Devexpress GridControl中RepositoryItemLookUpEdit级联显示控制

方法/步骤

1.

1

1. RepositoryItemLookUpEdit

要显示

控件的创建，我是在CustomRowCellEditForEditing这个事件下处理的。（因为我所需

的列是动态创建的，所以需要这样创建，如果你是固定显示，直接绑定

RepositoryItemLookUpEdit

RepositoryItemLookUpEdit

点击事件就可以了。）在这个事件里面，还可以控制某一列不同行显示不同控件。（因

为Devexpress是只能设置某一列控件的属性的，不能精准到控制每个单元格中的控件）

//DEPOT 堆场列 级联 PORT港口列

private void Frm _Load(object sender, EventArgs e) { }

void gridView_CustomRowCellEditForEditing(object sender, DevExpress.XtraGrid.Views.Grid.CustomRowCellEditEventArgs e) {

DevExpress.XtraGrid.Views.Grid.GridView view = sender as DevExpress.XtraGrid.Views.Grid.GridView;

DevExpress.XtraEditors.Repository.RepositoryItemLookUpEdit lue = new DevExpress.XtraEditors.Repository.RepositoryItemLookUpEdit(); switch (e.Column.FieldName) {

case \"DEPOT\": //获取该行port

string portFilter = view.GetRowCellValue(e.RowHandle, \"PORT\").ToString(); if (portFilter != null && portFilter != \"\") {

this.depotBindingSource.Filter = string.Format(\"Port='{0}'\", portFilter); } else {

gridView.CustomRowCellEditForEditing += gridView_CustomRowCellEditForEditing;

//自定义一个查不到结果的 过滤条件

lue.DataSource = this.depotBindingSource.Filter = string.Format(\"Port='123456'\", portFilter); }

#region RepositoryItemLookUpEdit 格式化 lue.DataSource = depotBindingSource; lue.DisplayMember = \"CODE\";

lue.ValueMember = \"CODE\";

lue.CharacterCasing = System.Windows.Forms.CharacterCasing.Upper; lue.Columns.AddRange(new DevExpress.XtraEditors.Controls.LookUpColumnInfo[] {

new DevExpress.XtraEditors.Controls.LookUpColumnInfo(\"CODE\", 90, \"Code\"), new DevExpress.XtraEditors.Controls.LookUpColumnInfo(\"Desp\", 350, \"Desp\"),

new DevExpress.XtraEditors.Controls.LookUpColumnInfo(\"Port\", 60, \"Port\")}); lue.PopupFormMinSize = new System.Drawing.Size(500, 0); lue.PopupWidth = 500; #endregion

//LookUpEdit值改变后触发

lue.EditValueChanged += lue_EditValueChanged; //下拉框选中值后，需要进行转换 lue.ParseEditValue += lue_ParseEditValue; //指定该列控件 e.RepositoryItem = lue; break; } } 2.

//选择RepositoryItemLookUpEdit的值时进行的处理。

void lue_EditValueChanged(object sender, EventArgs e) {

DevExpress.XtraEditors.BaseEdit edit = gridView.ActiveEditor; switch (gridView.FocusedColumn.FieldName) { case \"DEPOT\"://堆场 列

gridView.SetFocusedRowCellValue(gridView.Columns[\"DEPOT\"], edit.EditValue);

break; } } 3.

//grid中的下拉框必须要处理一下，不然会报（对象必须实现iconvertible） 错误

void lue_ParseEditValue(object sender,

DevExpress.XtraEditors.Controls.ConvertEditValueEventArgs e) {

if (e.Value != null)

e.Value = e.Value.ToString();

else

e.Value = \"\"; e.Handled = true; }