How does asp.net implement the Gridview paging save option
Editor to share with you how asp.net to achieve Gridview paging save options, I believe that most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!
The code is as follows:
# region / / 'Revision: 1.00 Created Date: 2013-08-02 Created ID: Una [# 1300071] add multiple option boxes
/ / /
/ / Session "take many" box value
/ / /
Private void RememberOldValues ()
{
ArrayList categoryIDList = new ArrayList ()
String index = ""
Foreach (GridViewRow row in gridView.Rows)
{
Index = (string) gridView.DataKeys [row.RowIndex] .value
Bool result = ((CheckBox) row.FindControl ("DeleteThis")) .Checked
/ / Check in the Session
If (Session ["id"]! = null)
CategoryIDList = (ArrayList) Session ["id"]
If (result)
{
If (! categoryIDList.Contains (index))
CategoryIDList.Add (index)
}
Else
CategoryIDList.Remove (index)
}
If (categoryIDList! = null & & categoryIDList.Count > 0)
Session ["id"] = categoryIDList
}
/ / /
/ / before Session, the multi-frame is true.
/ / /
Private void RePopulateValues ()
{
ArrayList categoryIDList = (ArrayList) Session ["id"]
If (categoryIDList! = null & & categoryIDList.Count > 0)
{
Foreach (GridViewRow row in gridView.Rows)
{
String index = (string) gridView.DataKeys [row.RowIndex] .value
If (categoryIDList.Contains (index))
{
CheckBox myCheckBox = (CheckBox) row.FindControl ("DeleteThis")
MyCheckBox.Checked = true
}
}
}
}
# endregion
The copy code is as follows:
Protected void gridView_PageIndexChanging (object sender, GridViewPageEventArgs e)
{
RememberOldValues ()
GridView.PageIndex = e.NewPageIndex
BindData ()
RePopulateValues ()
}
The copy code is as follows:
Protected void btnSelect_Click (object sender, EventArgs e)
{
String items = ""
ArrayList categoryIDList = new ArrayList ()
String index = ""
Foreach (GridViewRow row in gridView.Rows)
{
Index = (string) gridView.DataKeys [row.RowIndex] .value
Bool result = ((CheckBox) row.FindControl ("DeleteThis")) .Checked
/ / Check in the Session
If (Session ["id"]! = null)
CategoryIDList = (ArrayList) Session ["id"]
If (result)
{
If (! categoryIDList.Contains (index))
CategoryIDList.Add (index)
}
Else
CategoryIDList.Remove (index)
}
If (categoryIDList! = null & & categoryIDList.Count > 0)
For (int I = 0; I < categoryIDList.Count; iTunes +)
{
Items + = categoryIDList [I] + ","
}
Items = items.Substring (0, items.Length-1)
ScriptManager.RegisterStartupScript (this, this.GetType (), "," check ('"+ items +"'); ", true)
Session.Remove ("id")
}
The above is all the contents of the article "how to achieve Gridview pagination saving options for asp.net". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!
