对于一个DataView
你需要做的就是将CaseSensitive
parent 的属性设置DataTable
为 true。我只是使用以下代码快速对其进行了原型制作,并且效果很好:
public Form1()
{
InitializeComponent();
DataSet set1 = new DataSet();
// Some xml data to populate the DataSet with.
string testXml =
"<?xml version='1.0' encoding='UTF-8'?>" +
"<numbers>" +
"<number><name>one</name></number>" +
"<number><name>two</name></number>" +
"<number><name>Two</name></number>" +
"<number><name>three</name></number>" +
"</numbers>";
// Read the xml.
StringReader reader = new StringReader(testXml);
set1.ReadXml(reader);
// Get a DataView of the table contained in the dataset.
DataTableCollection tables = set1.Tables;
// Set the CaseSensetive property
tables[0].CaseSensitive = true;
DataView view1 = new DataView(tables[0]);
// Create a DataGridView control and add it to the form.
dataGridView1.AutoGenerateColumns = true;
// Create a BindingSource and set its DataSource property to
// the DataView.
BindingSource source1 = new BindingSource();
source1.DataSource = view1;
// Set the data source for the DataGridView.
dataGridView1.DataSource = source1;
// Set the Position property to the results of the Find method.
int itemFound = source1.Find("name", "Two");
source1.Position = itemFound;
}
正如文档所说,对于其他类型的 IBindingList,您需要一个实现区分大小写的 Find 的基础列表。为了完整起见,我在下面显示了执行此操作的代码:
public Form1()
{
InitializeComponent();
// This uses my CaseSensitiveBindingList which I have code for later
BindingList<DGVItems> source = new CaseSensitiveBindingList<DGVItems>()
{
new DGVItems { Number = "one" },
new DGVItems{Number = "two"},
new DGVItems{Number = "Two"}
};
BindingSource bindingSource = new BindingSource();
bindingSource.DataSource = source;
dataGridView1.DataSource = bindingSource;
var index = bindingSource.Find("Number", "Two");
// Index is 2 (third item) as desired.
MessageBox.Show(number.ToString());
}
public class DGVItems
{
public string Number { get; set; }
}
CaseSensitiveBindingList 的代码是:
public class CaseInsensitiveBindingList<T> : BindingList<T>
{
protected override int FindCore(PropertyDescriptor prop, object key)
{
string stringKey = key as string;
bool keyIsString = stringKey != null;
for (int i = 0; i < Count; ++i)
{
if (keyIsString && prop.PropertyType.IsAssignableFrom(typeof(string)))
{
if (stringKey.Equals(prop.GetValue(Items[i]).ToString(), StringComparison.CurrentCulture))
return i;
}
else
{
if (key.Equals(prop.GetValue(Items[i])))
return i;
}
}
return -1;
}
}
该代码几乎可以肯定可以改进,但显示了一般概念。