/// <summary>
/// 将DataGridViewRow转换成需求的实体类
/// </summary>
/// <param name="dr">Datarow数据源</param>
public static T GetTByDataGridViewRow(DataGridViewRow dr)
{
T tase = new T();
if (dr == null)
{
return(tase);
}
PropertyInfo[] myFields = tase.GetType().GetProperties();
foreach (DataGridViewCell cell in dr.Cells)
{
string name = cell.OwningColumn.Name.ToUpper();
var felds = myFields.Where(p => p.Name.ToUpper() == name).LastOrDefault();
if (felds == null)
{
continue;
}
switch (felds.PropertyType.ToString())
{
case "System.String":
felds.SetValue(tase, SqlInput.ChangeNullToValueString(cell.Value, ""), null);
break;
case "System.Boolean":
felds.SetValue(tase, SqlInput.ChangeBoolToValue(cell.Value, true), null);
break;
case "System.Decimal":
felds.SetValue(tase, SqlInput.ChangeNullToDecimal(cell.Value, 0), null);
break;
case "System.Double":
felds.SetValue(tase, SqlInput.ChangeNullToDouble(cell.Value, 0), null);
break;
case "System.Int32":
felds.SetValue(tase, SqlInput.ChangeNullToInt(cell.Value, 0), null);
break;
case "System.DateTime":
felds.SetValue(tase, SqlInput.ChangeDateTimeToValue(cell.Value, DateTime.MinValue), null);
break;
case "System.Byte[]":
if (cell.Value != null && cell.Value != DBNull.Value)
{
felds.SetValue(tase, (byte[])cell.Value, null);
}
break;
default:
break;
}
}
return(tase);
}
/// <summary>
/// 复制一个泛型类的相同值到另一个实体类(杜绝NULL值)
/// </summary>
/// <param name="modelObj">需要赋值的实体类</param>
/// <param name="obj">要复制值的泛型类</param>
public static void CopyValueOtherModel(object modelObj, T obj)
{
if (modelObj == null || obj == null)
{
return;
}
PropertyInfo[] propertyT = typeof(T).GetProperties();
PropertyInfo[] propertyObj = modelObj.GetType().GetProperties();
foreach (PropertyInfo per in propertyT)
{
var property = propertyObj.LastOrDefault(p => p.Name == per.Name);
if (property != null)
{
object value = per.GetValue(obj, null);
//判断复制值的实体类的属性的具体类型
switch (property.PropertyType.ToString())
{
case "System.String": //字符串类型
property.SetValue(modelObj, SqlInput.ChangeNullToValueString(value, ""), null);
break;
case "System.Boolean": //BOOL类型
property.SetValue(modelObj, SqlInput.ChangeBoolToValue(value, true), null);
break;
case "System.Decimal": //单精度类型
property.SetValue(modelObj, SqlInput.ChangeNullToDecimal(value, 0), null);
break;
case "System.Double":
property.SetValue(modelObj, SqlInput.ChangeNullToDouble(value, 0), null);
break;
case "System.Int32": //整型
property.SetValue(modelObj, SqlInput.ChangeNullToInt(value, 0), null);
break;
case "System.DateTime":
property.SetValue(modelObj, SqlInput.ChangeDateTimeToValue(value, DateTime.Now), null);
break;
case "System.Byte[]":
if (value != null && value != DBNull.Value)
{
property.SetValue(modelObj, (byte[])value, null);
}
break;
default:
break;
}
}
}
}
public static string GetUpdateSQL(T model)
{
T obj = new T();
PropertyInfo[] protyInColl = obj.GetType().GetProperties();
var types = typeof(T);
MethodInfo[] methods = types.GetMethods();
PropertyInfo[] Propertys = model.GetType().GetProperties();
string primaryKey = string.Empty;
string primaryKeyValue = string.Empty;
string Value = string.Empty;
int rowIndex = 0;
foreach (var property in Propertys)
{
rowIndex++;
if (rowIndex == 1)
{
primaryKey = property.Name;
try
{
primaryKeyValue = property.GetValue(model, null).ToString();
}
catch
{
throw new Exception("实体类第一个字段必须为主键，主键必须有值！");
}
continue;
}
if (Value == string.Empty)
{
try
{
Value = property.Name + string.Format("='{0}'", SqlInput.InputString(property.GetValue(model, null).ToString()));
}
catch
{
Value = property.Name + string.Format("=null");
}
}
else
{
try
{
Value += "," + property.Name + string.Format("='{0}'", SqlInput.InputString(property.GetValue(model, null).ToString()));
