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Specified cast not valid

Thread ID:





32112 Jul 21,2005 02:24 PM Jul 21,2005 03:24 PM Windows Forms 3
Tags: GridControl
Adam K.
Asked On July 21, 2005 02:24 PM

i am trying to set the value of a combobox cell with the following code: gridcontrol1[gridcontrol1.RowCount, CurCol].Text = ti.defaultvalue; where defaultvalue is a string. I am getting a runtime error (invalid cast exceptions: Specified cast not valid)l thanks, ak

Administrator [Syncfusion]
Replied On July 21, 2005 02:41 PM

Are you using style.DataSource, Style.DisplayeMember, style.ValueMember to set up the combobox cell? If so, is your ValueMember a string? If not, then you should not be setting .Text. Instead set .CellValue = to the object (of the proper type).

Adam K.
Replied On July 21, 2005 02:48 PM

i am setting it up as a combo box with following code _g[_g.RowCount, CurCol].ChoiceList = ti.enumeration; _g[_g.RowCount, CurCol].CellType = "ComboBox"; where ti.enumeration is a StringCollection please let me know your thoughts. thanks, ak

Administrator [Syncfusion]
Replied On July 21, 2005 03:24 PM

Here is sample set up you described. http://www.syncfusion.com/Support/user/uploads/GC_Combobox_5b7f9a8f.zip It seems to work OK. Do you have other settings like style.DropDownStyle or style.Exclusive or style.CellValueType that might be affecting this.


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