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房租管理小软件（五）：控件的使用

1.TextEdit的操作，TextEdit一般设置　Property.Mask 可以控制输入的格式

decimal : 一般用　f2

2.gridlookupEdit,让数据直接绑定到控件上面，而且有搜索功能

 1 #region 费用代码
 2 this.gridLookUpEdit_FeeCode.Properties.DataSource = from t in dataContext.T1_SY_FeeCode
 3                                                            select new
 4                                                            {
 5                                                                t.AutoID,
 6                                                                t.NameCN,
 7                                                                PY = dataContext.fun_getPY(t.NameCN)
 8                                                            };
 9             this.gridLookUpEdit_FeeCode.Properties.DisplayMember = "NameCN";
10             this.gridLookUpEdit_FeeCode.Properties.ValueMember = "AutoID";
11             this.gridLookUpEdit_FeeCode.Properties.View.OptionsView.ShowColumnHeaders = false;
12             this.gridLookUpEdit_FeeCode.Properties.TextEditStyle = DevExpress.XtraEditors.Controls.TextEditStyles.Standard;
13             this.gridLookUpEdit_FeeCode.Properties.ImmediatePopup = true;
14             this.gridLookUpEdit_FeeCode.Properties.AllowNullInput =  DevExpress.Utils.DefaultBoolean.True;
15             
16             DevExpress.XtraGrid.Columns.GridColumn T1_SY_FeeCode_AutoID = new DevExpress.XtraGrid.Columns.GridColumn();
17             T1_SY_FeeCode_AutoID.Caption = "AutoID";
18             T1_SY_FeeCode_AutoID.FieldName = "AutoID";
19             T1_SY_FeeCode_AutoID.Name = "T1_SY_FeeCode_AutoID";
20             T1_SY_FeeCode_AutoID.Visible = true;
21             T1_SY_FeeCode_AutoID.VisibleIndex = 0;
22             T1_SY_FeeCode_AutoID.Width = 122;
23 
24             DevExpress.XtraGrid.Columns.GridColumn T1_SY_FeeCode_NameCN = new DevExpress.XtraGrid.Columns.GridColumn();
25             T1_SY_FeeCode_NameCN.Caption = "NameCN";
26             T1_SY_FeeCode_NameCN.FieldName = "NameCN";
27             T1_SY_FeeCode_NameCN.Name = "T1_SY_FeeCode_NameCN";
28             T1_SY_FeeCode_NameCN.Visible = true;
29             T1_SY_FeeCode_NameCN.VisibleIndex = 0;
30             T1_SY_FeeCode_NameCN.Width = 122;
31 
32 
33             DevExpress.XtraGrid.Columns.GridColumn T1_SY_FeeCode_PY = new DevExpress.XtraGrid.Columns.GridColumn();
34             T1_SY_FeeCode_PY .Caption = "PY";
35             T1_SY_FeeCode_PY .FieldName = "PY";
36             T1_SY_FeeCode_PY .Name = "T1_SY_FeeCode_PY";
37             T1_SY_FeeCode_PY .Visible = false;
38             T1_SY_FeeCode_PY .VisibleIndex = 0;
39             T1_SY_FeeCode_PY .Width = 122;
40 
41 
42 
43             this.gridLookUpEdit_FeeCode.Properties.View.Columns.Add(T1_SY_FeeCode_AutoID);
44             this.gridLookUpEdit_FeeCode.Properties.View.Columns.Add(T1_SY_FeeCode_PY);
45             this.gridLookUpEdit_FeeCode.Properties.View.Columns.Add(T1_SY_FeeCode_NameCN);
46             T1_SY_FeeCode_PY.Visible = false;
47 
48             this.gridLookUpEdit_FeeCode.EditValueChanging += new DevExpress.XtraEditors.Controls.ChangingEventHandler(delegate(object sender, DevExpress.XtraEditors.Controls.ChangingEventArgs e)
49             {
50                 this.BeginInvoke(new System.Windows.Forms.MethodInvoker(delegate
51                 {
52 
53                     GridLookUpEdit edit = sender as GridLookUpEdit;
54                     GridView gridView = edit.Properties.View as GridView;
55                     FieldInfo fi = gridView.GetType().GetField("extraFilter", BindingFlags.NonPublic | BindingFlags.Instance);
56                     CriteriaOperator[] ca = new CriteriaOperator[gridView.Columns.Count];
57 
58                     for (int i = 0; i < gridView.Columns.Count; i++)
59                     {
60                         BinaryOperator op1 = new BinaryOperator(gridView.Columns[i].FieldName, edit.Text + "%", BinaryOperatorType.Like);
61                         ca[i] = op1;
62                     }
63 
64                     string filterCondition = new GroupOperator(GroupOperatorType.Or, ca).ToString();
65                     fi.SetValue(gridView, filterCondition);
66                     MethodInfo mi = gridView.GetType().GetMethod("ApplyColumnsFilterEx", BindingFlags.NonPublic | BindingFlags.Instance);
67                     mi.Invoke(gridView, null);
68 
69                 }));
70             }
71                 );
72             this.gridLookUpEdit_FeeCode.KeyDown += new System.Windows.Forms.KeyEventHandler(delegate(object sender, KeyEventArgs e)
73             {
74                 GridLookUpEdit edit = sender as GridLookUpEdit;
75                 if (e.KeyData.ToString() == "Return" && edit.IsPopupOpen == false && edit.EditValue != "" && edit.EditValue != null)
76                 {
77                     SendKeys.Send("{Tab}");
78                 }
79             });
80             
81             this.gridLookUpEdit_FeeCode.Properties.ButtonClick += new DevExpress.XtraEditors.Controls.ButtonPressedEventHandler(delegate(object sender, DevExpress.XtraEditors.Controls.ButtonPressedEventArgs e)
82             {
83                 if (e.Button.Kind == DevExpress.XtraEditors.Controls.ButtonPredefines.Combo) { }
84 
85                 if (e.Button.Kind == DevExpress.XtraEditors.Controls.ButtonPredefines.Delete) { 
86                     (sender as GridLookUpEdit).Focus(); SendKeys.Send("^{DEL}"); }
87 
88             });
89             #endregion

