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POselect all checkbox in nested datalists
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copied!<p>I have a nested datalist structure and want to put select all checkboxes on every cathegories.</p> <p>the top checkbox works fine but dont know how to do it for per main cathegory</p> <p><img src="https://i.stack.imgur.com/hRQvF.png" alt="enter image description here"></p> <p>this works fine:</p> <pre><code> protected void cbTamaminiSec_CheckedChanged(object sender, EventArgs e) { CheckBox cbTemp; foreach (DataListItem ItemP in parentDataList.Items) { cbTemp = (CheckBox)parentDataList.Items[ItemP.ItemIndex].FindControl("cbTumunuSec"); cbTemp.Checked = cbTamaminiSec.Checked; DataList nestedDataList = (DataList)parentDataList.Items[ItemP.ItemIndex].FindControl("nestedDataList"); foreach (DataListItem Item in nestedDataList.Items) { cbTemp = (CheckBox)nestedDataList.Items[Item.ItemIndex].FindControl("cbTamam"); cbTemp.Checked = cbTamaminiSec.Checked; } } } </code></pre> <p>but don't know about partially select (below codes for the chechboxes in the parentdatalist) I put selected id as "0" to emphasize the problem</p> <pre><code> protected void cbTumunuSec_CheckedChanged(Object sender, EventArgs e) { int selected = 0;//= (int)parentDataList.SelectedItem.ToString(); // problem is here.. DataList nestedDataList = (DataList)parentDataList.Items[selected].FindControl("nestedDataList"); foreach (DataListItem Item in nestedDataList.Items) { CheckBox cbTemp = (CheckBox)nestedDataList.Items[Item.ItemIndex].FindControl("cbTamam"); cbTemp.Checked = true; } } </code></pre> <p>what is the solution</p>

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