//删除选中的要素
private void button4_Click(object sender, EventArgs e)
{
row_index = dataGridView1.CurrentRow.Index;
if (((MessageBox.Show("确定要删除吗", "警告", MessageBoxButtons.YesNo)) == DialogResult.Yes))
{
ILayer pLayer = currentLayer;
IFeatureLayer pFeatureLayer = pLayer as IFeatureLayer;
ITable pTable = pFeatureLayer as ITable;
IRow pRow = pTable.GetRow(row_index);
pRow.Delete();
TableShow();
MessageBox.Show("删除成功！", "提示", MessageBoxButtons.OK);
_MapControl.ActiveView.Refresh();
RefreshTable refresh = new RefreshTable();
refresh.Refresh(dataGridView1, pFeatureLayer);
}
}
private void btnOK_Click(object sender, EventArgs e)
{
string strFieldName = txtFieldName.Text;
string strFieldNameAlias = txtFieldAliasName.Text;
string strFieldType = cmbFieldType.Text;
try
{
IFeatureLayer editAttributeLayer = _FeatureLayer;
//获取FeatureLayer
IFeatureLayer pFeatureLayer = editAttributeLayer;
//从FeatureLayer获取工作空间
IDataset pDataSet = pFeatureLayer.FeatureClass as IDataset;
IWorkspace pWorkSpace = pDataSet.Workspace;
//设置字段属性
IField pNewField = new FieldClass();
IClass pClass = pFeatureLayer as IClass;
IFieldEdit pFieldEdit = pNewField as IFieldEdit;
pFieldEdit.AliasName_2 = strFieldNameAlias;
pFieldEdit.Name_2 = strFieldName;
switch (strFieldType)
{
case "长整型":
{
pFieldEdit.Type_2 = esriFieldType.esriFieldTypeInteger;
pFieldEdit.Precision_2 = int.Parse(txtPrecision.Text);
break;
}
case "短整型":
{
pFieldEdit.Type_2 = esriFieldType.esriFieldTypeSmallInteger;
pFieldEdit.Precision_2 = int.Parse(txtPrecision.Text);
break;
}
case "浮点型":
{
pFieldEdit.Type_2 = esriFieldType.esriFieldTypeSingle;
pFieldEdit.Precision_2 = int.Parse(txtPrecision.Text);
pFieldEdit.Scale_2 = int.Parse(txtScale.Text);
break;
}
case "双精度":
{
pFieldEdit.Type_2 = esriFieldType.esriFieldTypeDouble;
pFieldEdit.Precision_2 = int.Parse(txtPrecision.Text);
pFieldEdit.Scale_2 = int.Parse(txtScale.Text);
break;
}
case "文本型":
{
pFieldEdit.Type_2 = esriFieldType.esriFieldTypeString;
pFieldEdit.Length_2 = int.Parse(txtPrecision.Text);
break;
}
default: //日期型0
{
pFieldEdit.Type_2 = esriFieldType.esriFieldTypeDate;
break;
}
}
//添加字段
try
{
int theField = pFeatureLayer.FeatureClass.Fields.FindField(strFieldName);
if (theField == -1)
{
pClass.AddField(pFieldEdit);
//pFeatureLayer.FeatureClass.AddField(pFieldEdit);
MessageBox.Show("字段添加成功！");
}
else
{
MessageBox.Show("字段已经存在！");
}
}
catch (Exception ex)
{
MessageBox.Show("Field " + pFieldEdit.Name + " was not added due to an error (" + ex.Message + " )");
}
}
catch (System.Exception ex)
{
MessageBox.Show(ex.Message);
}
this.Close();
_dgv.Update();
RefreshTable refresh = new RefreshTable();
refresh.Refresh(_dgv, _FeatureLayer);
}