Refresh only Check Box in GridView

Posted Date: 25 Dec 2011 Posted By:: Madhu Babu Member Level: Bronze Member Rank: 3076 Points: 5 Responses: 2

I have a problem in my project. I have Check Box and TextBox in one column in my GrieView. When I check the check box in my GridView I need to make visible true for TextBox. But when I check my check box, full page is refreshing. My code is as follows...

<asp:GridView ID="GridView1" runat="server" AllowPaging="True" AutoGenerateColumns="False" Height="90px" PageSize="5" Width="909px" onrowdatabound="GridView1_RowDataBound">

<asp:TemplateField HeaderText="Is Default">
<ItemTemplate>

<asp:UpdatePanel EnableViewState="true" ID="up2" runat="server">
<Triggers>
<asp:AsyncPostBackTrigger controlid="chkDefault" eventname="CheckedChanged" />
</Triggers>
<ContentTemplate>
<asp:CheckBox ID="chkDefault" runat="server" AutoPostBack="true" OnCheckedChanged ="chkDefault_CheckedChanged" />

<asp:TextBox ID="txtDefault" runat="server" Width="120" Height="25" Visible="false"></asp:TextBox >
</ContentTemplate>
</asp:UpdatePanel>
</ItemTemplate>
</asp:TemplateField>

</Columns>
</asp:GridView>

protected void chkDefault_CheckedChanged(object sender, EventArgs e)
{
string str;
CheckBox chk = (CheckBox)sender;

chk.AutoPostBack = true ;
foreach (GridViewRow gvrow in GridView1.Rows)
{
bool result = ((CheckBox)gvrow.FindControl("chkDefault")).Checked;

TextBox txt = (TextBox)gvrow.Cells[4].FindControl("txtDefault");

if (result == true)
{
txt.Visible = true;
txt.Focus();
str = txt.Text;
}
else if (result == false)
{
txt.Visible = false;
str = null;
}
}

}

Responses

#648392 Author:

Kushal Zamkade Member Level: Gold Member Rank: 157 Date: 25/Dec/2011 Rating: 2 out of 5

Points: 4

Hi,
Hide the AutoPostback =true , so that the page will not refresh when check box is clicked.



protected void chkDefault_CheckedChanged(object sender, EventArgs e)
{
string str;
CheckBox chk = (CheckBox)sender;

//chk.AutoPostBack = true ;

foreach (GridViewRow gvrow in GridView1.Rows)
{
bool result = ((CheckBox)gvrow.FindControl("chkDefault")).Checked;

TextBox txt = (TextBox)gvrow.Cells[4].FindControl("txtDefault");

if (result == true)
{
txt.Visible = true;
txt.Focus();
str = txt.Text;
}
else if (result == false)
{
txt.Visible = false;
str = null;
}
}

}

With Regards
Kushal

#648425 Author: SonyMadhu Member Level: Gold Member Rank: 45 Date: 26/Dec/2011 Rating: Points: 2
Hi Madhu, To refresh only checkboxes, `foreach (GridDataItem dataItem in GridView1.MasterTableView.Items) { (dataItem.FindControl("chkDefault") as CheckBox).Checked = false; }` Hope this will help you. Regards, Madhu Be so hapy wen others look at you,they become hapy too

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