Reg: WebCombo with Scanner Issue | Infragistics Forums

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Reg: WebCombo with Scanner Issue

JG Giridhar posted over 17 years ago

Hi,

We are using the "Type Ahead Webcombo" control in our web application.We are loading the items in the combo based on the characters typed in the typable area of the combo. We will load 20 items initially and when the user starts typing we will load the items beginning with the typed characters. I have altered the initialize_datasource event of the Webcombo. Normally this will load all items but we have modified it so that it loads only the top 20 records which begin with the typed characters. This method of data filtering works fine while typing slowly.When we type the values fast and press tab then the previous value remains as it is in the combo. In our application we are instead of typing setting the values from read from barcode scanner. This is even faster firing and hence the values are not set properly in the combo only the old value remains. Please help us in solving the issues due to fast data entry in the combo.

Thanks in Advance,

Giridhar.J.G

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Donald Burr posted over 16 years ago

Silly question, but if you are using a barcode scanner that does not need the same user-intervention that a normal type-ahead does. Why go to the trouble and overhead of using the combo box.
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JG Giridhar posted over 16 years ago in reply to Donald Burr

The user should have the provision to scan the barcode label and if the barcode label is not available or damagaed the user should be able to type-in the code and at the same time see the available codes for ease of selection. That is the reason why we need to use a type-ahead combo, but still it should be able to take a scanner input also. When we develop a good software, we need to take care of all situations and that is the intent behind this question. As far as I see it, it is a simple aspect that infragistics can solve it in the next version at least provided it is understood.

Try - copy/paste from clipboard into a typeahead field and you will find that it doest work.
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Donald Burr posted over 16 years ago in reply to JG Giridhar

There may be two issues here.

I have no problem getting this to work cutting and pasting as you suggest BUT only when the list is populated.

That said; I have a DDL with WebCombo.EnableXmlHTTP enabled and RowRange set to 20 that works beautifully when you scroll the list; however it does not work properly when setting the typeahead type to suggest and entering a value that is not already in the list.
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