GridView中的问题 [英] Problem in GridView

问题描述

大家好，
我有一个gridview，我想从中获取一个参数以将其传递给插入函数.
我尝试了这段代码，但出现了异常

Hi all,
I have a gridview and I want to take a parameter from it to pass it to an insert function.
I tried this code but I get an exception

string accountname = ((TextBox)GridView2.Rows[j].Cells[0].Controls[0]).Text; 
insert_ReadyMade_Mobil(Int64.Parse(cmb_Subgroupmobiles.SelectedValue.ToString()), Id.ToString());

谁能帮我，请注意，我在运行时填充了gridview.
谢谢，

Can any one help me please, and notice that I fill the gridview in the runtime.
Thanks

推荐答案

好像无法找到GridView&中的文本框.在您的第一行本身上引发异常.要在ASP.net中的Gridview中访问文本框，您需要使用FindControl在其中查找文本框并将其转换为TextBox.

Looks like,it''s not able to find out the textbox inside the GridView & throwing exception at your first line itself.To acess textbox inside a Gridview in ASP.net, you need to use FindControl to find the textbox inside and cast it to TextBox.

foreach (GridViewRow row in GridView2.Rows)
    {


     string accountname = ((TextBox)row.FindControl("TextBox1")).Text;

    }

看看这篇文章

访问GridView控件内的不同控件 [

Check out this article

Accessing the different controls inside a GridView control[^]

Hope this helps!

首先，您正在检索称为accountname的内容，但是在检索之后，我看不到您下一步将在哪里使用它陈述.

其次，我将在第二行中执行此操作:

First, you''re retrieving something you call accountname, but after retrieving it, I don''t see where you''re using it in the next statement.

Second, I would do this for the 2nd line:

Int64 value;
if (Int64.TryParse(cmb_Subgroupmobiles.SelectedValue.ToString(), out value)
{
    insert_ReadyMade_Mobil(value, ID.ToString());
}
else
{
    // display an error message?
}

以下是我的代码中的一个有效示例:

Heres a working example from my code:

lblMaxCreditJourneys->Text = gridPassenger->Rows[e->RowIndex]->Cells[this->dgMaxCreditJourneys->Name]->Value->ToString();

它的C ++/CLI.更改->到 .您将获得C#

Its C++/CLI. Change -> to . and you will have C#

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