private void BtnUpdate_Click(object sender, EventArgs e)
{
frmProgressBar2 pb2 = null;
try
{
this.BtnUpdate.Enabled = false;
this.Cursor = Cursors.WaitCursor;
//
string txtPath = this.textBox1.Text.Trim();
if (txtPath == "" || System.IO.File.Exists(txtPath) == false)
{
MessageBox.Show("请先选择YSDM对照txt文件", "提示");
this.BtnUpdate.Enabled = true;
this.Cursor = Cursors.Default;
return;
}
//
if (MessageBox.Show("请确认是否要对选中项进行批量更新YSDM字段的值操作?", "提示", MessageBoxButtons.OKCancel) == System.Windows.Forms.DialogResult.Cancel)
{
this.BtnUpdate.Enabled = true;
this.Cursor = Cursors.Default;
return;
}
//--------------------------------------
List <ItemClass> ItemList = new List <ItemClass>();
StreamReader sr = new StreamReader(txtPath, Encoding.Default);
while (sr.EndOfStream == false)
{
string line = sr.ReadLine();
string[] lineArray = line.Split(new char[] { ',' });
if (lineArray != null && lineArray.Length >= 3)
{
ItemClass item = new ItemClass();
item.Value = lineArray[0].Trim(); //YSDM
item.Caption = lineArray[1].Trim(); //YSDMName
item.Tag = lineArray[2].Trim(); //LayerName
//
ItemList.Add(item);
}
}
if (sr != null)
{
sr.Close();
sr.Dispose();
sr = null;
}
//--------------------------------------
//获取选中的要素类
List <IFeatureClass> fcList = new List <IFeatureClass>();
for (int i = 0; i < this.checkedListBox1.Items.Count; i++)
{
if (this.checkedListBox1.GetItemChecked(i) == true)
{ //选中要素类
CommonComboBoxItem cbitem = this.checkedListBox1.Items[i] as CommonComboBoxItem;
fcList.Add(cbitem.Tag as IFeatureClass);
}
}
if (fcList != null && fcList.Count > 0)
{
pb2 = new frmProgressBar2();
pb2.Text = "批量更新YSDM字段进度...";
pb2.progressBar1.Maximum = fcList.Count + 1;
pb2.progressBar1.Value = 0;
pb2.Caption1.Text = "正在更新...";
pb2.Show(this);
Application.DoEvents();
//
ZHFeaturePoint zhfeat = null;
int featIndex = 0;
int featCount = 0;
//
string YSDM = "";
for (int i = 0; i < fcList.Count; i++)
{
featIndex = 0;
IFeatureClass fc = fcList[i];
pb2.Caption1.Text = "正在更新图层:" + fc.AliasName + "...";
pb2.progressBar1.Value = i;
Application.DoEvents();
//
featCount = fc.FeatureCount(null);
pb2.progressBar2.Value = 0;
pb2.progressBar2.Maximum = featCount + 1;
pb2.Caption2.Text = "正在更新要素...";
Application.DoEvents();
//获取图层对应的要素代码值
string fcName = fc.AliasName;
if (fc is IDataset)
{
fcName = (fc as IDataset).Name;
}
foreach (ItemClass item in ItemList)
{
string txtLayerName = item.Tag.ToString();
//-------------------------------
if (cb_IsLayerLastPreStr.Checked == true)
{ //是后缀字符串
txtLayerName = txtLayerName + this.txt_LayerPreStr.Text.Trim();
}
else
{ //是前缀字符串
txtLayerName = this.txt_LayerPreStr.Text.Trim() + txtLayerName;
}
//-------------------------------
if (fcName.ToUpper() == txtLayerName.ToUpper())
{
YSDM = item.Value.ToString();
break;
}
}
//
IFeatureCursor fcur = fc.Update(null, false);
IFeature feat = fcur.NextFeature();
while (feat != null)
{
