Intersoft Community - WebGrid Enterprise - WebGrid DropDownList has one selection

WebGrid DropDownList has one selection

bernard — Mon, 04 Jun 2012 22:03:09 GMT

Hi Ahmed,

Glad to hear that you have solved the problem. Thank you for your valuable feedback.

Regards,

Bernard

WebGrid DropDownList has one selection

adajani@najiasystems.com — Mon, 04 Jun 2012 10:19:09 GMT

Yes, it is working fine now. Thank you & regards.

WebGrid DropDownList has one selection

bernard — Thu, 31 May 2012 21:51:43 GMT

Hi Ahmed,

Is it working fine now? If you have any other question please don’t hesitate to ask us.

Regards,

Bernard

WebGrid DropDownList has one selection

adajani@najiasystems.com — Thu, 31 May 2012 14:59:59 GMT

Thank you Bernard.

I ended up clearing and loading the dropdowns in the PrepareDataBinding event and it has been consistant. I am still using InitializeLayout event though to create and add the columns to the grid.

Regards

WebGrid DropDownList has one selection

bernard — Thu, 31 May 2012 00:50:14 GMT

Hi Ahmed,

I’ve look on your code. I think the problem is WebValueList setted in wrong event. On InitializeLayout event, I suggest you to not to place dynamic object or data related settings especially for object that created during the runtime. You can clear and load the WebValueList on PrepareDataBinding event. I attach my sample here. Hope it helps.

Regards,

Bernard

WebGrid DropDownList has one selection

adajani@najiasystems.com — Wed, 30 May 2012 11:57:52 GMT

Thank you for your reply Bernard. I actually don't use the PrepareDataBinding event. And I never check for IsPostBack or IsFlyPostBack.

I have a DataSource that I bind the grid to. In the InitializeLayout event, I call a function to clear any values in the WebValueLists. Then I call another function to load, create, and add the columns to the Grid. Seperately, I call another function that fills the WebValueList with a DataSource.

CType(WebGrid.RootTable.Columns.GetNamedItem(columnName).ValueList, ISNet.WebUI.WebGrid.WebValueList).ClearCachedDataSource()

Dim gridCol As New ISNet.WebUI.WebGrid.WebGridColumn
gridCol.DataMember = columnName
gridCol.Caption = columnCaption
gridCol.Name = columnName
gridCol.ColumnType = ISNet.WebUI.WebGrid.ColumnType.Text
gridCol.EditType = ISNet.WebUI.WebGrid.EditType.DropdownList
gridCol.DataType = "System.String"

Dim valueList As ISNet.WebUI.WebGrid.WebValueList = WebGrid.RootTable.Columns.GetNamedItem(gridCol.Name).ValueList
valueList.SetDataSource(myDataSource, myTextField, myValueField)

WebGrid DropDownList has one selection

bernard — Wed, 30 May 2012 00:30:46 GMT

Hi Ahmed,

I’ve look for the sample that you show above and I figured the problem is on PrepareDataBinding event. This problem occurs because ValueList is not setted when PrepareDataBinding event. To resolve this issue, you can remove the validation (if (!IsPostBack)) from PrepareDataBinding event.

I put the revision of the sample here. Hope it helps.

Regards,

Bernard

WebGrid DropDownList has one selection

adajani@najiasystems.com — Tue, 29 May 2012 17:29:08 GMT