About ajax in gridview

Question

Dear experts I have gridview and in that i have taken radiobutton how can i fire checked changed event of radiobutton using ajax. I have tried using scrip manager update panel and content template

Mayur Gujrathi · Answer

I have solved it bu=y taking image controls also in update panel Thanks for your reply

Amit Choudhary · Answer

Add an temp column having a label. update the label column with the image url. See if the text of label is updating if yes then you have to look at your image url it may not be pointing to the exact location of image. other wise your updatepanel is having problem in updating the content. Thanks.

Mayur Gujrathi · Answer

I am not getting why it is not working i am fetching image path on checked changed event of radiobutton and when i kept beak point then it shows me image url is coming but image is not displaying in image control class=grhd PageSize=50 Width=600px > ' Height=60px Width=60px /> --%> and coding for checke changed event Protected Sub check_CheckedChanged(ByVal sender As Object ByVal e As System.EventArgs) myds = DirectCast(ViewState(dsdata) DataSet) Dim chkbox As CheckBox = CType(sender CheckBox) Dim Grow As GridViewRow = CType(chkbox.NamingContainer GridViewRow) If (chkbox.Checked = True) Then Dim check As String = myds.Tables(0).Rows(0)(11).ToString() If (check = 0) Then btnauthorise.Enabled = True btnreject.Enabled = True End If strCureentRowIndex = Grow.RowIndex hdrowno.Value = strCureentRowIndex reqslipno = myds.Tables(0).Rows(strCureentRowIndex)(1).ToString() Boid = myds.Tables(0).Rows(strCureentRowIndex)(3).ToString() Dim path As String = SRV_ViewSignature(Boid) path = path.Replace(|*~| ) path = . + path '('|*~|' '').substring(1 ClientSign.replace('|*~|' '').length) imag.Visible = True Image2.Visible = True imag.ImageUrl = myds.Tables(0).Rows(strCureentRowIndex).Item(imagepath) Image2.ImageUrl = path End If End Sub

Muralidharan Deenathayalan · Answer

// ASP.NET RadioButton Demo OnCheckedChanged=RbAnswersCheckedChanged AutoPostBack=true/> // C# code-behind using System; using System.Collections.Generic; using System.Web.UI; using System.Web.UI.WebControls; namespace DemoWebsite { public partial class Default : Page { protected void Page_Load(object sender EventArgs e) { if (!Page.IsPostBack) { // The data source to test against List source = new List { One TwoThree FourFiveSix SevenEightNine }; gvAnswers.DataSource = source; gvAnswers.DataBind(); } } protected void RbAnswersCheckedChanged(object sender EventArgs e) { // Unchecks previously selected rows foreach (GridViewRow oldrow in gvAnswers.Rows) { ((RadioButton)oldrow.FindControl(rbAnswers)).Checked = false; } // Checks the new row RadioButton rb = (RadioButton)sender; GridViewRow row = (GridViewRow)rb.NamingContainer; ((RadioButton)row.FindControl(rbAnswers)).Checked = true; } } } For more information please refer the below link http://www.daniweb.com/web-development/aspnet/code/217424