featIndex += 1;
if (featIndex % 200 == 0)
{
pb2.Caption2.Text = "正在更新图层:" + fc.AliasName + "(当前:" + featIndex.ToString() + "/" + featCount.ToString() + ")";
pb2.progressBar2.Value = featIndex;
Application.DoEvents();
fcur.Flush();
}
zhfeat = new ZHFeaturePoint(feat);
zhfeat.setFieldValue("YSDM", YSDM);
fcur.UpdateFeature(feat);
//
feat = fcur.NextFeature();
}
fcur.Flush();
if (fcur != null)
{
TokayWorkspace.ComRelease(fcur);
fcur = null;
}
}
if (pb2 != null)
{
pb2.Close();
pb2.Dispose();
pb2 = null;
}
MessageBox.Show("更新YSDM完毕!", "提示");
}
}
catch (Exception ee)
{
Log.WriteLine(ee);
MessageBox.Show(ee.Message, "提示");
}
finally
{
this.BtnUpdate.Enabled = true;
this.Cursor = Cursors.Default;
if (pb2 != null)
{
pb2.Close();
pb2.Dispose();
pb2 = null;
}
}
}
private void btnUpdate_Click(object sender, EventArgs e)
{
ProgressDialog pd = null;
try
{
ItemClass item = this.comboBox1.SelectedItem as ItemClass;
if (item == null)
{
MessageBox.Show("请先选择要更新的图层", "提示");
return;
}
ItemClass fd_item = this.comboBox2.SelectedItem as ItemClass;
if (fd_item == null)
{
MessageBox.Show("请先选择要更新的字段", "提示");
return;
}
ItemClass fd_from = this.comboBox3.SelectedItem as ItemClass;
if (fd_from == null)
{
MessageBox.Show("请先选择值来源的字段", "提示");
return;
}
int index_from = CommonClass.TInt(this.fd_indexFrom.Value);
int index_to = CommonClass.TInt(this.fd_indexTo.Value);
if (index_from < 0)
{
MessageBox.Show("取子字符串只能从大于等于0开始！", "提示");
return;
}
//
ILayer layer = item.Value as ILayer;
IFeatureLayer featLayer = layer as IFeatureLayer;
IFeatureClass fc = featLayer.FeatureClass;
//
string fdName = fd_item.Caption;
string fdfromName = fd_from.Caption;
//
int fCount = fc.FeatureCount(null);
if (fCount > 0)
{
pd = new ProgressDialog();
pd.Text = "进度";
pd.Message = "计算扣除地类系数中......";
pd.Minimum = 0;
pd.Maximum = fCount;
pd.Show(this);
//
Application.DoEvents();
//
IFeatureCursor pcursor = fc.Update(null, false);
IFeature pf = pcursor.NextFeature();
int index = fc.FindField(fdfromName);
int indexUpdate = fc.FindField(fdName);
//
int n = 0;
while (pf != null)
{
n = n + 1;
if (n % 200 == 0)
{
pd.Value = n;
pd.Message = "取子字符串中......" + pd.Value.ToString() + "/" + pd.Maximum.ToString();
Application.DoEvents();
pcursor.Flush();
}
object v = pf.get_Value(index);
if (v != null)
{
string value_from = v.ToString();
string result_v = value_from;
if (index_to < value_from.Length)
{
result_v = value_from.Substring(index_from, index_to);
}
else
{
result_v = value_from.Substring(index_from);
}
//
pf.set_Value(indexUpdate, result_v);
pcursor.UpdateFeature(pf);
}
pf = pcursor.NextFeature();
}
pcursor.Flush();
if (pcursor != null)
{
TokayWorkspace.ComRelease(pcursor);
pcursor = null;
}
if (pd != null)
{
pd.Dispose();
pd = null;
}
MessageBox.Show("更新完毕！", "提示");
}
}
catch (Exception ee)
{
MessageBox.Show(ee.StackTrace, "提示");
}
finally
{
if (pd != null)
{
pd.Dispose();
pd = null;
}
}
}