NDBGJK5.0/Kingo.Plugins/KGIS.Plugin.LayerProperty/View/FormAddValue.cs

using DevExpress.XtraEditors;
using ESRI.ArcGIS.Carto;
using ESRI.ArcGIS.Geodatabase;
using KGIS.Framework.Utils.Helper;
using System;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace KGIS.Plugin.LayerProperty.View
{
    public partial class FormAddValue : XtraForm
    {
        public string mFieldValue;
        public ITable mTable;
        public string mFieldName;
        public IFeatureLayer2 mFeatrueLayer;
        public FormAddValue()
        {
            InitializeComponent();
        }
        private void btnOk_Click(object sender, System.EventArgs e)
        {
            if (this.txtValue.Text.Trim() == "")
            {
                MessageHelper.ShowTips("请输入数值！");
                return;
            }
            this.mFieldValue = this.txtValue.Text.Trim();
            base.DialogResult = DialogResult.OK;
            base.Close();
        }
        private void btnCancel_Click(object sender, System.EventArgs e)
        {
            base.DialogResult = DialogResult.Cancel;
            base.Close();
        }
        private void btnShowAll_Click(object sender, System.EventArgs e)
        {
            this.listValue.Items.Clear();
            ArrayList arrayList = this.AddAllFieldValue(this.mTable, this.mFieldName);
            if (arrayList == null)
            {
                MessageHelper.ShowTips("读取图层字段属性值出错");
                return;
            }
            this.listValue.Items.Clear();
            for (int i = 0; i < arrayList.Count; i++)
            {
                this.listValue.Items.Add(arrayList[i]);
            }
        }
        private ArrayList AddAllFieldValue(ITable vTable, string vFieldName)
        {
            long num = 0L;
            ArrayList result;
            try
            {
                IDataset dataset = (IDataset)vTable;
                IFeatureWorkspace featureWorkspace = (IFeatureWorkspace)dataset.Workspace;
                IQueryDef queryDef = featureWorkspace.CreateQueryDef();
                queryDef.Tables = this.GetLayerPhysicalName(this.mFeatrueLayer);
                queryDef.SubFields = "DISTINCT (" + vFieldName + ")";
                ArrayList arrayList = new ArrayList();
                ICursor cursor = queryDef.Evaluate();
                for (IRow row = cursor.NextRow(); row != null; row = cursor.NextRow())
                {
                    string text = row.get_Value(0).ToString().Trim();
                    if (!text.Equals(""))
                    {
                        arrayList.Add(text);
                    }
                    num += 1L;
                    if (num == 1000L && MessageHelper.ShowYesNoAndTips("读取到的值已经大于1000个,可能需要花费很长时间,是否继续?") == DialogResult.No)
                    {
                        break;
                    }
                }
                result = arrayList;
            }
            catch (Exception ex)
            {
                //RdbUtil.AddException(ex);
                result = null;
            }
            return result;
        }
        private string GetLayerPhysicalName(IFeatureLayer2 featLyr)
        {
            IFeatureClass featureClass = featLyr.FeatureClass;
            IDataset dataset = (IDataset)featureClass;
            return dataset.Name;
        }
        private void listValue_Click(object sender, System.EventArgs e)
        {
            if (this.listValue.ItemCount == 0)
            {
                return;
            }
            if (this.listValue.SelectedIndex < 0)
            {
                return;
            }
            this.txtValue.Text = this.listValue.SelectedItem.ToString();
        }
        public void SetValues(int vValueNum)
        {
            try
            {
                this.txtValue.Text = "";
                string text = this.listValue.Items[0].ToString();
                if (text != null)
                {
                    this.txtValue.Text = text;
                }
            }
            catch (Exception value)
            {
                Console.Write(value);
            }
        }
        private void btnAddNew_Click(object sender, System.EventArgs e)
        {
            if (!this.listValue.Items.Contains(this.txtValue.Text))
            {
                this.listValue.Items.Add(this.txtValue.Text);
            }
        }
        private void listValue_SelectedValueChanged(object sender, System.EventArgs e)
        {
            this.btnOk.Enabled = true;
        }
    }
}