Dynamically add multiple controls

[Affleck]

Hi,

I am trying to create a web form that allows users to upload files. I want to be able to provide the user with a link to add as many FileInput conrols as they need since they may have more than 1 file to upload. I can create a static version of this no problem.

I have a linkButton that is wired to the following method that should (in theory) add a new HtmlInputFile to a placeholder..

private void addFileUpload_Click(object sender, System.EventArgs e)
{
plc_files.Controls.Add(new System.Web.UI.HtmlControls.HtmlInputFile());

}


but this throws an error : Object reference not set to an instance of an object

Can anyone help please?

TIA

Affleck

 

[ca8msm]

That would suggest to me that the page doesn't know what "plc_files" is.

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[Affleck]

ca8msm,

Can't believe i missed that! maybe I should sleep more.

Thanks!!

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