datagrid控件的问题？

[zxd35]

在datagrid控件中显示列标题，下面显示空白的网格，某些列可以为其他控件，例如combobox控件，在这些空白的网格中可以输入一些内容，可以在某一行下面插入一行，也可以删除一行，输入完成后，把这些网格中的内容写入到文件中去，datagrid控件不和任何数据库相连接，这个问题如何解决？？万分感谢！！！

[cnhgj]

如果不和数据库连接的话，那么用xml，然后用DataSet绑定！要保存的时候用
StreamWriter myStreamWriter = new StreamWriter(xmlFilename);
DataSet1.WriteXml(myStreamWriter);

[zxd35]

xml如何使用？能给讲解一下吗？

[雪狼1234567]

combobox添加代码：
// Step 1. Derive a custom column style from DataGridTextBoxColumn

// a) add a ComboBox member

// b) track when the combobox has focus in Enter and Leave events

// c) override Edit to allow the ComboBox to replace the TextBox

// d) override Commit to save the changed data





// Step 2 - Use the combo column style

// Add 1 col with combo style

DataGridComboBoxColumn ComboTextCol = new DataGridComboBoxColumn();

ComboTextCol.MappingName = "custCity";

ComboTextCol.HeaderText = "Customer Address";

ComboTextCol.Width = 100;

ts1.GridColumnStyles.Add(ComboTextCol);



// Step 3 - Additional setup for Combo style

// a) make the row height a little larger to handle minimum combo height

ts1.PreferredRowHeight = ComboTextCol.ColumnComboBox.Height + 3;

// b) Populate the combobox somehow. It is a normal combobox, so whatever...

ComboTextCol.ColumnComboBox.Items.Clear();

ComboTextCol.ColumnComboBox.Items.Add("Chicago");

ComboTextCol.ColumnComboBox.Items.Add("Corvallis");

ComboTextCol.ColumnComboBox.Items.Add("Denver");

ComboTextCol.ColumnComboBox.Items.Add("Great Falls");

ComboTextCol.ColumnComboBox.Items.Add("Kansas City");

ComboTextCol.ColumnComboBox.Items.Add("Los Angeles");

ComboTextCol.ColumnComboBox.Items.Add("Raleigh");

ComboTextCol.ColumnComboBox.Items.Add("Washington");



// c) set the dropdown style of the combo...

ComboTextCol.ColumnComboBox.DropDownStyle = ComboBoxStyle.DropDownList;