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jackzhenguojackzhenguo
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‎View/MasterForm.Designer.cs‎

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‎View/MasterForm.cs‎

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using LeetcodeManager.Controller;
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using LeetcodeManager.Entity;
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using LeetcodeManager.Lib;
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Data;
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using System.Drawing;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using System.Windows.Forms;
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namespace LeetcodeManager.View
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{
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public partial class MasterForm : Form
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{
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private readonly ProblemInputController _problemController;
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private readonly TagInputController _tagController;
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public MasterForm()
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{
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InitializeComponent();
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_problemController = new ProblemInputController();
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_tagController = new TagInputController();
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}
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protected override void OnLoad(EventArgs e)
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{
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base.OnLoad(e);
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//binding to tree
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var tags = _tagController.GetAllTags();
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TreeNode root = treeViewTag.Nodes[0];
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if (tags == null) return;
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foreach (var tag in tags)
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{
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TreeNode node = new TreeNode(tag.Name) { Tag = tag };
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root.Nodes.Add(node);
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}
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treeViewTag.ExpandAll();
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}
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protected override void OnClosing(CancelEventArgs e)
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{
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base.OnClosing(e);
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//MyDb: dispose
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}
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private void newTagToolStripMenuItem_Click(object sender, EventArgs e)
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{
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var input = new TagInputForm();
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if (input.ShowDialog() != DialogResult.OK)
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return;
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var tag = new Tag() { Name = input.InputTag };
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var tagdb = _tagController.GetATagByName(input.InputTag);
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if (!_tagController.IsNew(tagdb))
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{
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SysHelper.ShowMessageWarning("Existed tag with this name, create failure!");
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return;
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}
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tagdb =_tagController.SaveTagToDb(tag);
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treeViewTag.Nodes[0].Nodes.Add(new TreeNode(input.InputTag) { Tag = tagdb });
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treeViewTag.ExpandAll();
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}
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private void updateTagToolStripMenuItem_Click(object sender, EventArgs e)
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{
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if (treeViewTag.SelectedNode.Name == "rootNode")
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{
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MessageBox.Show("Root name cannot be revised!");
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return;
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}
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var tagdel = treeViewTag.SelectedNode.Tag as Tag;
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if (tagdel == null) return;
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var rettag = _tagController.GetATagById(tagdel.TagId);
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if (rettag == null)
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{
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SysHelper.ShowMessageWarning("Unable to retrive from db!");
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return;
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}
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var input = new TagInputForm(tagdel.Name);
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if (input.ShowDialog() != DialogResult.OK)
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return;
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rettag.Name = input.InputTag;
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_tagController.UpdateTagName(rettag);
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treeViewTag.SelectedNode.Text = input.InputTag;
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treeViewTag.ExpandAll();
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}
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private void deleteTagToolStripMenuItem_Click(object sender, EventArgs e)
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{
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if (treeViewTag.SelectedNode.Name == "rootNode")
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{
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MessageBox.Show("Root of tree cannot be deleted!");
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return;
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}
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try
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{
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var tagdel = treeViewTag.SelectedNode.Tag as Tag;
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if (tagdel == null) return;
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var rettag = _tagController.GetATagById(tagdel.TagId);
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if (rettag == null)
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{
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SysHelper.ShowMessageWarning("Unable to retrive from db!");
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return;
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}
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_tagController.DeleteTag(rettag);
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treeViewTag.SelectedNode.Remove();
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SysHelper.ShowMessageOK("deletion success");
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}
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catch (Exception ex)
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{
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MessageBox.Show("deletion failure");
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}
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treeViewTag.ExpandAll();
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}
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private void treeViewTag_AfterSelect(object sender, TreeViewEventArgs e)
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{
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Tag tag = e.Node.Tag as Tag;
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if (tag == null)
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return;
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if (SysHelper.CollectionNullOrEmpty<Problem>(tag.Problems))
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{
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problemBindingSource.DataSource = tag.Problems;
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return;
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}
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problemBindingSource.DataSource = tag.Problems;
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}
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//save question
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private void problemBindingNavigatorSaveItem_Click(object sender, EventArgs e)
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{
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this.Validate();
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foreach (DataGridViewRow row in problemDataGridView.Rows)
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{
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Problem obj = row.DataBoundItem as Problem;
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if (obj == null) continue;
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_problemController.SaveProblem(obj);
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}
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_problemController.UpdateProblems(); //inlcude delete(this is the ability EF provides)
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problemDataGridView.Refresh();
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}
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private void toolStripButtonDelAll_Click(object sender, EventArgs e)
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{
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this.Validate();
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if (DialogResult.No == SysHelper.ShowMessageYesOrNo("Are you sure to delete all problems in this grid?"))
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return;
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problemBindingSource.DataSource = new List<Problem>();
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}
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private void deleteALLLocalDataToolStripMenuItem_Click(object sender, EventArgs e)
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{
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if (DialogResult.No == MessageBox.Show("Are you sure to delete all data in database?", "LeetCodeManager", MessageBoxButtons.YesNo))
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return;
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IList<Problem> deletes = new List<Problem>();
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foreach(DataGridViewRow row in problemDataGridView.Rows)
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{
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var problem = row.DataBoundItem as Problem;
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if(problem!=null && !_problemController.IsNew(problem))
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deletes.Add(problem);
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}
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_problemController.DeleteProblems(deletes);
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}
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private void bindingNavigatorAddNewItem_Click(object sender, EventArgs e)
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{
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ProblemInputForm problemInput = new ProblemInputForm();
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if (problemInput.ShowDialog() == DialogResult.Cancel)
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return;
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Problem newproblem = problemInput.InputProblem;
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int cnt = problemDataGridView.Rows.Count;
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DataGridViewRow fillrow = problemDataGridView.Rows[cnt - 2];
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fillrow.Cells[1].Value = newproblem.Title;
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fillrow.Cells[2].Value = newproblem.LtUrl;
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fillrow.Cells[3].Value = newproblem.CsdnAddress;
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fillrow.Cells[4].Value = newproblem.Content;
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fillrow.Cells[5].Value = newproblem.Tags;
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}
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private void toolStripButtonEdit_Click(object sender, EventArgs e)
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{
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var selectrows = problemDataGridView.SelectedRows;
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if(selectrows==null || selectrows.Count==0)
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{
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SysHelper.ShowMessageWarning("unselect any row, please select at least one row!");
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return;
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}
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foreach(DataGridViewRow row in selectrows)
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{
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var frm = new ProblemInputForm(row.DataBoundItem as Problem);
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if (frm.ShowDialog() == DialogResult.Cancel)
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continue;
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Problem newproblem = frm.InputProblem;
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row.Cells[1].Value = newproblem.Title;
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row.Cells[2].Value = newproblem.LtUrl;
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row.Cells[3].Value = newproblem.CsdnAddress;
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row.Cells[4].Value = newproblem.Content;
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row.Cells[5].Value = newproblem.Tags;
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}
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_problemController.UpdateProblems();
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}
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}
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}

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