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[Solved] How to maintain checkbox state during paging

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Grid

This is a migrated thread and some comments may be shown as answers.

Testing asked on 30 Jan 2014, 11:52 AM

hi,
I want to maintain checkbox state after paging
here is my code

<telerik:RadGrid ID="grid1" runat="server" AllowPaging="True"

CssClass="rgHeaderDiv" AllowMultiRowSelection="True"

AutoGenerateColumns="False"

onneeddatasource="grid1_NeedDataSource" ShowFooter="true"

GridLines="None" ShowGroupPanel="True" >

<ClientSettings AllowDragToGroup="True">

<Scrolling AllowScroll="true" UseStaticHeaders="true" SaveScrollPosition="true" />

</ClientSettings>

<MasterTableView AutoGenerateColumns="false" > <FilterItemStyle HorizontalAlign="Left" />

<FilterItemStyle HorizontalAlign="Left" />

<Columns>

<telerik:GridTemplateColumn UniqueName="CheckBoxTemplateColumn" HeaderStyle-Width="5%">

<ItemTemplate>

<asp:CheckBox ID="chk_ItemProperty" runat="server" OnCheckedChanged="chk_ItemProperty_CheckedChanged"

AutoPostBack="True" />

</ItemTemplate>

<HeaderTemplate>

<asp:CheckBox ID="chk_HeaderProperty" runat="server" OnCheckedChanged="chk_HeaderProperty_CheckedChanged"

AutoPostBack="True" />

</HeaderTemplate>

</telerik:GridTemplateColumn>

<telerik:GridBoundColumn Display="false" DataField="col" DataType="System.Int32" HeaderText="col" FilterControlAltText="Filter column column" UniqueName="col"/>

<telerik:GridBoundColumn DataField="Col1" DataType="System.Decimal" HeaderText="Col1" FilterControlAltText="Filter column column" UniqueName="Col1" HeaderStyle-Width="15%" ItemStyle-HorizontalAlign="Left" HeaderStyle-HorizontalAlign="Left"/>

<telerik:GridBoundColumn DataField="Col2" DataType="System.String" HeaderText="Col2" FilterControlAltText="Filter column column" UniqueName="Col2" HeaderStyle-Width="15%" ItemStyle-HorizontalAlign="Left" HeaderStyle-HorizontalAlign="Left" />

<telerik:GridBoundColumn DataField="Col3" DataType="System.Int32" HeaderText="Col3" FilterControlAltText="Filter column column" UniqueName="Col3" HeaderStyle-Width="15%" ItemStyle-HorizontalAlign="Left" HeaderStyle-HorizontalAlign="Left"/>

</Columns>

</MasterTableView>

</telerik:RadGrid>

in cs file

protected void chk_ItemProperty_CheckedChanged(object sender, EventArgs e)

{

((sender as CheckBox).NamingContainer as GridItem).Selected = (sender as CheckBox).Checked;

bool checkHeader = true;

foreach (GridDataItem dataItem in grid1.MasterTableView.Items)

{

if (!(dataItem.FindControl("chk_ItemProperty") as CheckBox).Checked)

{

checkHeader = false;

break;

}

GridHeaderItem headerItem = gv_LeaseProperty1.MasterTableView.GetItems(GridItemType.Header)[0] as GridHeaderItem;

(headerItem.FindControl("chk_HeaderProperty") as CheckBox).Checked = checkHeader;

}

protected void chk_HeaderProperty_CheckedChanged(object sender, EventArgs e)

{

CheckBox headerCheckBox = (sender as CheckBox);

foreach (GridDataItem dataItem in grid1.MasterTableView.Items)

{

(dataItem.FindControl("chk_ItemProperty") as CheckBox).Checked = headerCheckBox.Checked;

dataItem.Selected = headerCheckBox.Checked;

}

its works fine ... but when I change page index then selected state of check box not maintain.
please suggest me how to solve this problem.

1 Answer, 1 is accepted

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