View Code

3.在gridControl 中使用内置控件显示（RepositoryItemLookUpEdit）

 1  #region 人员
 2             DevExpress.XtraEditors.Repository.RepositoryItemLookUpEdit repositoryItemLookUpEdit_User = new DevExpress.XtraEditors.Repository.RepositoryItemLookUpEdit();
 3             this.colT2_JZ_CarryOverStock.ColumnEdit =  repositoryItemLookUpEdit_User;
 4             repositoryItemLookUpEdit_User.AutoHeight = false;
 5             repositoryItemLookUpEdit_User.Name = "repositoryItemLookUpEdit_User";
 6             repositoryItemLookUpEdit_User.Columns.Add(new DevExpress.XtraEditors.Controls.LookUpColumnInfo("UserID"));
 7             repositoryItemLookUpEdit_User.Columns.Add(new DevExpress.XtraEditors.Controls.LookUpColumnInfo("UserName"));
 8             repositoryItemLookUpEdit_User.DataSource = from t in dataContext.T1_QX_MySystemUser
 9                                                            select new
10                                                            {
11                                                                t.UserID,
12                                                                t.UserName
13                                                            };
14             repositoryItemLookUpEdit_User.DisplayMember = "UserName";
15             repositoryItemLookUpEdit_User.ValueMember = "UserID";
16             repositoryItemLookUpEdit_User.ShowHeader = false;
17             repositoryItemLookUpEdit_User.NullText = "";
18             #endregion

View Code

4.gridcontrol 中为0 则不显示：
this.gridColumn_Amount.DisplayFormat.FormatType = DevExpress.Utils.FormatType.Numeric;
this.gridColumn_Amount.DisplayFormat.FormatString = "{0:#.00;-#.00;''}";

5.gridcontol 中分行的状态进行控制颜色，选中状态等

 1 private void gridView1_CustomRowCellEdit(object sender, CustomRowCellEditEventArgs e)
 2         {
 3             
 4             try
 5             {
 6                 if (e.Column.FieldName != "Check") return;
 7                 
 8                 if (e.RowHandle > -1)
 9                 {
10                     Object os = this.dt_ZW.Rows[e.RowHandle]["Status"];
11                     if (os != null)
12                     {
13                         string s_Status = os.ToString();//状态
14                         if (s_Status == "已结" || s_Status == "冲抵") { e.RepositoryItem = repositoryItemCheckEdit2; }//不能选中
15                         else
16                         {
17                             e.RepositoryItem = repositoryItemCheckEdit1;
18                         }
19                     }
20                 }
21             }
22             catch (Exception ex) { }
23         }
24 
25         
26 
27         private void gridView1_RowCellStyle(object sender, RowCellStyleEventArgs e)
28         {
29             GridView view = sender as GridView;
30             Object os = view.GetRowCellDisplayText(e.RowHandle, this.gridColumn_Status);
31             if (os != null)
32             {
33                 string s_Status = os.ToString();//状态
34                 if (s_Status == "已结") { e.Appearance.ForeColor = SystemColors.GrayText; }
35                 if (s_Status == "冲抵") { e.Appearance.ForeColor = Color.Red; }
36             }
37 
38             Object FAmount = view.GetRowCellDisplayText(e.RowHandle, this.gridColumn_FAmount);
39             if (FAmount != null && FAmount.ToString() != "")
40             {
41 
42                 decimal s_FAmount = decimal.Parse(FAmount.ToString());//状态
43                 if (s_FAmount < 0 && e.Column.FieldName == "FAmount") { e.Appearance.ForeColor = Color.Red; }
44 
45             }
46 
47             Object Amount = view.GetRowCellDisplayText(e.RowHandle, this.gridColumn_Amount);
48             if (Amount != null && Amount.ToString() != "")
49             {
50                 decimal s_Amount = decimal.Parse(Amount.ToString());//状态
51                 if (s_Amount < 0 && e.Column.FieldName == "Amount") { e.Appearance.ForeColor = Color.Red; }
52 
53             }
54 
55         }
56 
57        
58         private void gridView1_ShowingEditor(object sender, CancelEventArgs e)
59         {
60             GridView view = sender as GridView;
61 
62             string s_Status = view.GetFocusedRowCellDisplayText(this.gridColumn_Status);//状态
63             
64             
65             if (s_Status == "已结") { e.Cancel = true; }
66             if (s_Status == "冲抵") { e.Cancel = true; }
67             if (view.FocusedColumn.FieldName != "Check") { e.Cancel = true; }//只有check可编辑
68         }

View Code

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原文地址：https://www.cnblogs.com/xiajing12345/p/3189341.html