克隆图像按钮后如何选择数据并在网格中显示.. [英] how to select select data and display in grid after cliking on image button..

问题描述

protected void ImageButton2_Click（object sender，ImageClickEventArgs e）

{

ImageButton b =（ImageButton）sender;

GridViewRow row =（ GridViewRow）b.Parent.Parent;

int rowIndex = row.RowIndex;

TextBox txtparametername =（TextBox）grdparameter.Rows [1] .Cells [1] .FindControl （txttargetvalue）;

MySqlConnection StrConnection = new MySqlConnection（）;

StrConnection.ConnectionString = StrConn;

try

{

StrConnection.Open（）;

MySqlCommand StrCommand = new MySqlCommand（）;

StrCommand.CommandType = CommandType.StoredProcedure;

StrCommand.CommandText =Get_ParameterName;



StrCommand.Connection = StrConnection;

StrCommand.Parameters。加WithValue（_ Tenant_Id，Convert.ToInt32（Session [Tenantid]））;

StrCommand.Parameters.AddWithValue（_ Branch_Id，Convert.ToInt32（Session [Branchid]））;

StrCommand.Parameters.AddWithValue（_ Patient_Id，Convert.ToInt32（Session [DiagnosisClickId]））;

StrCommand.Parameters.AddWithValue（_ DiseaseId，ddlselectdisease .SelectedValue）;





MySqlDataReader rdr = StrCommand.ExecuteReader（）;

while（rdr.Read （））

{



txtparametername.Text = Convert.ToString（rdr [ParameterName]）;



}





}

catch（Exception ex）

{

obj.InfoEntry（DateTime.Now ++getpatientdignosisdetails++Docto rDashboard.aspx++ ex.Message，）;

obj.InfoEntry（DateTime.Now ++ ex.StackTrace，）;

Session [strerrormsg] = DateTime.Now ++getpatientdignosisdetails++DoctorDashboard.aspx++ ex.Message;

Session [strerrortrace] = DateTime.Now ++ ex.StackTrace;

Response.Redirect（ErrorPage.aspx）;

}

finally

{



StrConnection.Close（）;

StrConnection.Dispose（）;

}



ModalPopup_Items.Show（）;

ModalPopupExtender1.Show（）;

Biomade.Visible = true;

LoadDdlDiseaseName（）;





}





这是例外ption发生

无法将System.Web.UI.Control类型的对象强制转换为''System.Web.UI.WebControls.GridViewRow''。

解决方案

为什么你使用ImageButton_Click事件如果提供了网格视图的RowCommand事件

使用行命令事件

  protected   void  grvTest_RowCommand（ object  sender，GridViewCommandEventArgs e）
 {
 GridViewRow row =（GridViewRow）（（ImageButton）e.CommandSource）.NamingContainer; 
 
} 

这里你将获得完整的行，现在只需找到此行中的控件



像TextBox txt = row.FindControl（YourTextBoxId）;



试试这样..如果解决方案使用完全，请接受溶液

protected void ImageButton2_Click(object sender, ImageClickEventArgs e)
{
ImageButton b = (ImageButton)sender;
GridViewRow row = (GridViewRow)b.Parent.Parent;
int rowIndex = row.RowIndex;
TextBox txtparametername = (TextBox)grdparameter.Rows[1].Cells[1].FindControl("txttargetvalue");
MySqlConnection StrConnection = new MySqlConnection();
StrConnection.ConnectionString = StrConn;
try
{
StrConnection.Open();
MySqlCommand StrCommand = new MySqlCommand();
StrCommand.CommandType = CommandType.StoredProcedure;
StrCommand.CommandText = "Get_ParameterName";

StrCommand.Connection = StrConnection;
StrCommand.Parameters.AddWithValue("_Tenant_Id", Convert.ToInt32(Session["Tenantid"]));
StrCommand.Parameters.AddWithValue("_Branch_Id", Convert.ToInt32(Session["Branchid"]));
StrCommand.Parameters.AddWithValue("_Patient_Id", Convert.ToInt32(Session["DiagnosisClickId"]));
StrCommand.Parameters.AddWithValue("_DiseaseId", ddlselectdisease.SelectedValue);


MySqlDataReader rdr = StrCommand.ExecuteReader();
while (rdr.Read())
{

txtparametername.Text = Convert.ToString(rdr["ParameterName"]);

}


}
catch (Exception ex)
{
obj.InfoEntry(DateTime.Now + " " + "getpatientdignosisdetails" + " " + "DoctorDashboard.aspx" + " " + ex.Message, "");
obj.InfoEntry(DateTime.Now + " " + ex.StackTrace, "");
Session["strerrormsg"] = DateTime.Now + " " + "getpatientdignosisdetails" + " " + "DoctorDashboard.aspx" + " " + ex.Message;
Session["strerrortrace"] = DateTime.Now + " " + ex.StackTrace;
Response.Redirect("ErrorPage.aspx");
}
finally
{

StrConnection.Close();
StrConnection.Dispose();
}

ModalPopup_Items.Show();
ModalPopupExtender1.Show();
Biomade.Visible = true;
LoadDdlDiseaseName();


}


this is the exception occurring
Unable to cast object of type ''System.Web.UI.Control'' to type ''System.Web.UI.WebControls.GridViewRow''.

解决方案

Why you are using ImageButton_Click Event if there is provision of RowCommand Event of grid veiw
Use Row Command Event

protected void grvTest_RowCommand(object sender, GridViewCommandEventArgs e)
       {
           GridViewRow row = (GridViewRow)((ImageButton)e.CommandSource).NamingContainer;

       }

Here you will get full row, now just find the control in this row

like TextBox txt = row.FindControl("YourTextBoxId");

Try like this.. if the solution is use full to you please accept the solution

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