griedview文本框中的更新在编辑模式下传递旧值 [英] update in griedview text box passes old value in edit mode

问题描述

这是我的gridview更新事件的代码。在编辑模式下我更改文本框中的值仍然会传递旧值..

 protected void SubCategoryGrid_RowUpdating（object sender，GridViewUpdateEventArgs e）
 {
 string scn; 
 int catid; 
 int scatid = Convert.ToInt32（（（Label）（SubCategoryGrid.Rows [e.RowIndex] .FindControl（scidlbl）））。Text）; 
 TextBox box1 =（TextBox）SubCategoryGrid.Rows [e.RowIndex] .FindControl（txteditscatname）; 
 TextBox txt2 =（TextBox）SubCategoryGrid.Rows [e.RowIndex] .FindControl（txteditcatid）; 
 
 scn = box1.Text; 
 catid = Convert.ToInt32（txt2.Text）; 
 d.editsubcategory（scn，scatid，catid）; 
 SubCategoryGrid.EditIndex = -1; 
 FILLSUBCATGRID（）; 
} 
 

解决方案

我在编辑模式下更改文本框中的值后仍旧过去值..

这通常发生在事件引发之前再次重新绑定网格时。要处理/避免它，请确保在页面属性IsPostback中包装了datagrid数据绑定代码。

  if （！IsPostback）
 {
  //   gridview1.Datasource  
  //   gridview.Databind（） 
} 

this is my code for gridview update event.after i change value in text box in edit mode still it passes old value..

protected void SubCategoryGrid_RowUpdating(object sender, GridViewUpdateEventArgs e)
       {
           string scn;
           int catid;
           int scatid = Convert.ToInt32(((Label)(SubCategoryGrid.Rows[e.RowIndex].FindControl("scidlbl"))).Text);
           TextBox box1 = (TextBox)SubCategoryGrid.Rows[e.RowIndex].FindControl("txteditscatname");
           TextBox txt2 = (TextBox)SubCategoryGrid.Rows[e.RowIndex].FindControl("txteditcatid");

           scn = box1.Text;
           catid = Convert.ToInt32(txt2.Text);
           d.editsubcategory(scn, scatid,catid);
           SubCategoryGrid.EditIndex = -1;
           FILLSUBCATGRID();
       }

解决方案

after i change value in text box in edit mode still it passes old value..
This generally happens when you rebind the grid again before the event is raised. To handle/avoid it, make sure you have wrapped your datagrid databind code within page property IsPostback.

if(!IsPostback)
{
  // gridview1.Datasource
  // gridview.Databind()
}

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