.period_field;
Periodcodestyle.headertext = "The time of the Year";
Periodcodestyle.readonly = true;
MYDTGTABLESTYLE.GRIDCOLUMNSTYLES.ADD (Periodcodestyle);

DataGridColumnStyle Startdatestyle = new DataGridTextBoxColumn ();
Startdatestyle.mappingname = Accountingperioddata.startdate_field;
Startdatestyle.headertext = "Opening date";
MYDTGTABLESTYLE.GRIDCOLUMNSTYLES.ADD (Startdatestyle);

DataGridColumnStyle Enddatestyle = new DataGridTextBoxColumn ();
Enddatestyle.mappingname = Accountingperioddata.enddate_field;
Enddatestyle.headertext = "Final Date";
MYDTGTABLESTYLE.GRIDCOLUMNSTYLES.ADD (Enddatestyle);

DataGridColumnStyle Openstyle = new DataGridTextBoxColumn ();
Openstyle.mappingname = Accountingperioddata.open_field;
Openstyle.headertext = "Do not open";
MYDTGTABLESTYLE.GRIDCOLUMNSTYLES.ADD (Openstyle);

Add the DataGridTableStyle into the DataGrid ' s datasource.
DTGPERIODS.TABLESTYLES.ADD (Mydtgtablestyle);
}