如何获取gridlookupedit的值

发布网友发布时间：2022-05-03 02:43

共1个回答

热心网友时间：2023-10-08 14:50

一.LookUpEdit控件简单使用：下面是使用到的基础数据

public class Proct
{
public int Id { get; set; }
public string Model { get; set; }
public string Name { get; set; }
}
public class Entility
{
private static string GetChar(int number)
{
string[] array = new string[] { "A","B","C","D","E","F","G","H","I"};
string result = array[number % 9];
return result;
}
private static string GetName(int number)
{
string[] array =
{
"Unitch数据采集器","MS扫描*","105SL","TSC","PH880","MS320便携式打印机","PA700","DSX800电脑","HP打印机"
};
string result = array[number % 9];
return result;
}

public static List<Proct> GetProctList()
{
List<Proct> list = new List<Proct>();
for (int i = 0; i < 200; i++)
{
Proct proct = new Proct()
{
Id=100+i,Model=GetChar(i)+i.ToString()+"DLJ",Name=GetName(i)+i.ToString()
};
list.Add(proct);
}
return list;
}
public static DataTable GetDataTable()
{
DataTable dt = new DataTable();
dt.Columns.Add("Id",typeof(System.Int32));
dt.Columns.Add("Model", typeof(System.String));
dt.Columns.Add("Name", typeof(System.String));
for (int i = 0; i < 200; i++)
{
DataRow dr = dt.NewRow();
dr["Id"] = 100 + i;
dr["Model"] = GetChar(i) + i.ToString() + "DLJ";
dr["Name"] = GetName(i) + i.ToString();
dt.Rows.Add(dr);
}
return dt;
}
}

先看一下效果：

数据绑定：

List<Proct> list = Entility.GetProctList();
lookUpEdit1.Properties.DataSource = list;

添加显示的列：找到属性列表---添加要绑定的列。如果没有添加列根据属性名称自动生成列

简单属性设置：

//双击显示下拉列表
lookUpEdit1.Properties.ShowDropDown = ShowDropDown.DoubleClick;
lookUpEdit1.Properties.ImmediatePopup = true;//显示下拉列表
lookUpEdit1.Properties.TextEditStyle = TextEditStyles.Standard;//允许输入
lookUpEdit1.Properties.DropDownRows = 12;//默认显示的行
lookUpEdit1.Properties.PopupWidth = 350;//设置宽带
lookUpEdit1.Properties.NullText = "";//清空默认值

二.GridLookUpEdit控件简单使用
效果：

数据绑定：

List<Proct> list = Entility.GetProctList();
gridLookUpEdit1.Properties.DataSource = list;

添加显示的数据列：并进行数据绑定设置列的宽度

GridLoolUpEdit 默认是根据 DisplayMember 绑定的字段进行模糊筛选。

设置根据多列筛选功能：

private void FilterLookup(object sender)
{

GridLookUpEdit edit = sender as GridLookUpEdit;
GridView gridView = edit.Properties.View as GridView;
FieldInfo fi = gridView.GetType().GetField("extraFilter", BindingFlags.NonPublic | BindingFlags.Instance);
BinaryOperator op1 = new BinaryOperator("Id", "%" + edit.AutoSearchText + "%", BinaryOperatorType.Like);
BinaryOperator op2 = new BinaryOperator("Model", "%" + edit.AutoSearchText + "%", BinaryOperatorType.Like);
BinaryOperator op3 = new BinaryOperator("Name", "%" + edit.AutoSearchText + "%", BinaryOperatorType.Like);
string filterCondition = new GroupOperator(GroupOperatorType.Or, new CriteriaOperator[] { op1, op2,op3 }).ToString();
fi.SetValue(gridView, filterCondition);

MethodInfo mi = gridView.GetType().GetMethod("ApplyColumnsFilterEx", BindingFlags.NonPublic | BindingFlags.Instance);
mi.Invoke(gridView, null);
}

private void gridLookUpEdit1_EditValueChanging(object sender, DevExpress.XtraEditors.Controls.ChangingEventArgs e)
{
BeginInvoke(new MethodInvoker(delegate()
{
FilterLookup(sender);

}));
}

对筛选的列显示行号

private void gridLookUpEdit1View_CustomDrawRowIndicator(object sender, RowIndicatorCustomDrawEventArgs e)
{
if (e.Info.IsRowIndicator && e.RowHandle >= 0)
{
e.Info.DisplayText = (e.RowHandle + 1).ToString();
}
}

一些简单的属性设置：

//双击显示下拉列表
gridLookUpEdit1.Properties.ShowDropDown = ShowDropDown.DoubleClick;
gridLookUpEdit1.Properties.ImmediatePopup = true;//显示下拉列表
gridLookUpEdit1.Properties.TextEditStyle = TextEditStyles.Standard;//允许输入
gridLookUpEdit1.Properties.NullText = "";//清空默认值

设置下拉列表宽度

如果有错误的地方，欢迎同行指正！！