GridView翻页时保持CheckBox选择状态
//定义翻页bool
1
private bool changed=false;
//定义保存选择项主键集合属性
![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
1
protected List<string> SelectedItems
2
{
3
get { return ViewState["selecteditems"]!=null ? (List<string>)ViewState["selecteditems"] : null; }
4
set { ViewState["selecteditems"] = value; }
5
}
//获取选择项主键![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
2
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockStart.gif)
3
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
4
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
5
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockEnd.gif)
1
private void GetSelectedItem()
2
{
3
List<string> selecteditems = null;
4
if (this.SelectedItems == null)
5
{
6
selecteditems = new List<string>();
7
}
8
else
9
{
10
selecteditems = this.SelectedItems;
11
}
12![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
13
//获取选择的记录
14
for (int i = 0; i < this.gvwResult.Rows.Count; i++)
15
{
16
CheckBox cbx = (CheckBox)this.gvwResult.Rows[i].FindControl("chkSelect");
17![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
18
string id = this.gvwResult.DataKeys[i].Values[0].ToString();
19![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
20
if (selecteditems.Contains(id) && !cbx.Checked)
21
selecteditems.Remove(id);
22
if (!selecteditems.Contains(id) && cbx.Checked)
23
selecteditems.Add(id);
24
}
25
this.SelectedItems = selecteditems;
26
}
//在 DataBinding事件中执行GetSelectedItem()![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
2
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockStart.gif)
3
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
4
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
5
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
6
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
7
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
8
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
9
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
10
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
11
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
12
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
13
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
14
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
15
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
16
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
17
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
18
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
19
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
20
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
21
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
22
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
23
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
24
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
25
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
26
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockEnd.gif)
1
protected void gvwResult_DataBinding(object sender, EventArgs e)
2
{
3
GetSelectedItem();
4
changed=true;
5
}
//在行绑定时确定CheckBox选中状态![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
2
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockStart.gif)
3
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
4
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
5
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockEnd.gif)
1
protected void gvwResult_RowDataBound(object sender, GridViewRowEventArgs e)
2
{
3
if (e.Row.RowIndex > -1 && this.SelectedItems!= null)
4
{
5
CheckBox cbx = (CheckBox)e.Row.FindControl("chkSelect");
6
string id = this.gvwResult.DataKeys[e.Row.RowIndex].Values[0].ToString();
7
if (SelectedItems.Contains(id))
8
cbx.Checked = true;
9
else
10
cbx.Checked = false;
11
}
12
}
//根据changed确定是否再执行GetSelectedItem(),否则不翻页时选择项获取不到.![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
2
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockStart.gif)
3
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
4
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
5
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
6
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
7
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
8
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
9
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
10
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
11
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
12
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockEnd.gif)
1
protected void btnConfirm_Click(object sender, EventArgs e)
2
{
3
if(!changed)
4
GetSelectedItem();
5
foreach (string id in (List<string>)this.SelectedItems)
6
{
7
//
..
8
}
9
}
![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
2
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockStart.gif)
3
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
4
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
5
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
6
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
7
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
![](https://www.cnblogs.com/Images/dot.gif)
8
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
9
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockEnd.gif)