blocks|key|4146702|text|您可以像这样设置参数的值：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4146703|SqlParameter+parameter1+=+new+SqlParameter("@ClientID",+SqlDbType.BigInt);
parameter1.Value+=+32;
SqlDataSource2.SelectParameters.Add(parameter1);|code-block|syntax|javascript|4146704|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You can set your parameter's value like that : 

<pre><code>SqlParameter parameter1 = new SqlParameter("@ClientID", SqlDbType.BigInt);
parameter1.Value = 32;
SqlDataSource2.SelectParameters.Add(parameter1);
</code></pre>

blocks|key|1330521|text|永远不要通过mind...configured数据源的参数来获取另一个控件的值。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1330522|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Never mind...configured the datasource's parameter to take the value of another control..

blocks|key|4146744|text|你可以通过SqlDataSource上的Selecting事件来解决这个问题，我现在知道在这种控件中限制是多么困难了！|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4146745|另一种方法是在表单中添加一个HiddenField，然后SqlDataSource就可以从那里获取它的值。|4146746|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

You can workaround it by the Selecting event on the SqlDataSource, i now how frustraiting is to be restricted in this kind of controls !!!

Another alternative would be to add a HiddenField to your form, and the SqlDataSource could take its value from there.

blocks|key|930360|text|让它工作的诀窍是在添加参数之前删除您正在尝试使用的参数。您的代码的以下改编版本应该可以工作：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|930361|'+NOTE+that+there+is+no+"@"+sign+when+you+use+your+parameters+in+the+code
Parameter+p+=+strCommandSqlDataSource2.SelectParameters["ClientID"]
strCommandSqlDataSource2.SelectParameters.Remove(p)
strCommandSqlDataSource2.SelectParameters.Add("ClientID",+iClientID)|code-block|syntax|javascript|930362|在使用代码部分命名参数时，不应使用"@“符号。您应该只在SQLCOMMAND字符串中使用它。|930363|希望能有所帮助。|930364|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

The trick to make it work is to remove the paremeter you are trying to use before adding it. The following adapted version of your code should work:

<pre><code>' NOTE that there is no "@" sign when you use your parameters in the code
Parameter p = strCommandSqlDataSource2.SelectParameters["ClientID"]
strCommandSqlDataSource2.SelectParameters.Remove(p)
strCommandSqlDataSource2.SelectParameters.Add("ClientID", iClientID)
</code></pre>

You should not use "@" sign when naming parameters in the code portion of its usage. You should use it only in the SQLCOMMAND string.

Hope it helps.

blocks|key|930388|text|这是VB版本：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|930389|Dim+parameter+As+New+System.Web.UI.WebControls.Parameter("ClientID",+Data.DbType.Int32)
parameter.DefaultValue+=+45
sqlTicketInfo.SelectParameters.Add(parameter)|code-block|syntax|javascript|930390|在VB.NET版本中，无法实际设置该值，因此我改为设置默认值。如果值未初始化，则使用默认值，因此由于我们无法设置该值，因此无论如何它都会自动使用默认值。|930391|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Here's the VB version:

<pre><code>Dim parameter As New System.Web.UI.WebControls.Parameter("ClientID", Data.DbType.Int32)
parameter.DefaultValue = 45
sqlTicketInfo.SelectParameters.Add(parameter)
</code></pre>

With the VB.NET version, there wasn't a way to actually set the value, so I set the default value instead. The default value gets used if the value isn't initialized, so since we can't set the value, it'll automatically use the default value anyways.

blocks|key|1327998|text|如果您已使用WYSWIG编辑器创建数据源，并且希望以编程方式更新SQL参数，则需要执行以下操作：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1327999|Dim+strCommand+=+"SELECT+caller_id,+phone,+name,+email+FROM+callers+WHERE+client_id=@ClientID"

SqlDataSource2.SelectCommand+=+strCommand

**SqlDataSource2.SelectParameters.Clear();**

SqlDataSource2.SelectParameters.Add("@ClientID",+iClientID)|code-block|syntax|javascript|1328000|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

