Gridview Column make visible true and false.

Question

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I want to make gridview column visible true and false according user select column name from checkbox list and deselect.My code is as follow

this code is on button click event:

C#

for (int i = 0; i <= chklstSelectCol.Items.Count - 1; i++)
       {
           if (chklstSelectCol.Items[i].Selected == false)
               grvadhocrpt.Columns[i].Visible = false;
           else
               grvadhocrpt.Columns[i].Visible = true;
       }
grvadhocrpt.DataBind();

if i tried to make visible false column of gridview when first assigning datasource
this do give result but after that it won't

please help,
vipul

Posted 18-Sep-11 20:12pm

vipul ghadge

Updated 18-Sep-11 20:15pm

m@dhu

v2

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4 solutions

Solution 3

C#

grvadhocrpt.DataSource = ds.Tables[0];
grvadhocrpt.DataBind();
for (int i = 0; i <= chklstSelectCol.Items.Count - 1; i++)
{
if (chklstSelectCol.Items[i].Selected == false)
grvadhocrpt.Columns[2].Visible = false;// specify coloumn no. instead of i
else
grvadhocrpt.Columns[2].Visible = true;
}

Posted 18-Sep-11 20:37pm

Anuja Pawar Indore

Comments

vipul ghadge 19-Sep-11 3:13am

this works only one time when i first assigning datasorce to gridview,
actly i have to use 'i' there instead of col. no. as user will select column name from chekbox list which one to display and which one not,please tell me guys if you have other way to do this.

Anuja Pawar Indore 19-Sep-11 4:12am

are you writing this code in grvadhocrpt_RowDataBound or some where else

vipul ghadge 19-Sep-11 4:27am

i am writing this code in one function ,
and calling this function on pageload event(am also doing ispostback check) and on button event.just to test i have as well written this on rowdatabound and then removed.

Anuja Pawar Indore 19-Sep-11 4:54am

Vipul you better post your code, then only can help you. As it should work, syntatically its correct

vipul ghadge 19-Sep-11 6:55am

Hey ,appreciate your help

Solution 2

Hi,
you need to set

AutoGenerateColumns="false"

to your gridview initialization code of aspx page. did you set this property.

also refer:
Using the AutoGenerateColumns attribute to control column rendering[^]
http://stackoverflow.com/questions/114521/hide-asp-net-gridview-row[^]

Posted 18-Sep-11 20:36pm

MaulikDusara

Comments

vipul ghadge 19-Sep-11 2:58am

Yes ,I Have set that property

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P.Salini · Accepted Answer · 2011-09-18T20:20:00

Solution 1

You first bind the grid and then write the code to make grid column visible false
it will work.

Posted 18-Sep-11 20:20pm

P.Salini

Updated 18-Sep-11 20:21pm

v2

Comments

vipul ghadge 19-Sep-11 2:32am

thanks for rply,

actually , i have tried that also,
i have even tried to make each row's cell visible false on rowdatabound event it still not working

P.Salini 19-Sep-11 2:45am

Are you getting any error.

vipul ghadge 19-Sep-11 3:05am

nope ,m not getting any error.

vipul ghadge · Accepted Answer · 2011-09-19T00:57:00

earlier my code was on <asp:Button
and now i place code this code on one <asp:ImageButton it giving expected result ,I think problem may be that of button which i have place in panel,this panel I am using like that of chat box on FB.And that imagebutton i am using is on aspx page,my function is finely working on this image button.

this time i have use rowcreated event instead of rowdatabound event and writen this

C#

GridView grvAd = (GridView)sender;
        if (e.Row.RowType == DataControlRowType.Header)
        {
            for (int i = 0; i <= chklstSelectCol.Items.Count - 1; i++)
            {
                if (chklstSelectCol.Items[i].Selected == false)
                    grvAd.Columns[i].Visible =false;
                else
                {
                    grvAd.Columns[i].HeaderStyle.CssClass = "";
                    grvAd.Columns[i].Visible = true;
                }
            }

        }

thank you guys,truly appreciate your help.