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Gridview redisplays hidden columns afer postback

Posted on 2016-09-23
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Last Modified: 2016-09-23
I am using a .net gridview in a web form that has some columns hidden

The gridview has AutoGeneratColumns=false.  Everything displays fine. The cells are made invisible on the RowDataBound event.  When I save a record to the database in a table not in the gridview the grid redraws and my columns that were invisible are suddenly visible.

I can not find an event that is firing that would do that,  I have set all the ONROWxxx Events on and put a debug statement at each one but do not see which is firing so that I can re-invisble the columns.

Thank you
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Question by:Charles Baldo
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zephyr_hex (Megan) earned 2000 total points
ID: 41812945
Is there a reason why you're setting the columns to hidden on RowDataBound ?  I'm assuming you only bind the data to the control when the page first loads (not on postback).

You can hide columns in Page_Load:
if(IsPostBack)  //if you keep your RowDataBound column hiding, then only do this when it's not postback.  or, remove the hiding from RowDataBound and always hide the column here regardless of whether it's postback
{
   Gridview1.Columns[0].Visible = false;  //hide first column of GridView1
}

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Author Closing Comment

by:Charles Baldo
ID: 41813175
Thank You
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