If you've used the WYSWIG editor to create your data source and you want to update the SQL parameters programmatically, then you need to do the following:

<pre><code>Dim strCommand = "SELECT caller_id, phone, name, email FROM callers WHERE client_id=@ClientID"

SqlDataSource2.SelectCommand = strCommand

**SqlDataSource2.SelectParameters.Clear();**

SqlDataSource2.SelectParameters.Add("@ClientID", iClientID)
</code></pre>

blocks|key|1328011|text|我有从GET到SelectCommand的参数变量的解决方案|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1328012|Protected+Sub+Page_Load(sender+As+Object,+e+As+EventArgs)+Handles+Me.Load
+++Dim+p+As+Parameter+=+SQLDataSource.SelectParameters("Order_id")
+++If+IsNothing(p)+Then
++++++++SQLDataSource.SelectParameters.Add("Order_id",+Server.HtmlEncode(Request.QueryString("Order_id")).ToString())
+++End+If
End+Sub|code-block|syntax|javascript|1328013|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

I have solution for variable from GET to parameter for SelectCommand

<pre><code>Protected Sub Page_Load(sender As Object, e As EventArgs) Handles Me.Load
 Dim p As Parameter = SQLDataSource.SelectParameters("Order_id")
 If IsNothing(p) Then
 SQLDataSource.SelectParameters.Add("Order_id", Server.HtmlEncode(Request.QueryString("Order_id")).ToString())
 End If
End Sub
</code></pre>

blocks|key|4146872|text|protected+void+Page_Load(object+sender,+EventArgs+e)
{
++++if+(!IsPostBack)
++++{
++++++++SqlDataSource+SqlDataSource1+=+new+SqlDataSource();
++++++++SqlDataSource1.ID+=+"SqlDataSource1";
++++++++this.Page.Controls.Add(SqlDataSource1);
++++++++SqlDataSource1.ConnectionString+=+System.Configuration.ConfigurationManager.ConnectionStrings["ConID"].ConnectionString;
++++++++SqlDataSource1.SelectCommand+=+"SELECT+caller_id,+phone,+name,+email+FROM+callers+WHERE+client_id=@ClientID";
++++++++SqlDataSource1.SelectParameters.Add("ClientID",ClientID);
++++++++GridView1.DataSource+=+SqlDataSource1;
++++++++GridView1.DataBind();
++++}
}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|4146873|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>protected void Page_Load(object sender, EventArgs e)
{
 if (!IsPostBack)
 {
 SqlDataSource SqlDataSource1 = new SqlDataSource();
 SqlDataSource1.ID = "SqlDataSource1";
 this.Page.Controls.Add(SqlDataSource1);
 SqlDataSource1.ConnectionString = System.Configuration.ConfigurationManager.ConnectionStrings["ConID"].ConnectionString;
 SqlDataSource1.SelectCommand = "SELECT caller_id, phone, name, email FROM callers WHERE client_id=@ClientID";
 SqlDataSource1.SelectParameters.Add("ClientID",ClientID);
 GridView1.DataSource = SqlDataSource1;
 GridView1.DataBind();
 }
}
</code></pre>

I'm trying to set the value of the <code>sqldatasource</code>'s <code>selectcommand</code> parameter <code>@ClientID</code> as in the code below, but it's not working out.
<h3>My code:</h3>
<pre><code>Dim strCommand = &quot;SELECT caller_id, phone, name, email FROM callers WHERE client_id=@ClientID&quot;

SqlDataSource2.SelectCommand = strCommand

SqlDataSource2.SelectParameters.Add(&quot;@ClientID&quot;, iClientID) 
</code></pre>
What am I doing wrong?

How can I set the sqldatasource parameter's value?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我尝试设置sqldatasource的selectcommand参数@ClientID的值，如下面的代码所示，但它不起作用。我的代码：Dim strCommand = "SELECT caller_id, phone, name, email FROM callers WHERE client_id=@ClientID...

问如何设置sqldatasource参数的值？
EN

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问如何设置sqldatasource参数的值？EN