asp.net - ASPXGridView Custom CallBack - Stack Overflow

admin管理员组

文章数量:1390906

We have the DevExpress grid and in the OnCustomCallback event we need to assign a hidden field value=true. After we need to get the hidden field value to javascript? We tried in following manner:

protected void dgUnReconcile_CustomCallback(object sender, ASPxGridViewCustomCallbackEventArgs e)
{
    ASPxGridView temp = ((DevExpress.Web.ASPxGridView.ASPxGridView)(sender));
    string gridInstancename = ((DevExpress.Web.ASPxGridView.ASPxGridView)(sender)).ClientInstanceName;

    if (gridInstancename.Equals("grid"))
    {
        List<Object> selected = dgUnReconcile.GetSelectedFieldValues(new[] { "Key" });
        if (selected.Count > 0)
        {    
                existingKey = true;//hidden field value
        }
    }
}

We need to access the hidden fields value through javascript

var ='<%# existingKey%>';

It always shows empty value.

We have the DevExpress grid and in the OnCustomCallback event we need to assign a hidden field value=true. After we need to get the hidden field value to javascript? We tried in following manner:

protected void dgUnReconcile_CustomCallback(object sender, ASPxGridViewCustomCallbackEventArgs e)
{
    ASPxGridView temp = ((DevExpress.Web.ASPxGridView.ASPxGridView)(sender));
    string gridInstancename = ((DevExpress.Web.ASPxGridView.ASPxGridView)(sender)).ClientInstanceName;

    if (gridInstancename.Equals("grid"))
    {
        List<Object> selected = dgUnReconcile.GetSelectedFieldValues(new[] { "Key" });
        if (selected.Count > 0)
        {    
                existingKey = true;//hidden field value
        }
    }
}

We need to access the hidden fields value through javascript

var ='<%# existingKey%>';

It always shows empty value.

• asp
• javascript
• aspxgridview

Share Improve this question Follow edited Oct 2, 2009 at 19:41 Greg 16.7k99 gold badges5454 silver badges100100 bronze badges asked Sep 30, 2009 at 17:21 subramanisubramani 1,06955 gold badges1313 silver badges2222 bronze badges

Add a ment  | 

2 Answers 2

Sorted by: Reset to default 2 +50

Try to use the JSProperties of the grid:

aspx:

<dxwgv:ASPxGridView ID="myGridView" ClientInstanceName="myGridView" runat="server">
</dxwgv:ASPxGridView>

sets the value in code-behind (C#):

myGridView.JSProperties["cpMyValue"] = "hello, world!";

gets the value on client (js):

alert(myGridView.cpMyValue);

To change other controls during a server-side event, you might need to disable callbacks (see the ASPxGridView.EnableCallBacks property) and place both the hidden field and grid control into the UpdatePanel.

Alternatively, you can do it on the client-side with javascript if you want to keep callbacks enabled. There's a similiar sample project attached here:

http://www.devexpress./Support/Center/p/Q201214.aspx

本文标签： aspnetASPXGridView Custom CallBackStack Overflow