/// <summary>
/// 添加新字段
/// </summary>
/// <param name="fieldName">字段名称</param>
/// <param name="fieldType">字段类型</param>
public void AddNewFiled(string fieldName, esriFieldType fieldType)
{
ITable iTable = AttributeTableClass.GetITableByLayer(newFieldLayer);
//先删除
DeleteFieldClass.DeleteField(iTable, fieldName);
//再添加
iTable.AddField(NewFieldClass.GetNewFieldEdit(fieldName, fieldType));
AddTableColumn(fieldName, fieldName);
}
public static void AddField(ITable table, string fieldName, esriFieldType fieldType, int width = -1, int precision = -1, bool nullable = true, object defaultValue = null, string aliasName = null)
{
if (table.FindField(fieldName) != -1)
{
string printName = GetPrintName(table);
throw new InvalidOperationException($"Field \"{fieldName}\" already exists in {printName}.");
}
IField field = CreateField(fieldName, fieldType, width, precision, nullable, defaultValue, aliasName);
table.AddField(field);
}
/// <summary>
/// 添加多个新字段
/// </summary>
/// <param name="fieldNames"></param>
/// <param name="fieldType">字段类型</param>
public void AddNewFields(List <string> fieldNames, esriFieldType fieldType)
{
ITable iTable = AttributeTableClass.GetITableByLayer(newFieldLayer);
foreach (string fieldName in fieldNames)
{
//先删除
DeleteFieldClass.DeleteField(iTable, fieldName);
//再添加
iTable.AddField(NewFieldClass.GetNewFieldEdit(fieldName, fieldType));
}
AddTableColumns(fieldNames);
}
/// <summary>
/// 向feature添加字段
/// </summary>
/// <param name="layer"></param>
/// <param name="fieldName"></param>
/// <param name="AliasName"></param>
/// <param name="length"></param>
/// <returns></returns>
static public bool AddField(IFeatureClass layer, string fieldName, string AliasName, int length)
{
try
{
ITable pTable = (ITable)layer;
IFieldEdit pFieldEdit = new FieldClass()
{
IFieldEdit_Type_2 = esriFieldType.esriFieldTypeString,
IFieldEdit_AliasName_2 = AliasName,
IFieldEdit2_Name_2 = fieldName,
IFieldEdit_Length_2 = 50,
IFieldEdit_IsNullable_2 = true
};
pTable.AddField(pFieldEdit);
Console.WriteLine("添加字段成功");
return(true);
}
catch (Exception ex)
{
return(false);
}
}
public static void addField(ITable pTable, string FieldName, ESRI.ArcGIS.Geodatabase.esriFieldType FieldType, int FieldLength, int FieldPrecision, int FieldScale = 0)
{
// Error Handling
const string functionName = "addField";
IField pField = new Field();
IFieldEdit pFieldEdit = pField as IFieldEdit;
try
{
if (pTable.FindField(FieldName) < 0)
{
pFieldEdit.Name_2 = FieldName;
pFieldEdit.Type_2 = FieldType;
pFieldEdit.Length_2 = FieldLength;
if (FieldType != ESRI.ArcGIS.Geodatabase.esriFieldType.esriFieldTypeString)
{
pFieldEdit.Precision_2 = FieldPrecision;
pFieldEdit.Scale_2 = FieldScale;
}
pField = pFieldEdit as IField;
pTable.AddField(pField);
}
}
catch (Exception e)
{
MessageBox.Show(functionName + " :: " + e.Message, "SF10", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
finally
{
pField = null;
pFieldEdit = null;
}
}
public static bool bAddFields(ITable pTable, IFields2 pNewFields)
{
// Error Handling
const string functionName = "bAddFields";
try
{
int i;
IField pField;
string sFieldName;
for (i = 0; i < pNewFields.FieldCount; i++)
{
pField = pNewFields.Field[i];
sFieldName = pField.Name;
IFieldEdit pFldEdit;
if (pTable.FindField(sFieldName) < 0 && pField.Type != esriFieldType.esriFieldTypeOID && pField.Type != esriFieldType.esriFieldTypeGUID)
{
pFldEdit = (IFieldEdit)pField;
pFldEdit.Editable_2 = true;
pTable.AddField(pField);
}
}
return true;
}
catch (Exception e)
{
MessageBox.Show(functionName + " :: " + e.Message, "SF10", MessageBoxButtons.OK, MessageBoxIcon.Error);
return false;
}
}
public string createField(ITable inFtr, string nm, esriFieldType FieldType,bool renameFldName=true)
{
string snm = getSafeFieldName(inFtr, nm);
bool fieldWasRenamed = false;
if(snm.StartsWith("_"))fieldWasRenamed=true;
bool checkSettings = true;
if(fieldWasRenamed&&!renameFldName)
{
checkSettings=false;
snm = nm;
}
if (checkSettings)
{
ISchemaLock schemaLock = (ISchemaLock)inFtr;
try
{
// A try block is necessary, as an exclusive lock might not be available.
schemaLock.ChangeSchemaLock(esriSchemaLock.esriExclusiveSchemaLock);
IField fld = new FieldClass();
IFieldEdit fldE = (IFieldEdit)fld;
fldE.AliasName_2 = nm;
fldE.Name_2 = snm;
fldE.Type_2 = FieldType;
if (FieldType == esriFieldType.esriFieldTypeSmallInteger || FieldType == esriFieldType.esriFieldTypeSingle || FieldType == esriFieldType.esriFieldTypeInteger || FieldType == esriFieldType.esriFieldTypeDouble)
{
fldE.DefaultValue_2 = 0;
}
inFtr.AddField(fldE);
}
catch (Exception exc)
{
// Handle appropriately for your application.
Console.WriteLine(exc.Message);
//MessageBox.Show(exc.Message);
}
finally
{
// Set the lock to shared, whether or not an error occurred.
schemaLock.ChangeSchemaLock(esriSchemaLock.esriSharedSchemaLock);
}
}
return snm;
}