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Getting gridview rowcount through javascript RSS

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Last post Jan 28, 2010 09:21 AM by samipKS

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DanMikkelsen

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Getting gridview rowcount through javascript

Jan 06, 2008 09:04 PM|LINK
Yes, how could i get the rowcount of a gridwiev through some javascript code?
- Moved by limno on Jan 06, 2008 09:15 PM
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dcwhisen

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Re: Getting gridview rowcount through javascript

Jan 06, 2008 09:21 PM|LINK

Try taking a look here.

http://www.netomatix.com/development/GridViewClientSideAccess.aspx

If my reply helps answer your question then please mark as answer.
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jpe.pinho

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Re: Getting gridview rowcount through javascript

Jan 06, 2008 10:11 PM|LINK

Hi its easy,

When a gridview is parsed and sended to the client browser it is parsed to a table so you just have to find that
element and count the rows and subtract the header, footer or pager ..

JP.Pinho
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vinz

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Re: Getting gridview rowcount through javascript

Jan 07, 2008 09:03 AM|LINK

One way to do that is store the value of the gridview row counts in aspnet HiddenField after binding your gridView like

DataTable dt = //configure datasource here

GridView1.DataSource = dt;

GridView1.DataBind();

HiddenField1.value = GridView1.Rows.Count.ToString();

Then with the value of the HiddenField you can access it in your JS code

var count = document.getElementById('HiddenField1');

alert(count.value);

Hope my suggestion helps

Vincent Maverick Durano, MVP
MessageBox Controls for WebForms | Blog | Twitter | Linkedin
- Marked as answer by DanMikkelsen on Jan 07, 2008 08:33 PM
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raheel.hussa...

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Re: Getting gridview rowcount through javascript

Jan 07, 2008 10:55 AM|LINK
1) Keep the following hidden variable on your form
<input type="hidden" id="htmlHidden" runat="server" />

2) Everytime, when Binding the Gridview, put a value in this Hidden Variable

GridView1.DataSource = tbl
GridView1.DataBind()
htmlHidden.value = GridView1.Rows.Count.ToString() 'Binding the GridView

3) To call this value in Javascript, on click of any button to verify the value.
alert(document.forms[0].htmlHidden.value);

Regards -

Raheel Hussain
--------------------------------
Blog:
http://www.dnfug.com/web/blogs/raheel/
URL: http://www.raheelhussain.com/
--------------------------------

This posting is provided "AS IS" with no warranties, and confers no rights.
- Marked as answer by DanMikkelsen on Jan 07, 2008 08:33 PM
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DanMikkelsen

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113 Posts

Re: Getting gridview rowcount through javascript

Jan 07, 2008 07:37 PM|LINK

Im trying the hidden field, but cant get the javascript to work. I have added a hidden field called hidrownumber, and made it "runatserver".

what is wrong with this javascript that i have put in a buttons onclick event?

if(document.getElementByID('<% =hidrownumber.clientID %>').value="0") {alert('error');return false;}
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raheel.hussa...

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Re: Getting gridview rowcount through javascript

Jan 07, 2008 08:10 PM|LINK
DanMikkelsen

if(document.getElementByID('<% =hidrownumber.clientID %>').value="0") {alert('error');return false;}

Please make sure that it is not

.value="0" with single equals sign, it should be == for comparision

Secondly

you function for Javascript getElementByID is wrong as the right function is
getElementById
with small d in the last, remember it is always case sensitive

so try the following code
```
if  (document.getElementById('<%=hdnfield.clientID%>').value =="0")
                {
                alert ("error");
                }
```
Regards - raheel
Raheel Hussain
--------------------------------
Blog:
http://www.dnfug.com/web/blogs/raheel/
URL: http://www.raheelhussain.com/
--------------------------------

This posting is provided "AS IS" with no warranties, and confers no rights.
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DanMikkelsen

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113 Posts

Re: Getting gridview rowcount through javascript

Jan 07, 2008 08:35 PM|LINK

Thanks for the help. Now it works like it is supposed to!
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samipKS

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Re: Getting gridview rowcount through javascript

Jan 28, 2010 09:21 AM|LINK

Thanks, it helped me.