}
catch
{
Value += "," + property.Name + string.Format("=null");
}
}
}
return(string.Format("update {0} set {1} where {2}='{3}'", types.Name, Value, primaryKey, primaryKeyValue));
}
/// <summary>
/// 从GridView中获取数据生成对应实体类集合
/// </summary>
/// <param name="dgvr">GridView数据源</param>
/// <returns></returns>
public static List <T> GetListByGridView(DataGridView dgvr)
{
List <T> bindColl = new List <T>();
int maxCount = dgvr.Rows.Count;
if (dgvr.AllowUserToAddRows)
{
maxCount = maxCount - 1;
}
for (int i = 0; i < maxCount; i++)
{
T obj = new T();
PropertyInfo[] protyInColl = obj.GetType().GetProperties();
foreach (PropertyInfo per in protyInColl)
{
for (int j = 0; j < dgvr.Columns.Count; j++)
{
if (per.Name.ToLower() == dgvr.Columns[j].DataPropertyName.ToLower())
{
switch (per.PropertyType.ToString())
{
case "System.String":
per.SetValue(obj, SqlInput.ChangeNullToValueString(dgvr.Rows[i].Cells[j].Value, ""), null);
break;
case "System.Boolean":
per.SetValue(obj, SqlInput.ChangeBoolToValue(dgvr.Rows[i].Cells[j].Value, true), null);
break;
case "System.Decimal":
per.SetValue(obj, SqlInput.ChangeNullToDecimal(dgvr.Rows[i].Cells[j].Value, 0), null);
break;
case "System.Double":
per.SetValue(obj, SqlInput.ChangeNullToDouble(dgvr.Rows[i].Cells[j].Value, 0), null);
break;
case "System.Int32":
per.SetValue(obj, SqlInput.ChangeNullToInt(dgvr.Rows[i].Cells[j].Value, 0), null);
break;
case "System.DateTime":
per.SetValue(obj, SqlInput.ChangeDateTimeToValue(dgvr.Rows[i].Cells[j].Value, DateTime.MinValue), null);
break;
default:
break;
}
}
}
}
bindColl.Add(obj);
}
return(bindColl);
}
public static string GetInsertSQL(T model)
{
T obj = new T();
PropertyInfo[] protyInColl = obj.GetType().GetProperties();
var types = typeof(T);
MethodInfo[] methods = types.GetMethods();
PropertyInfo[] Propertys = model.GetType().GetProperties();
string Proper = string.Empty;
string Value = string.Empty;
int rowIndex = 0;
foreach (var property in Propertys)
{
rowIndex++;
if (Proper == string.Empty)
{
Proper = property.Name;
}
else
{
Proper += "," + property.Name;
}
if (rowIndex == 1)
{
Value = "getnewid('" + types.Name + "')";
}
else
{
try
{
Value += string.Format(",'{0}'", SqlInput.InputString(property.GetValue(model, null).ToString()));
}
catch
{
Value += string.Format(",null");
}
}
}
return(string.Format("insert into {0} ({1}) values ({2})", types.Name, Proper, Value));
}
/// <summary>
/// 由窗体的属性给实体类赋值,控件名=前缀+实体类属性
/// </summary>
/// <param name="app">窗体</param>
/// <param name="obj">实体类</param>
/// <param name="frontName">控件命名前缀</param>
public static void GetModelValueFromForm(Form app, T obj, string frontName)
{
PropertyInfo[] property = typeof(T).GetProperties();
FieldInfo[] fieldsInfor = app.GetType().GetFields(BindingFlags.Instance | BindingFlags.NonPublic);
foreach (PropertyInfo per in property)
{
FieldInfo filed = fieldsInfor.Where(p => p.Name == (frontName + per.Name)).LastOrDefault();
if (filed != null)
{
object value = GetControlValue(filed, app);
switch (per.PropertyType.ToString())
{
case "System.String":
per.SetValue(obj, SqlInput.ChangeNullToValueString(value, ""), null);
break;
case "System.Boolean":
per.SetValue(obj, SqlInput.ChangeBoolToValue(value, false), null);
break;
case "System.Decimal":
per.SetValue(obj, SqlInput.ChangeNullToDecimal(value, 0), null);
break;
case "System.Double":
per.SetValue(obj, SqlInput.ChangeNullToDouble(value, 0), null);
break;
case "System.Int32":
per.SetValue(obj, SqlInput.ChangeNullToInt(value, 0), null);
break;
case "System.DateTime":
per.SetValue(obj, SqlInput.ChangeDateTimeToValue(value, DateTime.Now), null);
break;
default:
break;
}
}
}
}
