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Why are calls made when the Asp.Net ListBox auto-retry method is called?

I'm sure it is simple, but it drives me crazy.

I have a ListBox on my page to show artists who call the method when the index changes, and a button that loads the artist from this list on another page when clicked:

<asp:ListBox ID="lbArtists" runat="server" Rows="1" AutoPostBack="true" OnSelectedIndexChanged="ShowArtistsWorks" />

<asp:Button ID="btnEditArtist" runat="server" Text="Edit the artist" OnClick="LoadArtist" />

In addition, I have a similar list of links, which also has an auto-repeat method:

<asp:ListBox ID="lbLinks" runat="server" Rows="1" AutoPostBack="true" OnSelectedIndexChanged="LoadLink" />

The problem is that when invoked ShowArtistsWorks()by pressing btnEditArtist, the method is also called LoadLink(). Why is this happening? Why is this caused when I did not change the index in the lbLinksListBox? He should not come close to this method.

EDIT: (relevant) Code-Code Methods (

protected void Page_Load(object sender, EventArgs e)
{
    if (!IsPostBack){
        GetArtists(); // populates artists listbox
        GetLinks(); // populates links listbox
    }
}

protected void LoadArtist(object sender, EventArgs e){
    if (lbArtists.SelectedValue != "")
        Response.Redirect("Artist.aspx?id=" + lbArtists.SelectedValue);
}

protected void LoadLink(object sender, EventArgs e)
{
    if (lbLinks.SelectedValue != "")
        Response.Redirect("Link.aspx?id=" + lbLinks.SelectedValue);
}

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    GetArtists(); // populates artists listbox  
    GetLinks(); // populates links listbox

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    lbLinks.SelectedIndex = 0;
}
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My thought is that the second list does not start with the selected item. When the page loads, your browser automatically selects the first item. When you publish a page, the view state has changed (there is no item for the first item), so a postback event occurs. Try to make sure you have a choice.

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