. Net background to get the value of CheckBoxList,. netcheckboxlist

. Net background to get the value of CheckBoxList,. netcheckboxlist

. Net background to obtain the CheckBoxList value.

1. Front-end multi-choice controls

2. Obtain multiple values in the background

String str = string. Empty;

Foreach (ListItem li in cblStr. Items)

{

If (li. Selected = true)

{

Str + = li. Value + ",";

}

}

Str. TrimEnd (','); is the multiple values you need

Third: assign a value to the CheckBoxList

Foreach (string str in split)

{

For (int I = 0; I <CheckBoxList1.Items. Count; I ++)

{

If (CheckBoxList1.Items [I]. Text = str)

{

CheckBoxList1.Items [I]. Selected = true;

}

}

}

Type 4: determine whether or not to select

Var flag1 = 0;

Var checkobj = document. getElementById ("CheckBoxList1 ");

Var checks = checkobj. getElementsByTagName ("input ");

For (var n = 0; n {

If (checks [n]. type = "checkbox" & checks [n]. checked = true)

{

Flag1 = 1;

}

}

If (flag1 = 0)

{

Alert ("Select Topic settings! ");

Return false;

}