How to Hide or Show an Property in the DetailView Against the Value of the Object's Property.

Here ItemName will be Enable/Disable According to IsApplicable Property

Assembly:
DevExpress.XtraLayout;
DevExpress.ExpressApp.Win.Layout;

if (View is DetailView && View.ObjectTypeInfo.Type == typeof(Item))
{
if (e.Object.GetType() == typeof(Item))
{
LayoutControl layoutControl = ((LayoutControl)View.Control);
DetailView dv = (DetailView)View;
Item itm = (Item)View.CurrentObject;
LayoutControlItem target = FindLayoutControlItemByName("ItemName", ((LayoutControl)(((WinLayoutManager)(dv.LayoutManager)).Container)).Items);
ITypeInfo imf = (ITypeInfo)XafTypesInfo.Instance.FindTypeInfo(View.CurrentObject.GetType());
IMemberInfo imi = imf.FindMember("IsApplicable");
Boolean ValueOfIsApplicable = false;
if (imi != null)
{
ValueOfIsApplicable = (Boolean)imi.GetValue(View.CurrentObject);
}
layoutControl.BeginUpdate();
if (target != null && ValueOfIsApplicable)
{
target.HideToCustomization();
}
else
{
target.RestoreFromCustomization();
}
layoutControl.EndUpdate();
}
}
Here is Method
private LayoutControlItem FindLayoutControlItemByName(string name, CollectionBase items)
{
foreach (object item in items)
{
if (item is LayoutControlItem)
{
if ((item as LayoutControlItem).ControlName != null)
{
if ((item as LayoutControlItem).ControlName.IndexOf(name) >= 0)
{
return item as LayoutControlItem;
}}}}
return null;
}

How To Rename a TAB on DetailView

To Rename a TAB you have to Make a Method given below

Assembly:
DevExpress.XtraLayout;
DevExpress.ExpressApp.Win.Layout;
public void RenameTab(DetailView view, string tabName, bool isVisible)
{ LayoutControl layoutControl = ((LayoutControl)view.Control); foreach (object obj in layoutControl.Items) { if (obj is TabbedControlGroup) { TabbedControlGroup tabbedControlGroup = (TabbedControlGroup)obj; foreach (object item in tabbedControlGroup.TabPages) { string Name = ((LayoutGroup)(item)).Name; if (Name.IndexOf("OriginalTABName1") >= 0 || Name.IndexOf("OrignalTABName2") >= 0) { if (Name.IndexOf(tabName) <= 0) { ((LayoutGroup)(item)).BeginUpdate(); ((LayoutGroup)(item)).CustomizationFormText = tabName; ((LayoutGroup)(item)).Text = tabName; ((LayoutGroup)(item)).EndUpdate(); } return;}}}} layoutControl.EndUpdate(); } Now Write Code on ObjectChange void ObjectSpace_ObjectChanged(object sender, ObjectChangedEventArgs e) { if (View is DetailView && View.ObjectTypeInfo.Type == typeof(Ledger)) { if (e.Object.GetType() == typeof(Ledger)) { LayoutControl layoutControl = ((LayoutControl)View.Control); DetailView dv = (DetailView)View; Ledger ldg = (Ledger)View.CurrentObject; LayoutControlItem target = FindLayoutControlItemByName("DeducteeType", ((LayoutControl)(((WinLayoutManager)(dv.LayoutManager)).Container)).Items); ITypeInfo imf = (ITypeInfo)XafTypesInfo.Instance.FindTypeInfo(View.CurrentObject.GetType()); IMemberInfo imi = imf.FindMember("IsTDSApplicable"); Boolean ValueOfIsTDSApplicable = false; if (imi != null) { ValueOfIsTDSApplicable = (Boolean)imi.GetValue(View.CurrentObject); } layoutControl.BeginUpdate(); if (target != null && ValueOfIsTDSApplicable) { RenameTab(dv, "TDSDetails", true); target.Text = "DeducteeType"; } else { RenameTab(dv, "TCSDetails", true); target.Text = "CollecteeType"; } layoutControl.EndUpdate(); }}}

How To Find LayoutControlItem on DetailView

To find LayoutControlItem you have to create a Method given below here Item is a Class on Which there is two property ItemName,IsApplicable Assembly: DevExpress.XtraLayout; DevExpress.ExpressApp.Win.Layout; when IsApplicable=true then ItemName Caption Property Changed according to your condition private LayoutControlItem FindLayoutControlItemByName(string name, CollectionBase items) { foreach (object item in items) { if (item is LayoutControlItem) { if ((item as LayoutControlItem).ControlName != null) { if ((item as LayoutControlItem).ControlName.IndexOf(name) >= 0) { return item as LayoutControlItem; }}}} return null; } Now Write code on your Desired Event like ControlCreated,ObjectSpace.ObjectChanged if (View is DetailView && View.ObjectTypeInfo.Type == typeof(Item)) { if (e.Object.GetType() == typeof(Item)) { LayoutControl layoutControl = ((LayoutControl)View.Control); DetailView dv = (DetailView)View; Item itm = (Item)View.CurrentObject; LayoutControlItem target = FindLayoutControlItemByName("ItemName", ((LayoutControl)(((WinLayoutManager)(dv.LayoutManager)).Container)).Items); ITypeInfo imf = (ITypeInfo)XafTypesInfo.Instance.FindTypeInfo(View.CurrentObject.GetType()); IMemberInfo imi = imf.FindMember("IsApplicable"); Boolean ValueOfIsApplicable = false; if (imi != null) { ValueOfIsApplicable = (Boolean)imi.GetValue(View.CurrentObject); } layoutControl.BeginUpdate(); if (target != null && ValueOfIsApplicable) { target.Text = "YourDesiredCaption1"; } else { target.Text = "YourDesiredCaption2"; } layoutControl.EndUpdate(); } }

How To DeleteDuplicateRecord From ArrayList

ar is ArrayList int index; for(int i=0; i<(ar.Count-1); i++) { index=ar.IndexOf(ar[i], i+1); while( index>i ) { ar.RemoveAt(index); if( i<(ar.Count-1) ) { index=ar.IndexOf(ar[i], i+1); } else { index=-1; } } }

How To Get Property Value From Application Model

string s = null; s = Application.Info.GetChildNode("Options").GetAttribute("CalculationOnObject").Value;

Auto Index in GridView

void gv_InitNewRow(object sender, InitNewRowEventArgs e) { GridView gvv = (GridView)sender; int a = 1; for (int i = 1; i <= gvv.RowCount; i++) { gvv.SetRowCellValue(e.RowHandle, "Index", a); a++; } }

Set Grid IndexBy Code

gv.Columns["BillNo"].VisibleIndex = 0;